Mock Exam Flashcards
Which of these lab tests may indicate bleeding or blood loss? (choose all correct)
Platelet count
Hemoglobin
Hematocrit
WBC count
Hemoglobin
Hematocrit
Acquiring an infectious agent through the hospital ventilation system is what kind of transmission?
Direct Contact
In-direct Contact
Droplet
Airborne
Airborne
What is the minimum amount of iodinated contrast that may induce an allergic reaction?
>1 ml
50
10 ml
1% of the patient’s total blood volume
>1 ml
Which of the following are clinical signs of anaphylaxis? (Choose all correct)
Vasoconstriction
Hypertension
Airway edema
Mucus secretions
Airway edema
Mucus secretions
Which of these procedures is also called clean technique? Medical Asepsis
Sterile Technique
Medical Asepsis
What is the iodinated contrast agents with these chemical properties.
Ionic, 300 mgl/mL, Osmolality = 1550
Hypaque
What is the iodinated contrast agents with these chemical properties.
Non-ionic, 320 mgI/mL, Osmolality=290
Visipaque
What is the iodinated contrast agents with these chemical properties.
Non-ionic, 350 mgI/mL, Osmolality=884
Omnipaque
Pneumonia requires what kind of isolation precaution? Standard Precaution
Contact Isolation
Droplet Isolation
Airborne Isolation
Droplet Isolation
Disrupting the body’s electrolyte balance is one risk associated with using which of the following contrast types for IV infusion? Ionic
Hypertonic
Non-ionic
High osmolar
Ionic
What type of isolation precaution is most relevant when infectious agents can be suspended in air for long periods of time over long distances?
Standard Precaution
Droplet Isolation
Contact Isolation
Airborne Isolation
Airborne Isolation
Which of the following represents a normal pulse rate for a healthy adult? (choose all correct)
50
75
65
105
75
65
Which of these medication would be valuable to a patient experiencing hypotension or bradycardia during a medication reaction? (Choose all correct)
Benedryl
Atropine
Epinephrine
Versed
Atropine
Epinephrine
Which of these procedures include hand washing, routine equipment cleaning, and proper personal hygiene?
Medical Asepsis
Sterile Technique
Medical Asepsis
Which of the following represents the amount red blood cells in whole blood? (choose all correct)
WBC count
Hemoglobin
Hematocrit
Platelet count
Hematocrit
Which of these lab tests may help to indicate if a patient has anemia? (choose all correct)
Hemoglobin
Hematocrit
PTT
Platelet count
Hemoglobin
Hematocrit
Which of these compensatory mechanisms are associated with CHF? (Choose all correct)
Decreased heart rate
Increased blood volume
Increased cardiac filling pressure
Decrease myocardial mass
Increased blood volume
Increased cardiac filling pressure
Definition of Duration of Action
The time during which the drug is in the body and elicits a therapeutic response
Definition of First Pass Effect
The metabolization of drugs by the liver prior to systemic circulation.
Definition of Onset of Action
The point at which a drug reaches its intended effect
Definition of Maximum Peak
This is when a drug reaches its highest potential and begins to subside
Which of the following indicate a mild contrast reaction? (Choose all correct)
Hives
Itching
Tachycardia
Hypotension
Feeling of warmth
Hives
Itching
What drug classification is Valium
Sedative
What drug classification is Tetracycline
Antibiotic
What drug classification is Coumadin
Anticoagulant
What drug classification is Aspirin
Analgesic
What drug classification is Morphine
Narcotic
What drug classification is Atenolol
beta blocker
Which of the following signs/symptoms are often associated with CVA? (Choose all correct)
Acute Dysphasia
Permanent brain infarction
Acute confusion
Unilateral weakness
All of the above
Defibrillation is used for which of the following conditions? Ventricular Tachycardia
TIA/CVA
Respiratory Arrest
Asystole
Ventricular Tachycardia
Asystole
Deoxygenated blood is emptied into which chamber of the heart?
Right Ventricle
Left Atrium
Left Ventricle
Right Atrium
Right Atrium
The thyroid cartilage, cricoid cartilage, and the epiglottis are all structures of the:
Trachea
Larynx
Oropharynx
Esophagus
Larynx
Which of the following marks the beginning of the distal stomach?
Fundus
Cardia
Pylorus
Antrum
Antrum
The appendix extends from what portion of the colon? Transverse colon
Descending colon
Ascending colon
Cecum
Cecum
Which of the following is the most superior aspect of the stomach?
Pylorus
Cardia
Antrum
Fundus
Fundus
The parotid glands are oriented posterior to what aspect of the mandible?
Body
Ramus
Mentum
None of the above
Ramus
Which of the following vessels circulate blood from the Circle of Willis into the brain?
Cerebral arteries
Communicating arteries
Internal carotids
Basilar artery
Cerebral arteries
The crus, covering the aorta, are an extension of what structure?
Diaphragm
Lungs
IVC
Peritoneum
Diaphragm
Most of the Stomach is located within which quadrant of the abdomen?
RLQ
LUQ
RUQ
LLQ
LUQ
Which aspect of the sternum is visualized on an axial image displaying the articulation of the clavicles with the sternum? Manubrium
Any of the above
Body
Xiphoid process
Manubrium
Which of the following describes the most anterior structure of the female pelvis?
Uterus
Bladder
Rectum
Prostate
Bladder
What term describes the last segment of the GI tract? Descending colon
Sigmoid colon
Anus
Rectum
Rectum
Which of the following structures marks the transition of the larynx into the trachea?
Epiglottis
Cricoid cartilage
Thyroid cartilage
Soft palate
Cricoid cartilage
The optic nerve and the ophthalmic artery pass through the optic canals in which cranial bone?
Ethmoid
Sphenoid
Occipital
Parietal
Sphenoid
Which of the following is used a as landmark dividing the abdominal and pelvic cavities?
Lateral masses
Sacral Foramina
Sacral promontory
Sacral hiatus
Sacral promontory
The SB receives arterial blood from what branch of the aorta? IMA
All of the above
Celiac Trunk
SMA
SMA
Which of the following organs helps to produce antibodies? Spleen
Kidneys
Pancreas
Liver
Spleen
T/F: The fluid-filled outer ring of the intervertebral discs is termed the nucleus pulpous.
False
Which of the following defines the anterior border of the pelvis? Iliac bones
Abdominal muscles
Sacral Prominens
Quadratus lumborum
Abdominal muscles
The foramen ovale provides passage for which of the following? Maxillary Nerve
Optic Nerve
Middle meningeal artery
Mandibular branch of the trigeminal nerve
Mandibular branch of the trigeminal nerve
Which of the following is least likely to be identified in the pelvis?
Duodenum
Jejunum
Cecum
Ileum
Duodenum
Which of the following is also known as the ala?
Sacral promontory
Sacral hiatus
Lateral masses
Sacral Foramina
Lateral masses
The middle and inner ear are formed by which portion of the temporal bones?
Tympanic
Mastoid
Squamous
Petrous
Petrous
The most anterior bone of the pelvic bone is the:
Ischium
Pubis
Ilium
Pubis
The confluence of the common iliac veins forms which of the following?
Internal iliac arteries
Common femoral arteries
Common iliac arteries
IVC
IVC
The perpendicular plate articulates with which bone to form the boney nasal septum?
Sphenoid
Vomer
Occipital
Ethmoid
Vomer
Which of the following is the chief venous pathway of the trunk and lower body?
IVC Azygos vein
Left brachiocephalic vein
Right brachiocephalic vein
IVC
T/F: All vertebrae of the cervical spine share the same characteristic features.
False
Which vertebral ligament covers the dorsal surface of the vertebral bodies of the spine?
Anterior longitudinal ligament
Posterior longitudinal ligament
Ligamentum flavum
Interspinous ligament
Posterior longitudinal ligament
The spine is nearest what surface of the body?
Anterior
Dorsal
Ventral
Rostral
Dorsal
Which of the following is the most posterior structure in the male pelvis?
Uterus
Rectum
Prostate
Iliac
muscles
Rectum
The lobes of the cerebellum are connected medially by which of the following structures?
Insula
Midbrain
Corpus Callosum
Vermis
Vermis
Which of the following is accessed and injected with contrast for a myelogram?
None of the above
Central canal
Subarachnoid
space Subdural space
Subarachnoid space
Which of the following may be found below and behind the urinary bladder?
Rectum
Prostate
Iliac muscles
Uterus
Prostate
Which of the following correctly describes the appearance of gastric cancer in sectional imaging? (Choose all correct)
focal wall thickening with mucosal irregularity
wall thickening with loss of normal rugal folding pattern
focal mass/polyp with or without ulceration
gas-filled ulceration
All of the above
Which of the following describes the appearance of uterine fibroids in sectional imaging? (Choose all correct)
Solid
Calcified
Cystic
Variable size
Solid
Calcified
Variable size
Which of the following are common causes of renal stones? (Choose all correct)
recurrent yeast infections
low fluid intake
metabolic abnormalities
dehydration
low fluid intake metabolic abnormalities dehydration
Pulmonary Fibrosis is a severe form of which of these conditions?
Tuberculosis
COPD
Bronchogenic Carcinoma
Interstitial Lung Disease
Interstitial Lung Disease
Pancreatic cancers primarily affect what aspect of the pancreas?
Uncinate process
Body
Tail
Head
Head
Which of these conditions is imaged as progressive scarring of the lung tissue?
Pneumothorax
Interstitial Lung Disease
Hemothorax
COPD
Interstitial Lung Disease
T/F: Imaging studies alone always allow for differentiation between benign and malignant neoplasms.
False
Which of these injuries can sometime be associated with more serious injuries to the ethmoid and sphenoid sinuses?
Blow-out fractures
Zygomaticomaxillary complex fractures
Nasal fractures
LeFort fractures
Nasal fractures
Which of these lesions grows from the Schwann cell’s of the 8th cranial nerve?
Pituitary adenoma
Medulloblastoma
Astrocytoma
Meningiomas
Acoustic Neuromas
Acoustic Neuromas
What is the most common primary brain tumor?
Astrocytoma
Medulloblastoma
Meningiomas
Acoustic Neuroma
Pituitary adenoma
Astrocytoma
Which of these fractures may result in injury to the maxillary sinus? (choose all correct)
Blow-out fractures
Mandibular fracture
Nasal fractures
Zygomaticomaxillary complex fractures
Blow-out fractures
Zygomaticomaxillary complex fractures
Which of the following statements are true concerning imaging of the spleen? (Choose all correct)
Malignant splenic lesions may appear as single or multi-focal
Patchy contrast enhancement during arterial imaging indicates splenic infarct or laceration
During the venous phase of contrast enhancement the spleen should appear homogenous
Malignant splenic lesions may appear as single or multi-focal
During the venous phase of contrast enhancement the spleen should appear homogenous
Which of the following is a kind of organ infarct? (Choose all correct)
MI
TIA/CVA
Malignancy
Ascites
MI
TIA/CVA
Which of the following statements are true concerning imaging of Crohn’s disease? (Choose all correct)
May affect the mesentery
Imaged primarily as large bowel thickening
Shows chronic inflammation without remission
May be associate with abscess
May affect the mesentery
May be associate with abscess
Which of these conditions is a result of infection in the brain? (Choose all correct)
Meningitis
Encephalitis
Brain abscess
ICB
Meningitis
Encephalitis
Brain abscess
Which of these fractures is comparable to a green stick fracture in long bones?
Ping-pong fracture
Diastatic fracture
Basilar skull fracture
Depressed skull fracture
Ping-pong fracture
Which of these conditions are most likely to be associated with changes in cardiac function? (choose all correct)
MI
Pericardial effusion
Myxoma
CHF
MI
Pericardial effusion
CHF
T/F: Hemangiomas appear only in the liver.
False
Which of these are common causes of liver cirrhosis? (Choose all correct)
Alcoholism
Pancreatitis
Hepatitis
Renal failure
Alcoholism
Hepatitis
Which of these conditions is most likely to metastasize?
Uterine leiomyoma
Wilm’s tumor
BPH
Urolithiasis
Wilm’s tumor
Which of the following are imaging indications of organ laceration? (Choose all correct)
Contrast extravasation in or around the organ
Hematoma in the area of the organ
Limited or absence of contrast perfusion through the organ
Atypical contrast perfusion through the organ
All of the above
Which of the following describes the early-stage appearance of endometrial cancer?
necrosis
loculations
hemorrhage
wall thickening
wall thickening
Which of these terms specifically describes a cancerous tumor? Neoplasm
Benign
Abscess
Malignant
Malignant
T/F: Careful timing of post contrast pituitary scans is important because eventually the pituitary gland enhances itself, as well as a microadenoma, if present.
True
T/F: Contrast is routinely used in the cervical spine for patients with a diagnosis of MS.
True
T/F: Toe movement will not affect MR foot image quality.
False
T/F: Spinal schwannomas arise from nerves within the spinal canal.
True
T/F: MR knee arthrography can be useful to identify recurrent tears in the knee following meniscectomy.
True
Which of the following describes a typical injury pattern observed after a posterior glenohumeral dislocation?
Hill-Sachs lesion
Adhesive capulitis
Paralabral joint cyst
Trough lesion
Trough lesion
T/F: There are five ventricles in the brain.
False
CNR between pathology and other structures can best be demonstrated by which of the following?
Suppression of normal tissues via sequences that null signal from certain tissues (i.e. FLAIR, STIR)
Non-contrast studies
Lower field strength magnets
Utilizing T1 sequences
Suppression of normal tissues via sequences that null signal from certain tissues (i.e. FLAIR, STIR)
Which of the following is considered the most common cause of PAD?
Shiny skin on legs
No pulse or weak pulse in the legs or feet
Leg numbness or weakness
Atherosclerosis
Atherosclerosis
T/F: Chemical shift artifact occurs when anatomy that lies within the boundaries of the receiver coil exists outside the FOV.
False
Spatial resolution may be increased by selecting which of the following?
Thin Slices
Coarse matrices
Thick slices
A large FOV
Thin Slices
T/F: False aneurysms are usually the result of knee trauma, surgery/intervention or infection.
True
T/F: Closed and open mouth views are performed for TMJs.
True
T/F: The choice of coil for any examination is one of the most important factors that determines the resultant SNR of the image.
True
T/F: Scar tissue enhances immediately after the injection, but disc material does not.
True
To minimize aliasing in axial slices of the thoracic spine, one would use:
Breath holds
Saturation pulses
Chemical presaturation
Oversampling
Oversampling
T/F: If a patient has had a hysterectomy, axials and coronals would be straight and not angled with any anatomy.
True
T/F: Inversion recovery sequences begin with a 180 degree pulse.
True
Which of the following is thought to be due to chronic entrapment of the nerve by the intermetatarsal ligament?
PVNS
Morton’s Neuroma
Synovial sarcoma
Calcaneal fatigue fracture
Morton’s Neuroma
Axial slices through the head/brain are prescribed from:
Right to Left
Superior to Inferior
Left to Right
Inferior to Superior
Inferior to Superior
Which of the following sequences is known for its sensitivity to magnetic susceptibility?
Perfusion
FLAIR
GRE
SE
GRE
Axial slices through the thoracic spine are angled parallel to: spinous processes
spinal cord
disc spaces
Z joints
disc spaces
To minimize magnetic susceptibility artifact from a hip prosthesis, a technologist should:
Use GRE sequences
Increase the SNR
Use as small a FOV as possible
Use SE or FSE sequences with a broad receive bandwidth
Use SE or FSE sequences with a broad receive bandwidth
A hamartoma is best described as:
a ganglion that often appears as a bump on the hand or wrist.
a benign tumor composed of mature hyaline cartilage.
a bone cyst.
a benign tumor-like malformation made up of an abnormal mixture of cells and tissues found in the body.
a benign tumor-like malformation made up of an abnormal mixture of cells and tissues found in the body.
Which of the following is the most common mass in the popliteal fossa?
Popliteal aneurysm
Ganglion cyst
Synovial sarcoma
Baker cyst
Baker cyst
Which of the following best describes the appearance of acute stroke on an axial DWI?
Bright
Dark
Bright
Scan time can be decreased by using which of the following?
A long TR
The most NEX allowable
A short TR
A fine matrix
A short TR
T/F: All halos are MRI safe.
False
Positioning for a female pelvis MR exam would include centering the horizontal alignment light to pass:
through a point midway between the symphysis pubis and the iliac crest
through the level of the umbilicus
through the symphysis pubis
through the iliac crest
through a point midway between the symphysis pubis and the iliac crest
T/F: Intra-voxel dephasing occurs as a result of the phase difference between stationary and flowing nuclei in the same voxel causing dephasing and signal loss.
True
On T1 weighted images of the spine, the CSF appears:
Isointense to the spinal cord
Hypointense to the spinal cord
Hyperintense to the spinal cord
None of the above
Hypointense to the spinal cord
T/F: Positioning the feet close together and at the same level is the best method to reduce wrap for ankle imaging.
False
T/F: Patients are positioned supine head first for run-off exams.
False
T/F: If a technologist increases the matrix on a sequence (assuming the FOV remains the same), the spatial resolution will increase, but the SNR will decrease.
True
The optimal plane to use when evaluating patients for cruciate ligament tears of the knee is the:
Sagital
Axial and coronal
Coronal
Axial
Sagital
The imaging sequences best used to visualize bruises or contusions within the bone are:
Spin echo
Gradient echo
Fast spin echo
Short Tau Inversion Recovery (STIR)
Short Tau Inversion Recovery (STIR)
T/F: A bursa is a fat filled sac that allows smooth motion between two uneven surfaces.
False
T/F: The emotional well being of a patient is just as important as their physical condition.
True
T/F: Increasing the TR results in increased SNR and increased scan time.
True
Which of the following sequences fills all of K space in one repetition by using very long echo trains?
EPI
STIR
SE
GRE
EPI
T/F: The most common site of aneurysms in the thoracic aorta is the ascending aorta.
True
T/F: FOV boundaries for sagital thoracic spine images include from T2 to L1.
False
A patient presents with pain in the neck and shoulder, numbness and tingling in the fingers, and a weak grip. Which of the following is most likely the cause?
Thoracic outlet syndrome
Schwannoma
Herniated thoracic disc
Whiplash
Thoracic outlet syndrome
Which of the following separates the right atrium and right ventricle?
Semilunar valve
Septum
Mitral valve
Tricuspid valve
Tricuspid valve
T/F: The optimal imaging window for evaluation of breast cancer is immediately following the start of the menstrual cycle.
False
T/F: A Chiari Malformation can be see on a cervical spine image.
True
T/F: Ideal ankle positioning includes dorisflexion of the foot.
True
T/F: The main source of artifact in the brain is from flow motion of the popliteal artery.
False
T/F: There are four ventricles in the brain.
True
Generally, 3D TOF-MRA acquisitions are optimal for high resolution, for the evaluation of:
Velocity-induced phase shifts
Slower flowing arterial vasculature and vessels with a large area of coverage (carotids and/or femoral arteries)
Phase and magnitude images
Smaller vessels with high velocity blood flow (intracranial vessels associated with the Circle of Willis, COW)
Smaller vessels with high velocity blood flow (intracranial vessels associated with the Circle of Willis, COW)
After gadolinium administration, it is recommended that which images are acquired?
Multiple T2 weighted images
Multiple T1 weighted images
One T1 weighted image
One T2 weighted image
Multiple T1 weighted images
T/F: Intrinsic parameters are those that cannot be changed because they are inherent to the body’s tissues.
True
In which of the following sequences is all the transverse magnetization rewound at the end of each TR period?
Coherent gradient echo
Incoherent gradient echo
EPI
Coherent gradient echo
T/F: The purpose of magnetic field shimming is to reduce the size of the fringe field.
False
What signal intensity is an area of abnormality likely to have on an ADC map?
Hypointense
Hyperintense
Isointense
Hypointense
Determine which of the following parameters would result in the most entry slice phenomenon (i.e. entry slice phenomenon would increase compared to the other options).
Slice 10 out of 20, 3000 TR, 1.2 mm slice thickness
Slice 10 out of 20, 400 TR, .7 mm slice thickness
Slice 1 of 20, 3000 TR, .7 mm slice thickness
Slice 1 out of 20, 400 TR, 1.2 mm slice thickness
Slice 1 of 20, 3000 TR, .7 mm slice thickness
What is T2 decay? (Select all that apply)
Spin-spin relaxation that results in decay or loss of coherent transverse magnetization.
Caused by the nuclei giving up their energy to the surrounding environment.
Spin lattice relaxation
The time it takes 63% of longitudianl magnetization to recover in the tissue.
Spin-spin relaxation that results in decay or loss of coherent transverse magnetization.
Which gradient performs slice selection for sagital slices?
Any combination of gradients
Z gradient
Y gradient
X gradient
X gradient
Gadolinium element is ________ and gadolinium chelate contrast media is ________.
Ferromagnetic/paramagnetic
Paramagnetic/paramagnetic
Ferromagnetic/ferromagnetic
Paramagnetic/ferromagnetic
Ferromagnetic/paramagnetic
What kind of information is contributed by data collected in the central lines of K space?
Contrast
Resolution
Signal
* weighting
Contrast
Signal
What is Vortex Flow?
Flow that is initially laminar, but then passes through a structure or stenosis in the vessel. Flow in the center of the Lumen has high velocity, but near the walls the flow spirals.
What is Laminar Flow?
Flow that occurs at different but consistent verlocities across a vessel. The flow at the center of the lumen of the vessel is faster than at the vessel wall where resistance slows down the flow. Velocity difference across the vessel is constant.
What is Spiral Flow?
The direction of the flow is spiral.
What is Turbulent Flow?
Flow at differnet velocities that fluctuates randomly. The velocity difference across the vessel changes erratically.
Once a ferromagnetic material is exposed to an externally applied magnetic field, it becomes magnetized (a permanent magnet). Permanent magnets are said to be:
Bipolar
Tripolar
Polar
Dipoles
Bipolar
T/F: Flow affects image quality.
True
Ohm’s law states:
B = H (1+x)
1 T = 10 kG
V = I (R)
B = k (l)
V = I (R)
Stationary nuclei always receive both excitation and rephasing pulses, but flowing nuclei present in the slice for the excitation may have exited the slice before rephasing. This is called ______________.
Entry Slice Phenomenon
Intra-Voxel Dephasing
Time of Flight Phenomenon
Turbulent Flow Effects
Time of Flight Phenomenon
What are the advantages of propeller K Space filling?
Rapid imaging, increased SNR and CNR, reduced motion artifact.
Better detail
Bright signal
Low SNR but high resolution
Rapid imaging, increased SNR and CNR, reduced motion artifact.
What is another name for a truncation artifact in a sagital cervical spine?
Faraday
Truncation
Gibbs
Gyromagnetic Artifact
Gibbs
What does the slope of the frequency encoding gradient determine?
The size of the anatomy covered along the frequency encoding axis
The 180 degree rephasing pulse
The size of the phase matrix
The FOV
The size of the anatomy covered along the frequency encoding axis
The FOV
What term is used to describe the net displacement of diffusion spins across a tissue?
fMRI
SWI
MRS
ADC
ADC
Which part of K space do shallow phase gradients fill?
Outer lines of K space, both positive and negative
Central lines of K space, both positive and negative
Central lines of K space, positive only
Outer lines of K space, positive only
Central lines of K space, both positive and negative
When is the slice select gradient switched on during a spin echo pulse sequence?
During the excitation pulse only
It is always on during the scan
During the 90 and 180 degree pulses
During the rephasing pulse only
During the 90 and 180 degree pulses
Which of the following are methods of reducing phase ghosting? (Choose all that apply)
Decrease the TE
Use “no phase wrap” softwareUse pre-saturation pulses
Swap phase and frequency
Carefully explain the procedure to the patient
Using respiratory compensation techniques
Use pre-saturation pulses
Swap phase and frequency
Carefully explain the procedure to the patient
Using respiratory compensation techniques
Which sequence would be used to best visualize metastatic lesions in the bone?
Fat saturation techniques with contrast
Non-contrast imaging
FLAIR with contrast
T2 weighted sequences
Fat saturation techniques with contrast
In spin echo sequences using a pre-saturation pulse, what would persistent bright signal within the vessel indicate?
Slow Flowing Blood
Blood Clot
Vascular Occlusion
Fast Flowing Blood
Slow Flowing Blood
Blood Clot
Vascular Occlusion
Which of the following best describe spin-lattice relaxation? (Choose all that apply)
T1 Recovery
T2 Decay
Nuclei give up energy to the surrounding environment, resulting in longitudinal recovery.
Time it takes 88% of the longitudinal magnetization to recover in tissue.
T1 Recovery
Nuclei give up energy to the surrounding environment, resulting in longitudinal recovery.
Which Fast Inversion Recovery sequence(s) do we often use?
SSFP
FLAIR
STIR
Incoherent Gradient Echo
FLAIR
STIR
Which of the following does NOT reduce flow motion artifact?
GMN
ECG gating
SAT
Subtraction
Subtraction
Fourier transform (FT) is a mathematical process that is used to convert MR signal from a FID into a spectrum. FT occurs in the:
RF coil
Image processor
Array processor
Gradient amplifier
Array processor
T/F: The gyromagnetic ratio expresses the relationship between the angular momentum and the magnetic moment of each MR active nucleus.
True
In which direction does phase ghosting occur? (Choose all applicable)
Frequency Axis
Phase Axis
Slice Select Axis
Anterior to Posterior
Phase Axis
Which gradient locates signal along the LONG axis of the anatomy?
Slice select gradient
Isocenter gradient
Phase encoding gradient
Frequency encoding gradient
Frequency encoding gradient
What is the waiting period before each R wave called?
Available Imaging Time
Trigger Delay
R to R Interval
Trigger Window
Trigger Window
What MUST be done prior to anyone entering the scan room? (Select the BEST answer)
Pat the patient down for metal objects.
A screening sheet must be filled out and in the patient’s chart.
The patient must be scanned with the metal detector.
The completed screening sheet must be signed by a level II staff member and the patient must be scanned with the metal detector, prior to admittance to the MRI scan room.
The completed screening sheet must be signed by a level II staff member and the patient must be scanned with the metal detector, prior to admittance to the MRI scan room.
Which of the following best describes a T1 weighted image?
Bright fat
Bright water
Dark Fat
Dark Water
Bright fat
Dark Water
Select the three components of the magnetic field from those listed below.
Precessional Frequency Field
Faraday’s Field
Radiofrequency Fields
Time Varying Magnetic Fields
Static Magnetic Field
Radiofrequency Fields
Time Varying Magnetic Fields
Static Magnetic Field
Which of the following best describes Moire artifact?
Anatomy from outside the FOV are wrapped into the image.
Different chemical environments of fat and water produce a dark edge at the interface between fat and water.
Black and white banding artifact on the edge of the FOV
Fat and water are out of phase and their signals cancel each other out.
Black and white banding artifact on the edge of the FOV
The homogeneity of a magnetic field is expressed in units of:
G (gauss)
ppm (parts per million)
T (Tesla)
MHz (megaHertz)
ppm (parts per million)
What happens to the alignment of hydrogen protons when placed in an external magnetic field? (Check all that apply)
The magnetic moments of the nuclei align with or against the main magnetic field.
Nothing until an RF pulse is applied.
More nuclei oppose the main magnetic field than line up with the main magnetic field.
Slightly more nuclei line up with the main magnetic field than against it.
The magnetic moments of the nuclei align with or against the main magnetic field.
Slightly more nuclei line up with the main magnetic field than against it.
What is the approximate T1 relaxation time of CSF at 1T?
150 ms
500 ms
2000 ms
3000 ms
2000 ms
The magnetic field strength in superconducting magnets is maintained with cryogens at a temperature of:
450°C
70°F (+/- 2°F)
4 K
269°F
4 K
The vascular signal, produced on PC-MRA, relies on:
MOTA
Velocity-induced phase shifts
Flow related enhancement
PC
Velocity-induced phase shifts
Select all of the following that were discussed as possible MR contrast agents in the text.
Gadolinium
Blueberry juice
Mango juice
Dilute barium solutions
All of the above
In which direction does aliasing occur? (Choose all that apply)
Phase Axis
Frequency Axis
Slice Select Axis
Anterior to Posterior
Phase Axis
Frequency Axis
What type of echoes are sampled during SS-FSE?
Spin echoes
Gradient echoes
Incoherent Gradient echoes
Spin echoes
When using MRA to evaluate extracranial vascular flow, such as that within common carotid arteries, a recommended technique is:
3D phase contrast MRA
2D time of flight MRA
3D time of flight MRA
All of the above
2D time of flight MRA
What is Double IR prep used to accomplish?
Flips the NMV back to zero
Imaging large patients
Used to null blood for cardiac imaging
FSE sequences
Used to null blood for cardiac imaging
Which of the following are methods of reducing phase ghosting? (Choose all that apply)
Use pre-saturation pulses
Using respiratory compensation techniques
Decrease the TE
Swap phase and frequency
Use “no phase wrap” software
Carefully explain the procedure to the patient
Use pre-saturation pulses
Using respiratory compensation techniques
Swap phase and frequency
Swap phase and frequency
T/F: For resonance of hydrogen to occur, RF at EXACTLY the Larmor frequency of hydrogen must be applied.
True
What is the approximate T1 relaxation time of fat at 1T?
2000 ms
3000 ms
200 ms
500 ms
200 ms
Label the anatomy in the following image.
A
B
C
D
Not Labeled
Mandibular condyle
Occipital Bone
Maxillary Sinus
EAM
Label the anatomy in the following image.
A
B
C
D
E
Not Labeled
Lamina
Intervertebral Disc
Psoas Muscle
Intervertebral Foramina
Erector Spinae Muscle
Transverse Foramina
Label the anatomy in the image below.
A
B
C
D
Not Labeled
Hamate
Triquetrum
Capitate
Ulna
Radius
Label the anatomy in the following image.
A
B
C
D
E
Not Labeled
Superior Sagital Sinus
Tentorium
Parietal Lobe
Lateral Ventricle
Cerebellum
3rd Ventricle
Label the anatomy in the image below.
A
B
C
D
E
Not Labeled
Trochlea
Radial Shaft
Humeral Shaft
Olecranon Processes
Corocoid Process
Ulnar Shaft
Identify the anatomy in the following image.
A
B
C
D
Not Labeled
Large Bowel
Common Iliac Artery
Small Bowel
Ilium
Appendix
What pathology is visible in this image?
Ovarian tumor
Ovarian cyst
Uterine fibroid
Prostate cancer
Uterine cancer
Uterine cancer
What pathology is seen in this image?
Spinal Metastasis
Spinal Meningioma
Spinal Ependymoma
Tethered cord
Spinal Meningioma
What pathology is seen in this image?
CAD
Pericardial Effusion
CHF
Myxoma
CHF
Which of these pathologies is visualized in the image below?
Medulloblastom
Arachnoid Cyst
SDH
AVM
MS
AVM
What pathology is visible in the image below?
Arachnoid Cyst
Hydrocephalus
MS
Medulloblastoma
AVM
MS
What pathology is visible in this image? Mark multiple if more than one pathology is visible or if clinical correlation is needed to distinguish between pathologies with similar imaging characteristics.
Pneumothorax
Hemothorax
Tuberculosis
Interstitial Lung Disease
Pneumothorax
Hemothorax
What pathology is visible in this image?
Horseshoe kidney
Renal Stone
RCC
Wilm’s tumor
PKD
PKD
What pathology is visible in the following image?
Spinal Stenosis
Ankylosing Spondylitis
Subluxation
Compression Fracture
Ankylosing Spondylitis
What pathology is seen in this image?
Spinal Metastasis
Spinal Meningioma
Tethered cord
Spinal Ependymoma
Spinal Metastasis
What pathology is visible in this image?
Liver cancer
Hemangiomas
Cirrhosis
Liver laceration
Liver cancer
What pathology is visible in this image?
Crohn’s disease
Colitis
Appendicitis
SBO
Colon cancer
Colitis
What pathology is visible in this image?
Renal Stone
TCC
RCC
BPH
Prostate cancer
TCC
What pathology is seen in this image?
Spinal Meningioma
Tethered cord
Bulging disc
Spinal Ependymoma
Bulging disc
What pathology is seen in this image?
Pericardial Effusion
PE
CAD
Myxoma
Myxoma
What pathology is visible in this image?
Adrenal mass
Renal Stone
Kidney laceration
Wilm’s tumor
RCC
Kidney laceration
Which of these pathologies is visualized in the image below?
Medulloblastoma
EDH
ICB
Ischemic stroke
SDH
SDH
What pathology is seen in this image?
Compression Fracture
Tethered Cord
Ankylosing Spondylitis
Spondylolisthesis
Spondylolisthesis
Which of the following is a normal diastolic blood pressure?
115
89
75
125
75
Which of the following describes a severe reaction to iodinated contrast?
Hives
Hypotension
Itching
Diaphoresis
Hypotension
Which of the following terms are synonymous? (Choose all correct)
Cerebral Infarct
Ischemic Stroke
Transient Ischemic Attack
Cerebrovascular Accident
Cerebral Infarct
Ischemic Stroke
Cerebrovascular Accident
Which of the following lab values directly relate to renal performance? (choose all correct)
Creatinine
GFR
Hematocrit
PTT
Creatinine
GFR
Which of these medications would be especially valuable if a patient is having a respiratory reaction to ICM? (Choose all correct)
Oxygen
Epinephrine
Albuterol
Atropine
Oxygen
Epinephrine
Albuterol
Which of these cardiac conditions can cause inadequate ventricular filling in the presence of a healthy myocardium?
Myocardial Infarction
Cardiogenic Shock
Cardiac Tamponade
Congestive Heart Failure
Cardiac Tamponade
Define Vasoconstrictors?
A drug causing contraction and narrowing of blood vessels.
Define Antiarrythmics
These drugs function to reduce or prevent arrhythmias
Define Thrombolytics
A clot dissolbing drug specifically used to treat patients with acute symptoms of MI or stroke
Define Vasodilators
A drug causing relaxation and opening of blood vessels
Which of the following can cause respiratory arrest? (Choose all correct)
Decreased respiratory drive
Respiratory muscle weakness
Airway obstruction
Trauma
Decreased respiratory drive
Respiratory muscle weakness
Airway obstruction
Trauma
Tuberculosis requires what kind of isolation precaution?
Droplet Isolation
Airborne Isolation
Contact Isolation
Standard Precaution
Airborne Isolation
Define Pharmacology
The study of drug reactions with living organisms
Define Pharmacokinetics
Relates to the drugs process of absorption, distribution, metabolism and excretion by the body (what the body does to the drug)
Define Pharmacodynamics
The study of mechanisms by which drug dosages produce physiological or biochemical changes in the body (what the drug does to the body)
C-Diff requires what kind of isolation precaution?
Airborne Isolation
Droplet Isolation
Standard Precaution
Contact Isolation
Contact Isolation
The formula for calculating a patient’s GFR includes which of the following? (choose all correct)
Creatinine level
Gender
Weight
Ethnicity
Age
Creatinine level
Gender
Age
What is the most common MRI contrast agent?
Hexabrix
Gadolinium
Iron
Omnipaque
Gadolinium
Which these conditions typically occurs secondary to myocardial infarction?
Congestive Heart Failure
Cardiac Tamponade
Cardiogenic Shock
Transient Ischemic Attack
Cardiogenic Shock
What are the chemical properties of Hypaque
Ionic, 300mgl/mL, Osmolality=1550
What are the chemical properties of Visipaque
Non-ionic, 320 mgl/mL, Osmolality=290
What are the chemical properties of Omnipaque
Non-ionic, 350mgl/mL, Osmolality=884
Which of these medications would be useful to a patient with an anxiety disorder?
Epinephrine
Valium
Reglan
Zofran
Valium
Internal and external protuberances are processes of what cranial bone?
Parietal
Sphenoid
Ethmoid
Occipital
Occipital
Which vertebral ligament attaches between the lamina of adjoining vertebrae?
Ligamentum flavum
Interspinous ligament
Anterior longitudinal ligament
Posterior longitudinal ligament
Ligamentum flavum
Which of the following describes the large opening on the inferior aspect of the sacrum?
Sacral Foramina
Sacral promontory
Lateral masses
Sacral hiatus
Sacral hiatus
The Dorsal cavity is partitioned into what two cavities? (mark all correct)
Spinal
Abdominal
Mediastinal
Pelvis
Cranial
Spinal
Cranial
Which of the following muscle groups extend from the cervical vertebrae through the upper thoracic spine?
Erector spinae muscles
Splenius muscles
Transversospinal muscles
Psoas muscles
Splenius muscles
Which of the paranasal sinuses is present at birth?
Maxillary
Sphenoid
Ethmoid
Frontal
Maxillary
The appendix is located within which quadrant of the abdomen?
RUQ
LUQ
LLQ
RLQ
RLQ
The whitish opaque portion of the eye is termed the:
Conjunctiva
Cornea
Lens
Sclera
Sclera
The terminal end of the spinal cord is described by which of the following?
Sella Turcica
Cauda equina
Medulla oblongata
Conus medullaris
Conus medullaris
An abnormal forward curvature of the thoracic spine is termed:
Prognosis
Lordosis
Hypnosis
Kyphosis
Kyphosis
Which aspect of the brainstem is continuous with the spinal cord?
Medulla oblongata
Mid brain
Pons
None of the above
Medulla oblongata
What fissure separates the frontal and parietal lobes from the temporal lobe?
Longitudinal Fissure
Central Fissure
Lateral Fissure
Rolandic Fissure
Lateral Fissure
The external walls of the EAM are formed by which portion of the temporal bone?
Squamous
Tympanic
Petrous
Mastoid
Tympanic
Which of the following is a direct extension of the ventricular system of the brain?
None of the above
Epidural space
Central canal
Subdural space
Central canal
What structure marks the beginning of the lower respiratory system?
Oropharynx
Larynx
None of the above
Nasopharynx
Larynx
During menstruation the walls of the uterus may appear thicker or thinner usual?
Thinner
Thicker
Thicker
A process of the malar bone joins with which bone of the cranium to form the zygomatic arch?
Temporal
Sphenoid
Frontal
Parietal
Temporal
Which of the following is not a retroperitoneal structure?
Transverse colon
Kidneys
Ureters
IVC
Transverse colon
The mandibular condyle articulates with which of the following cranial bones?
Frontal
Occipital
Parietal
Tempora
Tempora
The large projection on the posterior surface of the scapula dividing it into upper and lower fossae is termed the:
Acromion process
Scapular spine
Coracoid process
Glenoid fossa
Scapular spine
The perpendicular plate of what bone forms the superior portion of the nasal septum?
Ethmoid
Palatine
Vomer
Sphenoid
Ethmoid
The sigmoid colon is located within which quadrant of the abdomen?
LLQ
RUQ
RLQ
LUQ
LLQ
Which of the following lacks a typical vertebral body?
C2
C6
C7
C1
C1
The urethra in males passes through which of these organs?
Uterus
Iliac muscles
Rectum
Prostate
Prostate
Arterial blood to the liver is provided by a branch of what artery?
SMA
IMA
Celiac Trunk
Celiac Trunk
The pituitary gland is attached by the infundibulum to what other feature of the diencephalon?
Epithalamus
Thalamus
Hypothalamus
Pituitary gland
Hypothalamus
The lungs are located within which body cavity?
Dorsal
All of the above
Mediastinum
Pleural
Pleural
Which of the following describes potential characteristics of adrenal lesions (Choose all correct)
cystic
benign
malignant
metastatic
All of the above
Which of these conditions appears as inflammation in the bowel?
Cancer
Colitis
Abscess
Ascites
Colitis
T/F: Hemangiomas appear only in the liver.
False
Which of these lesions are most often malignant? (choose all correct)
Acoustic Neuromas
Pituitary adenoma
Medulloblastoma
Meningiomas
Astrocytoma
Medulloblastoma
Astrocytoma
Which of these fractures follows the “ring rule”?
Zygomaticomaxillary complex fractures
Nasal fractures
Blow-out fractures
Mandibular fractures
Mandibular fractures
From where do renal stones originate?
VUJ
Ureters
Bladder
Collecting system
Collecting system
What is the most common lesion of the brain?
Benign brain neoplasm
Gliomas
Metastatic brain cancer
Primary brain cancer
Metastatic brain cancer
Which of these fractures are most likely to result in CSF leakage? (choose all correct)
Depressed skull fracture
Basilar skull fracture
Diastatic fracture
Ping-pong fracture
Basilar skull fracture
Diastatic fracture
Which of the following statement concerning liver cancer are true? (choose all correct)
Primary liver cancer will enhance during the arterial phase of imaging
Metastatic liver cancer can be both singular or multi-focal
Primary liver cancer is more common than secondary liver cancer
Metastatic liver cancer will enhance during the venous phase of imaging
Primary liver cancer will enhance during the arterial phase of imaging
Metastatic liver cancer can be both singular or multi-focal\
Metastatic liver cancer will enhance during the venous phase of imaging
Which of these conditions is most likely to show contrast extravasation? Choose multiple if applicable.
Ruptured Aneurysm
Simple aneurysm
Dissecting aneurysm
Ruptured Aneurysm
What aspect of the kidney can be affected by renal cell carcinoma (RCC)? (Choose all correct)
cortex
Gerota’s fascia
collecting system
medulla
cortex
collecting system
medulla
Which of these conditions causes a permanent loss of neurologic function? (choose one or both)
Hemorrhagic stroke
Ischemic stroke
Hemorrhagic stroke
Ischemic stroke
Traumatic contusions in the brain are one form of which of the following conditions?
Subarachnoid Hemorrhage (SAH)
Epidural Hemorrhage (EDH)
Subdural Hemorrhage (SDH)
Intracranial bleed (ICB)
Intracranial bleed (ICB)
Which of the following tumors are malignant? (Choose all correct)
Spinal Metastasis
Spinal Ependymoma
Spinal Meningioma
Astrocytoma
Spinal Metastasis
Astrocytoma
Which of the following describe imaging characteristics of pancreatitis? (Choose all correct)
Pancreatic pseudocysts
Ascites
Reactive fluid
Pancreas inflammation
Pancreatic pseudocysts
Ascites
Reactive fluid
Pancreas inflammation
Which of these fractures is most likely to be comminuted?
Basilar skull fracture
Ping-pong fracture
Diastatic fracture
Depressed skull fracture
Depressed skull fracture
Which of the following best describe contrast enhancement of pancreatic tumors?
Absence of venous enhancement
Highly vascular
Delayed enhancement
No contrast enhancement
Delayed enhancement
Which of these are common complications associated with zygomaticomaxillary complex fractures? (Choose all correct)
“Floating face”
Blood in the maxillary sinus
Ocular injuries
Dural tearing
Blood in the maxillary sinus
Ocular injuries
T/F: Malignant lesions identified in the spleen are most likely lymphoma.
True
Which of these conditions might be viewed as surface and parenchymal nodularity in the liver?
Laceration
Primary liver cancer
Secondary liver cancer
Cirrhosis
Cirrhosis
Which of the following are common causes of pneumonia? (choose all correct)
Fungal infections
Aspiration
Chemical inhalation
Chest trauma
All of the above
What term describes a cancer in one organ/tissue but originated from a different organ/tissue?
Malignant neoplasm
Benign neoplasm
Primary cancer
Metastatic neoplasm
Metastatic neoplasm
T/F: Leiomyomas are benign tumors that arise from overgrowth of smooth muscle and connective tissue in the bladder.
False
Most deep vein blood clots occur in the _______.
Lungs
IVC
Lower leg or thigh
Foot
Lower leg or thigh
T/F: SNR is dependent on the quality of the coil
True
The American Cancer Society recommends screening breast MRI in addition to annual mammograms in which of the following?
Patients with less than a 15% lifetime risk of breast cancer.
To evaluate implant integrity.
In patients with greater than 20% lifetime risk of breast cancer.
In all women over the age of 40.
In patients with greater than 20% lifetime risk of breast cancer.
A patient presents with pain in the neck and shoulder, numbness and tingling in the fingers, and a weak grip. Which of the following is most likely the cause?
Herniated thoracic disc
Whiplash
Schwannoma
Thoracic outlet syndrome
Thoracic outlet syndrome
Which of the following best defines spatial resolution?
The ability to distinguish two between two points as separate and distinct
The difference in the SNR between two adjacent areas
The ratio of the amplitude of signal received by the coil to the amplitude of the noise
The time required to complete the acquisition of data
The ability to distinguish two between two points as separate and distinct
Which of the following is a malignant bone tumor that affects children and young adults? the tumor may start anywhere in the body, usually in the long bones of the arms and legs, the pelvis, or the chest.
Ewing Sarcoma
Chordoma
Transitional Cell Carcinoma
Teratoma
Ewing Sarcoma
Enlargement of the left lobe of the liver is most likely a sign of which of the following diseases processes?
Hepatic mets
Renal failure
Cirrhosis
Ascites
Cirrhosis
A/an _________ can break loose and cause a pulmonary embolism.
DVT
Arterial stenosis
Atherosclerosis
Lymph node
DVT
Adhesive capsulitis is also known as:
Trough lesion
Carpal tunnel
Tennis elbow
Frozen shoulder
Frozen shoulder
On sagital T-Spine images that demonstrate cord compression, the vertebral level can be determined by (think about how you determine this in clinicals when scanning):
Using lead markers to mark T12 and T1 on large FOV images
Using the sternal notch as a landmark and counting down from T1
Using the xyphoid as a landmark and counting up from T12
Using a large FOV localizer and counting down from C2
Using a large FOV localizer and counting down from C2
T/F: MRI is the most sensitive detection method for calcaneal stress fracture.
True
T/F: A SLAP tear occurs where the biceps tendon anchors to the labrum.
True
The “candy cane” view is best described by which of the following:
Long axis view of the heart
Axial view of the thoracic aorta
Sagital/oblique view of the pulmonary arteries
Sagital/oblique view of the thoracic aorta
Sagital/oblique view of the thoracic aorta
Indications for MRV of the lower extremities includes all but which of the following?
Leg swelling
Recent twisted ankle
Evaluation for free-floating thrombus
Recent orthopedic surgery
Recent twisted ankle
Which of the following sequences would be most helpful in diagnosing MS?
Open and closed views
Thin slices through the optic chiasm
Sagital STIR
Sagital FLAIR
Sagital FLAIR
Which of the following anchors the spinal cord to the coccyx?
Sacral hiatus
Conus medularis
Filum terminale
Cauda equina
Filum terminale
The coil usually preferred to image the shoulder for the maximization of SNR is the:
Surface or local coil
Body coil
Small extremity coil
Phased array coil
Surface or local coil
A patient who presents with numbness of the first three digits and nighttime pain from the wrist to the forearm most likely has:
Carpal tunnel syndrome
De Quervain Tenosynovitis
Sarchoidosis
Hamartoma
Carpal tunnel syndrome
Which diagnosis is considered most likely in a patient who presents with pain, swelling, and reddening over the olecranon. The MR images show bone marrow and soft tissue edema.
Triceps tendon tear
Rheumatoid arthritis
Osteomyelitis
SLAP tear
Osteomyelitis
To minimize pulsatile flow motion artifacts, cardiac images are acquired by:
Performing cardiopulmonary resuscitation
None of the above
Taking the patient’s pulse, calculating the heart rate in beats per minute, then entering this data into the imaging system
Attaching ECG leads, monitoring the cardiac cycle and triggering the pulse sequence from each R wave
Attaching ECG leads, monitoring the cardiac cycle and triggering the pulse sequence from each R wave
T/F: A common artifact seen when scanning the cervical spine region is the result of swallowing motion.
True
T/F: Contrast is routinely used in MRI of the hand
False
Cancer that begins in the plasma cells in bone marrow is known as:
Glioma
Metastatic disease
Multiple Sclerosis
Multiple Myeloma
Multiple Myeloma
Which of the following is another word for bulging of one or both eyes?
Pseudotumor
Proptosis
COW
Sarcoid
Proptosis
T/F: Motion artifact can be problematic in 2D TOF imaging.
True
Which of the following is not in the distal row of carpal bones?
Trapezium
Hamate
Lunate
Capitate
Lunate
Common sources of artifact for an orbital MR exam include all of the following except:
flow motion in the Circle of Willis
zipper artifact
using a small FOV- aliasing
eye movement
zipper artifact
In spine imaging, to rule out metastatic lesions of the spinal cord, contrast enhancement can be used with T1 weighted images because:
CSF is bright and cord is dark
Normal cord enhances and metastatic lesions do not
Metastatic lesions enhance and normal cord does not
Scar enhances and disk does not
Metastatic lesions enhance and normal cord does not
T/F: Patients may be positioned feet first supine for an MRI of the lumbar spine.
True
T/F: When positioning a patient’s legs for a lower extremity vascular study, the legs should be placed as far apart as possible.
False
Which of the following sequence(s)/technique(s) can be used to make vessels appear bright?
All of the above
Gradient Moment Rephasing
Contrast Enhancement
Gradient Echo Imaging
All of the above
What rule determines the direction of current flow through a coil, and the direction of the magnetic field that the current produces?
Whether you are using an open or closed configuration
Right hand thumb rule
MRI Fringe Field Rule
The size of the magnetic field
Right hand thumb rule
MRA techniques include all of the following EXCEPT:
CT-MRA
CE-MRA
PC-MRA
TOF-MRA
CT-MRA
T/F: Perfusion is measured using MRI by tagging the fat in arterial blood during image acquisition.
False
T/F: Even echo rephasing reduces intra-voxel dephasing.
True
What is the extrinsic parameter that controls the amount of diffusion seen in an image?
flip angle
b factor
TR
TE
b factor
T/F: TR controls T2 weighting.
False
Which of the following is used to trigger each pulse sequence when using ECG gating?
R wave
S wave
P wave
Q wave
R wave
Choose extrinsic contrast parameters from the list below.
Flip Angle
T1 Recovery Time
Flow
TR
Proton Density
TE
b Value
Flip Angle
TR
TE
b Value
T/F: The TE is twice the TAU.
True
Which of the following effects does TOF depend on?
TE
TR
Slice Thickness
Velocity of flow
TE
Slice Thickness
Velocity of flow
T/F: TOF phenomenon results in a dark vessel.
True
T/F: To reduce chemical shift artifact, ALWAYS use the widest receive bandwidth in keeping with good SNR and the smallest FOV possible.
True
Which of the following is a remedy for aliasing?
Decreasing the slice thickness
Using “no phase wrap” software
Decreasing the TE
Decreasing the size of the FOV
Using “no phase wrap” software
Choose all of the following that enhancement agents can be useful in detecting.
Tumors
Infarction
Inflammation
Infection
All of the above
Which cryogen is commonly used to super cool wires in MRI?
Liquid helium
Niobium
Hydrogen
Alnico
Liquid helium
What do T2 images typically best demonstrate?
Bony anatomy
Anatomy
Pathology
Fat
Pathology
Determine which of the following parameters would result in the most entry slice phenomenon (i.e. entry slice phenomenon would increase compared to the other options).
Slice 10 out of 20, 3000 TR, 1.2 mm slice thickness
Slice 1 of 20, 3000 TR, .7 mm slice thickness
Slice 10 out of 20, 400 TR, .7 mm slice thickness
Slice 1 out of 20, 400 TR, 1.2 mm slice thickness
Slice 1 of 20, 3000 TR, .7 mm slice thickness
Magnetic field strength can be expressed in units of Tesla (T) or gauss (G), where:
3.0 T = 0.3 G
1 T = 1 G
1 T = 10 000 G
1.5 T = 1500 G
1 T = 10 000 G
The signal from flowing blood within vessels in MRI and MRA relies on:
Fourth order motion
Second order motion
Third order motion
First order motion
First order motion
T/F: ECG gating is prospective.
True
What are the two results of resonance? (Choose from the list below)
The NMV moves into a repeating pattern of +/- 100 MHZ.
The magnetic moments of hydrogen nuclei move into phase with each other.
The NMV moves out of alignment and away from B0.
The magnetic momements of hydrogen nuclei move out of phase with each other.
The magnetic moments of hydrogen nuclei move into phase with each other.
The NMV moves out of alignment and away from B0.
T/F: Intra-voxel dephasing results in an increase in total signal amplitude from the voxel.
False
T/F: All gadolinium contrast agents have the same ‘relaxivity’.
False
How often must we sample frequencies, according to the Nyquist Theorem?
Once per cycle
Twice per cycle
Less than once per cycle
Three times per cycle
Twice per cycle
What are the guidelines for pregnant employees? (Choose all that apply)
Pregnant employees MUST transfer to x-ray once they’ve announced their pregnancy to the MRI department.
Pregnant employees may enter the scan room, but should leave before scanning begins.
Pregnant employees are exempt from scanning and may only do paperwork.
No changes to pregnant employees work environment in MRI. Everyone knows that MRI doesn’t use radiation.
Pregnant employees may enter the scan room, but should leave before scanning begins.
What is the chemical shift at 1.5 T?
220 Hz
2.2 Hz
220 KHz
22 Hz
220 Hz
T/F: Another term for time of flight is inflow effect.
False
The anatomy of white matter tracts can be mapped using strong multi-directional gradients in which of the following?
SWI
diffusion tensor imaging (DTI)
continuous arterial spin labeling (CASL)
CBV
diffusion tensor imaging (DTI)
T/F: In some circumstances, magnetic susceptibility artifact can be useful in diagnosis.
True
Passive magnetic shielding can be accomplished by lining the scan room walls with:
Shim plates
Lead
Copper
Steel
Steel
Label the anatomy in the following image.
A
B
C
Not labeled
Frontal
Temporal Bone
Occipital Bone
External Occipital Protuberance
Label the anatomy in this image
A
B
C
D
Not Labeled
Right Coronary Artery
Left Main Coronary Artery
LAD
Circumflex Artery
Coronary Sinus
Label the anatomy in this image.
A
B
C
D
Subclavian Artery
You Answered
Not Labeled
Esophagus
Brachiocephalic Vein
Sternoclavicular Joint
Subclavian Artery
Pulmonary Artery
Label the anatomy in the following image.
A
B
C
D
Not Labeled
Vertebral Body
Transverse Process
Articular Facets
Spinous Process
Intervertebral Foramina
Label the anatomy in the following image.
A
B
C
D
E
Not labeled
Pariental Bone
Choroid Plexus
Longitudical Fisure
Lateral Ventrical
Parietal Lobe
Lateral Fissure
Label the anatomy in the image below.
A
B
C
D
E
Not Labeled
Abductor Digiti Muscles
Pisiform
Thenar Muscle
Trapezium
Flexor Muscles
Ulna
Label the anatomy in the image below.
A
B
C
D
E
Not Labeled
Extensor Digitorum Muscle
Fibula
Tibia
Flexor Hallicus Longus Muscle
Achilles Tendon
Posterior Tibialis Tendon
Identify the anatomy in the following image.
A
B
C
D
Not Labeled
Uterus
Bowel
Urinary bladder
Rectum
Ovary
What pathology is visible in the image below?
Chiari Malformation
ICB
SDH
Medulloblastoma
EDH
Chiari Malformation
Which of the following pathologies is visualized in this image? (choose all correct)
Linear skull fracture
Depressed skull fracture
Epidural hematoma
Basilar skull fracture
Ping-pong skull fracture
Ping-pong skull fracture
What pathology is visible in this image? (Choose all correct)
Ascites
Neoplasm
Abscess
Cyst
Ascites
Neoplasm
What pathology is visible in this image?
Colitis
Crohn’s disease
Appendicitis
SBO
Colon cancer
Crohn’s disease
What pathology is visible in this image? (choose multiple)
Crohn’s disease
Colitis
SBO
Appendicitis
Colon cancer
SBO
Colon cancer
Which of these pathologies is visualized in the image below?
SDH
EDH
Ischemic stroke
Abscess
Neoplasm
Ischemic stroke
What pathology is visible in this image?
Pancreatic Cancer
Cholelithiasis
Pancreatitis
GB Cancer
Liver cancer
Pancreatitis
What pathology is visualized in the following image?
Dental abscess
Mandible Fracture
Blow-out fracture
LeFort fracture
Zygomaticomaxillary complex fracture
Mandible Fracture
What pathology is visible in this image?
Liver cancer
Hemangiomas
Cirrhosis
Liver laceration
Liver laceration
Which of these pathologies is visualized in the image below?
SDH
Ischemic stroke
Astrocytoma
Abscess
Medulloblastoma
Medulloblastoma
What pathology is visible in this image? Mark multiple if more than one pathology is visible or if clinical correlation is needed to distinguish between pathologies with similar imaging characteristics.
Pneumonia
Tuberculosis
Pneumothorax
COPD
COPD
What pathology is visible in this image?
Liver cancer
Splenic Laceration
Lymphoma
Gastric cancer
Lymphoma
What pathology is visible in this image?
Laceration
Neoplasm
Hematoma
Infarct
Infarct
Which of the following best describes the anatomy indicated by number twelve on the image shown below:
Teres major muscle
Spine of the scapula
Scapula
Acromion
Scapula
Which of these medications should be administered prior the CT exam if the patient has had a prior reaction to iodinated contrast?
Zofran
Solu-medrol
Glucagon
Atropine
Solu-medrol
Which of these precautions is most relevant when a patient carries an infectious agent that may be spread through talking, sneezing, or coughing?
Droplet Isolation
Contact Isolation
Standard Precaution
Airborne Isolation
Droplet Isolation
BLS skills include recognition of which of the following conditions? (Choose all correct)
TIA/CVA
FBAO
MI
Anaphylaxis
TIA/CVA
FBAO
MI
Define Teratogenic
Adverse affects of drug use to a fetus that causes abnormal development.
Define Carcinogenic
Drugs that are indicated as cancer producing.
Define Nephrotoxic
Drugs that adversely affect the kidneys or their functions.
Correctly order the sequence through which a drug is delivered into systemic circulation.
Absorption through the small bowel
Metabolism in the liver
Systemic circulation
Passage through the portal hepatic system
First
Third
Fourth
Second
Which of these medications would be especially valuable to a patient experiencing bronchospasms during a contrast reaction?
Albuterol
Atropine
Epinephrine
Lasix
Albuterol
Which of the following describes a negative contrast agent?
Paramagnetic particles
Barium Sulfate
Microbubbles
Visipaque
Microbubbles
Which of the follow is a transmission-based infection precaution? (Choose all correct)
Contact Isolation
Airborne Isolation
Droplet Isolation
Standard Precaution
Contact Isolation
Airborne Isolation
Droplet Isolation
Creatinine level can fluctuate with which of the following? (choose all correct)
Muscle Mass
Gender
Age
Hydration
Muscle Mass
Gender
Age
Hydration
Meningitis requires what kind of isolation precaution?
Standard Precaution
Droplet Isolation
Contact Isolation
Airborne Isolation
Droplet Isolation
Which of the following can cause respiratory arrest? (Choose all correct)
Decreased respiratory drive
Trauma
Respiratory muscle weakness
Airway obstruction
Decreased respiratory drive
Trauma
Respiratory muscle weakness
Airway obstruction
What term describes an atom or molecule that dissociates into ions when placed in water?
Ionic
Non-ionic
Cation
Monomer
Ionic
Which of these lab tests may help to indicate if a patient has anemia? (choose all correct)
Hematocrit
Platelet count
PTT
Hemoglobin
Hematocrit
Hemoglobin
Which these conditions typically occurs secondary to myocardial infarction?
Cardiac Tamponade
Cardiogenic Shock
Congestive Heart Failure
Transient Ischemic Attack
Cardiogenic Shock
Which of these procedures include hand washing, routine equipment cleaning, and proper personal hygiene?
Medical Asepsis
Sterile Technique
Medical Asepsis
Which vertebral ligament covers the dorsal surface of the vertebral bodies of the spine?
Anterior longitudinal ligament
Ligamentum flavum
Posterior longitudinal ligament
Interspinous ligament
Posterior longitudinal ligament
Which of these medications would help to increase blood pressure in the event of a hypotensive reaction? (Choose all correct)
Epinephrine
Atropine
Valium
Zofran
Epinephrine
Atropine
Which of the following are clinical signs of anaphylaxis? (Choose all correct)
Vasoconstriction
Airway edema
Hypertension
Mucus secretions
Airway edema
Mucus secretions
Which of the following should be disclosed for the sake of “informed consent”? (choose all correct)
The risks and benefits of a proposed treatment or procedure
Alternatives
The risks and benefits of not receiving or undergoing a treatment or procedure
The patient’s diagnosis, if known
The risks and benefits of a proposed treatment or procedure
Alternatives
The risks and benefits of not receiving or undergoing a treatment or procedure
The patient’s diagnosis, if known
Which of the following describes a required characteristic of IV injectable contrast media? (choose all correct)
Isotonic
Low-density barium
Water-soluble
Non-ionic
Isotonic
Water-soluble
Non-ionic
The transparent anterior bulge of the bulbus oculi is termed the:
Conjunctiva
Sclera
Lens
Cornea
Cornea
Which of the following describes the large opening on the inferior aspect of the sacrum?
Sacral promontory
Sacral hiatus
Sacral Foramina
Lateral masses
Sacral hiatus
Widened areas of the subarachnoid space are referred to as:
Ventricles
Basal cisterns
Meninges
Choroid plexus
Basal cisterns
Posteriorly the trachea is in contact with which structure of the mediastinum?
Esophagus
Carotid arteries
Thyroid tissue
Larynx
Esophagus
The large projection on the posterior surface of the scapula dividing it into upper and lower fossae is termed the:
Coracoid process
Glenoid fossa
Scapular spine
Acromion process
Scapular spine
The perpendicular plate articulates with which bone to form the boney nasal septum?
Sphenoid
Ethmoid
Occipital
Vomer
Vomer
What term describes the s-shaped portion of the large bowl in the LLQ?
Descending colon
Sigmoid colon
Rectum
Anus
Sigmoid colon
Which aspect of the sternum is visualized on an axial image displaying the articulation of the clavicles with the sternum?
Any of the above
Body
Xiphoid process
Manubrium
Manubrium
Which of the following is not a retroperitoneal structure?
Kidneys
IVC
Ureters
Transverse colon
Transverse colon
The chin is also called the:
Acanthion
Ramus
Mentum
Gonion
Mentum
The Xiphoid process is at the level of:
T10
T12
T11
T9
T10
Which of the following is accessed during an epidural to inject anesthetic agents?
Subdural space
Subarachnoid space
None of the above
Central canal
None of the above
Which of the following terms refers to the most posterior aspect of the neural arch?
Lamina
Pedicle
Transverse process
Articular Facets
Lamina
Which of the following terms is also termed tertiary bronchi?
Alveolar ducts
Lobular bronchi
Secondary bronchi
Primary bronchi
none of the above (lobular are secondary)
Segmental is the correct answer but not an option
Which of the following is also known as the ala?
Lateral masses
Sacral Foramina
Sacral promontory
Sacral hiatus
Lateral masses
Define Proximal
Towards the origin
Define Deep
Away from the skin/surface
Define Cranial/Cephalic
Towards the head
Define Caudal
Towards the feet
Define Distal
Away from the origin
Define Superficial
Towards the skin/surface
Which of the following is a direct extension of the ventricular system of the brain?
Epidural space
None of the above
Central canal
Subdural space
Central canal
Which structure is positioned closest to the spine?
Trachea
Esophagus
Esophagus
The most posterior aspect of the cerebrum is the:
Diencephalon
Cerebellum
Occipital lobe
Brainstem
Occipital lobe
Which of the following is not composed of white brain matter?
Corpus Callosum
Cerebral cortex
None of the above
Myelinated Axons
Cerebral cortex
Which of these structures are contained within the pelvic cavity? (choose all correct)
Ovaries
Kidneys
Rectum
Gonads
Ovaries
Rectum
Gonads
Which of the following arteries circulate blood around the major vessels of the Circle of Willis?
Basilar artery
Cerebral arteries
Communicating arteries
Internal carotids
Communicating arteries
Which of the following is the most posterior structure in the male pelvis?
Uterus
Iliac muscles
Prostate
Rectum
Rectum
Which of the following continues as the sigmoid colon?
Ascending colon
Transverse colon
Cecum
Descending colon
Descending colon
In standard anatomic position, the hands and feet are:
Dorsaflexed
Forward
Internally Rotated
Pronated
Forward
The lobes of the cerebellum are connected medially by which of the following structures?
Midbrain
Insula
Corpus Callosum
Vermis
Vermis
Costo-vertebral joints are a feature unique to which aspect of the vertebral column?
Cervical
Thoracic
Lumbar
Sacral
Thoracic
Which of the following supplies arterial blood to the myocardium?
Pulmonary veins
Pulmonary arteries
Coronary arteries
Aorta
Coronary arteries
The coronary arteries extend from what large vessel of the heart?
Pulmonary arteries
Superior Vena Cava
Aorta
Azygos Vein
Aorta
T/F: The vertebral arteries pass through the vertebral foramina of the cervical spine on the way to the cranium.
False
During menstruation the walls of the uterus may appear thicker or thinner usual?
Thicker
Thinner
Thicker
Which of the following connects the ventricular system to the subarachnoid space?
Interventricular foramen
Cerebral aqueduct
Foramen of Luschka
Foramen of Magendie
Foramen of Luschka
The cochlea is found in which portion of the ear?
External
Tympanic portion
Middle
Inner
Inner
Which of the following is least likely to be identified in the pelvis?
Cecum
Jejunum
Duodenum
Ileum
Duodenum
Which of these fractures is comparable to a green stick fracture in long bones?
Depressed skull fracture
Diastatic fracture
Basilar skull fracture
Ping-pong fracture
Ping-pong fracture
Which of following describes the appearance of a brain abscess in sectional imaging? (Choose all correct)
May be associated with edema
Often rim-enhancing
May shows areas of necrosis
Often associated with hemorrhage
May be associated with edema
Often rim-enhancing
May shows areas of necrosis
Which of the following is the most common primary cancer?
Breast
Colorectal
Lung
Prostate
Prostate
Which of the following describe imaging characteristics of pancreatitis? (Choose all correct)
Ascites
Pancreas inflammation
Pancreatic pseudocysts
Reactive fluid
Ascites
Pancreas inflammation
Pancreatic pseudocysts
Reactive fluid
Which of these lesions grow primarily in the cerebellum/posterior fossa of the cranial cavity?
Medulloblastoma
Pituitary adenoma
Astrocytoma
Meningiomas
Acoustic Neuromas
Medulloblastoma
Which of the following is a form of lung cancer? (choose all correct)
Primary lung cancer
Interstitial Lung Disease
Bronchogenic Carcinoma
Metastatic Lung Cancer
Primary lung cancer
Bronchogenic Carcinoma
Metastatic Lung Cancer
Which of these conditions appear most similar on sectional imaging? (choose two)
Pleural Effusion
Bronchogenic Carcinoma
Tuberculosis
Hemothorax
Pleural Effusion
Hemothorax
What is the most common etiology of colon cancer?
Ulcerative colitis
Colic ulcer
Crohn’s disease
Polyp neoplasm
Polyp neoplasm
Which of these conditions appear most similar in sectional imaging? (choose two)
COPD
Pneumothorax
Hemothorax
Interstitial Lung Disease
COPD
Interstitial Lung Disease
Which of these conditions is caused by blood extravasation in the brain? (choose one or both)
Ischemic stroke
Hemorrhagic stroke
Hemorrhagic stroke
Which of these brain lesions is most likely to appear in multiples?
Benign brain neoplasm
Metastatic brain cancer
Primary brain cancer
Gliomas
Metastatic brain cancer
Which of the following are imaging indications of organ laceration? (Choose all correct)
Limited or absence of contrast perfusion through the organ
Contrast extravasation in or around the organ
Atypical contrast perfusion through the organ
Hematoma in the area of the organ
Limited or absence of contrast perfusion through the organ
Contrast extravasation in or around the organ
Atypical contrast perfusion through the organ
Hematoma in the area of the organ
Which of these lesions are most likely to be associated with hormonal imbalances?
Medulloblastoma
Meningiomas
Pituitary adenoma
Astrocytoma
Acoustic Neuromas
Pituitary adenoma
Which of these pathologies is sometimes accompanied by meningocele formation?
Ankylosing Spondylitis
Spina Bifida
Spinal Meningioma
Tethered cord
Spina Bifida
Which of these conditions commonly exist secondary to primary or metastatic lung cancer? (choose all correct)
Abscess formations
Necrosis
Pulmonary Embolism
Pleural effusions
Abscess formations
Necrosis
Pleural effusions
Which of the following are common causes of renal stones? (Choose all correct)
low fluid intake
metabolic abnormalities
dehydration
recurrent yeast infections
low fluid intake
metabolic abnormalities
dehydration
Ischemic stroke may be a result of arterial interruption in which of these vessels? (choose all correct)
Basilar artery
Internal carotids
Descending aorta
Cerebral arteries
Basilar artery
Internal carotids
Cerebral arteries
Which of these fractures occur only along suture lines?
Depressed skull fracture
Basilar skull fracture
Ping-pong fracture
Diastatic fracture
Diastatic fracture
What term describes a cancer in one organ/tissue but originated from a different organ/tissue?
Metastatic neoplasm
Primary cancer
Malignant neoplasm
Benign neoplasm
Metastatic neoplasm
Which of these conditions might appear as a walled cavity filled with infected fluid, blood, and sometimes air?
Hematoma
Ascites
Abscess
Inflammation
Abscess
Where is a myxoma most likely to be imaged?
Left Atrium
Left Ventricle
Right Ventricle
Right Atrium
Left Atrium
Which of these conditions causes a permanent loss of neurologic function? (choose one or both)
Ischemic stroke
Hemorrhagic stroke
Ischemic stroke
Hemorrhagic stroke
T/F: SNR is dependent on the quality of the coil
True
T/F: When positioning a patient’s legs for a lower extremity vascular study, the legs should be placed as far apart as possible.
False
When imaging the wrist, the optimal plane in which to visualize the carpal tunnel is the:
Oblique
Sagital
Coronal
Axial
Axial
Which of the following is the most inferior portion of the spinal cord?
Sacral hiatus
Cauda equina
Conus medullaris
Filum terminale
Conus medullaris
T/F: When performing a MSK study, it is often helpful to place a marker over the ROI.
True
Adhesive capsulitis is also known as:
Tennis elbow
Carpal tunnel
Frozen shoulder
Trough lesion
Frozen shoulder
Indications for MRV of the lower extremities includes all but which of the following?
Recent twisted ankle
Recent orthopedic surgery
Leg swelling
Evaluation for free-floating thrombus
Recent twisted ankle
A patient who presents with numbness of the first three digits and nighttime pain from the wrist to the forearm most likely has:
Carpal tunnel syndrome
Sarchoidosis
Hamartoma
De Quervain Tenosynovitis
Carpal tunnel syndrome
To image the veins of the head:
a pre-saturation pulse is placed superior to the FOV
contrast must always be used
the COW is visualized
a pre-saturation pulse is placed inferior to the FOV
a pre-saturation pulse is placed inferior to the FOV
T/F: For an MRI of the hand or wrist, a patient may be positioned prone or supine, depending on the coil options available.
True
Enlargement of the left lobe of the liver is most likely a sign of which of the following diseases processes?
Cirrhosis
Renal failure
Hepatic mets
Ascites
Cirrhosis
T/F: Careful timing of post contrast pituitary scans is important because eventually the pituitary gland enhances itself, as well as a microadenoma, if present.
True
T/F: When positioning the patient for an MR examination of the shoulder, the humerus should be perpendicular to the scan table.
False
The “candy cane” view is best described by which of the following:
Long axis view of the heart
Sagital/oblique view of the pulmonary arteries
Axial view of the thoracic aorta
Sagital/oblique view of the thoracic aorta
Sagital/oblique view of the thoracic aorta
T/F: The most common site of aneurysms in the thoracic aorta is the ascending aorta.
True
When scanning a routine female pelvis exam, axials would be angled in which manner?
Perpendicular to the uterus
Perpendicular to the cervix
Parallel to the uterus
Parallel to the cervix
Perpendicular to the uterus
At which level does the spinal cord typically terminate?
L1-L2
L5-S1
L3-L4
L2-L3
L1-L2
CNR between pathology and other structures can best be demonstrated by which of the following?
Non-contrast studies
Lower field strength magnets
Utilizing T1 sequences
Suppression of normal tissues via sequences that null signal from certain tissues (i.e. FLAIR, STIR)
Suppression of normal tissues via sequences that null signal from certain tissues (i.e. FLAIR, STIR)
Which of the following is considered the most common cause of PAD?
Leg numbness or weakness
No pulse or weak pulse in the legs or feet
Shiny skin on legs
Atherosclerosis
Atherosclerosis
T/F: The emotional well being of a patient is just as important as their physical condition.
True
T/F: MRI can assist in detecting the presence of osteomyelitis.
True
T/F: MRA and MRV can be performed either with contrast or without contrast, using different imaging techniques.
True
T/F: There are five ventricles in the brain.
False
Common sources of artifact for an orbital MR exam include all of the following except:
using a small FOV- aliasing
flow motion in the Circle of Willis
eye movement
zipper artifact
zipper artifact
The American Cancer Society recommends screening breast MRI in addition to annual mammograms in which of the following?
To evaluate implant integrity.
Patients with less than a 15% lifetime risk of breast cancer.
In patients with greater than 20% lifetime risk of breast cancer.
In all women over the age of 40.
In patients with greater than 20% lifetime risk of breast cancer.
Which of the following best represents a coarse matrix?
256 X 128
256 X 256
512 X 512
256 X 128
T/F: Teratomas are present at birth and may contain hair, teeth, and other tissues.
True
The coil usually preferred to image the shoulder for the maximization of SNR is the:
Phased array coil
Surface or local coil
Small extremity coil
Body coil
Surface or local coil
Which of the following is a malignant bone tumor that affects children and young adults? the tumor may start anywhere in the body, usually in the long bones of the arms and legs, the pelvis, or the chest.
Transitional Cell Carcinoma
Chordoma
Teratoma
Ewing Sarcoma
Ewing Sarcoma
T/F: There are four ventricles in the brain.
True
Which of the following best describes the ACL?
Extends from the medial aspect of the lateral femoral condyle to the posterior tibial spine
Extends from the medial aspect of the medial femoral condyle to the anterior tibial spine
Extends from the medial aspect of the lateral femoral condyle to the anterior tibial spine
Extends from the lateral aspect of the medial femoral condyle to the anterior tibial spine
Extends from the medial aspect of the lateral femoral condyle to the anterior tibial spine
T/F: Patients are positioned supine head first for run-off exams.
False
To minimize aliasing in axial slices of the thoracic spine, one would use:
Saturation pulses
Oversampling
Chemical presaturation
Breath holds
Oversampling
T/F: MRI is the most sensitive detection method for calcaneal stress fracture.
True
Which of the following would best demonstrate hemorrhage?
FSE
GRE
STIR
FLAIR
GRE
Scan time can be decreased by using which of the following?
A long TR
The most NEX allowable
A fine matrix
A short TR
A short TR
Which diagnosis is considered most likely in a patient who presents with pain, swelling, and reddening over the olecranon. The MR images show bone marrow and soft tissue edema.
Rheumatoid arthritis
SLAP tear
Osteomyelitis
Triceps tendon tear
Osteomyelitis
Which of the following sequences provides temporal resolution of enhancing lesions and indicates brain activity?
T1
Perfusion
STIR
FLAIR
Perfusion
T/F: Careful timing of post contrast pituitary scans is important because eventually the pituitary gland enhances itself, as well as a microadenoma, if present.
True
T/F: The optimal imaging window for evaluation of breast cancer is immediately following the start of the menstrual cycle.
False
Which of the following sequences fills all of K space in one repetition by using very long echo trains?
SE
STIR
EPI
GRE
EPI
A patient presents with pain in the neck and shoulder, numbness and tingling in the fingers, and a weak grip. Which of the following is most likely the cause?
Schwannoma
Whiplash
Thoracic outlet syndrome
Herniated thoracic disc
Thoracic outlet syndrome
T/F: Careful explanation of free breathing and breath holds is crucial to a good abdominal study.
True
For optimal imaging of the cervical spine, patient positioning and local coil placement are:
Supine/around the neck to include from C1 to C7
Prone/on top of the neck to include from C1 to C7
Supine/on top of the neck to include from C1 to C7
Supine/beside the neck to include from C1 to C7
Supine/around the neck to include from C1 to C7
T/F: Contrast is routinely used in the cervical spine for patients with a diagnosis of MS.
True
T/F: MRA is generally considered “non-invasive.”
True
Prior to an MRCP examination, patients should be NPO for __ hours.
three
four
two
one
four
T/F: Toe movement will not affect MR foot image quality.
False
Axial slices through the thoracic spine are angled parallel to:
Z joints
disc spaces
spinous processes
spinal cord
disc spaces
T/F: Any tissue can be nulled as long as an RF pulse matching its precessional frequency is applied to the imaging volume before excitation.
True
How often must we sample frequencies, according to the Nyquist Theorem?
Twice per cycle
Three times per cycle
Once per cycle
Less than once per cycle
Twice per cycle
SSFP sequences usually produce images that are ___ weighted.
T1
T2
T2*
T1 or T2*
T2
T/F: MR microscopy (MRM) is useful as a research tool when studying detail in a very small area of tissue.
True
Which of the following does NOT reduce flow motion artifact?
SAT
GMN
ECG gating
Subtraction
Subtraction
What unit is used to express the amount of chemical shift?
gyromagnetic ratio
ppm
MHz
Hz
ppm
The homogeneity of a magnetic field is expressed in units of:
MHz (megaHertz)
G (gauss)
ppm (parts per million)
T (Tesla)
ppm (parts per million)
To maintain the magnetic field of a resistive magnet, the following should be applied to the magnet coils:
Heat
Cooling
Water
Current
Current
What is another term for phase ghosting?
Phase mismapping
Phase wrap
Aliasing
Chemical misregistraion
Phase mismapping
Which of the following best describe spin-lattice relaxation? (Choose all that apply)
Nuclei give up energy to the surrounding environment, resulting in longitudinal recovery.
T2 Decay
T1 Recovery
Time it takes 88% of the longitudinal magnetization to recover in tissue.
Nuclei give up energy to the surrounding environment, resulting in longitudinal recovery.
T1 Recovery
In which direction does truncation occur? (Choose all that apply)
Slice Select Axis
Anterior to Posterior
Frequency Axis
Phase Axis
Phase Axis
Which part of K space do steep phase gradients fill?
Outer lines of K space, both positive and negative
Central lines of K space, positive only
Outer lines of K space, positive only
Central lines of K space, both positive and negative
Outer lines of K space, both positive and negative
Which gradient performs phase encoding for coronal slices?
Y gradient
Z gradient
X gradient
Any combination of gradients
X gradient
How is K space filled in Fast Gradient Echo Sequences? (choose all that apply)
Elliptical filling
Centric filling
Keyhole filling
Outside to inside
Centric filling
Keyhole filling
T/F: Parallel imaging is usually used to increase resolution or decrease scan time
True
What does the slope of the frequency encoding gradient determine?
The size of the phase matrix
The size of the anatomy covered along the frequency encoding axis
The FOV
The 180 degree rephasing pulse
The size of the anatomy covered along the frequency encoding axis
The FOV
When is the phase encoding gradient switched on in a pulse sequence?
Between TRs
During the spin echo
Usually just before the application of the 180 degree rephasing pulse
Before the 90 degree excitation pulse
Usually just before the application of the 180 degree rephasing pulse
Magnetic field strength can be expressed in units of Tesla (T) or gauss (G), where:
1 T = 1 G
- 5 T = 1500 G
- 0 T = 0.3 G
1 T = 10 000 G
1 T = 10 000 G
What are the advantages of propeller K Space filling?
Better detail
Bright signal
Rapid imaging, increased SNR and CNR, reduced motion artifact.
Low SNR but high resolution
Rapid imaging, increased SNR and CNR, reduced motion artifact.
What is the unit of K space?
Inches
Radians per centimeter
Degrees
Radians per meter
Radians per centimeter
Which of the following is a possible cause of shading artifact?
Inhomogeneities in the main magnetic field
A leak in the RF shielding of the scan room
Spin echo sequences
A hemorrhage
Inhomogeneities in the main magnetic field
Which cryogen is commonly used to super cool wires in MRI?
Hydrogen
Liquid helium
Niobium
Alnico
Liquid helium
T/F: During EPI all the lines of K space are filled during one repetition.
True
The anatomy of white matter tracts can be mapped using strong multi-directional gradients in which of the following?
diffusion tensor imaging (DTI)
continuous arterial spin labeling (CASL)
CBV
SWI
diffusion tensor imaging (DTI)
Contrast enhanced MRAs are acquired with all of the following EXCEPT:
Bolus tracking
Fluoro triggering
Test bolus
VENC settings
VENC settings
Determine which of the following parameters would result in the most entry slice phenomenon (i.e. entry slice phenomenon would increase compared to the other options).
Slice 10 out of 20, 400 TR, .7 mm slice thickness
Slice 1 of 20, 3000 TR, .7 mm slice thickness
Slice 1 out of 20, 400 TR, 1.2 mm slice thickness
Slice 10 out of 20, 3000 TR, 1.2 mm slice thickness
Slice 1 of 20, 3000 TR, .7 mm slice thickness
Is the following extrinsic or intrinsic?
Pulse sequence type
Extrinsic
Is the following extrinsic or intrinsic?
T1 recovery time
Intrinsic
Is the following extrinsic or intrinsic?
TR
Extrinsic
Is the following extrinsic or intrinsic?
Flip Angle
Extrinsic
Is the following extrinsic or intrinsic?
T2 decay time
Intrinsic
T/F: Gadolinium chelates are ferromagnetic.
False
T/F: The SNR is enhanced when using local coils.
True
Which of the following are methods of reducing phase ghosting? (Choose all that apply)
Using respiratory compensation techniques
Decrease the TE
Carefully explain the procedure to the patient
Use pre-saturation pulses
Swap phase and frequency
Use “no phase wrap” software
Using respiratory compensation techniques
Carefully explain the procedure to the patient
Use pre-saturation pulses
Swap phase and frequency
Which gradient performs slice selection for sagital slices?
Z gradient
X gradient
Any combination of gradients
Y gradient
X gradient
Which of the following sequence(s)/technique(s) can be used to make vessels appear bright?
Gradient Echo Imaging
Gradient Moment Rephasing
Contrast Enhancement
All of the above
All of the above
T2* decay is faster than T2 decay since it is a combination of which of the following effects?
T2 decay itself
* weighting
Dephasing due to magnetic field inhomogeneities
T1 decay with spin echo
T2 decay itself
Dephasing due to magnetic field inhomogeneities
T/F: Intra-voxel dephasing results in an increase in total signal amplitude from the voxel.
False
Which of the following best describes a use for MR Spectroscopy (MRS)?
To demonstrate perfusion
To aid in brain tumor staging
To show ankle anatomy
To aid in brain tumor staging
Enhanced MR images are evaluated for sensitivity and specificity, where sensitivity is ________ and specificity is ________.
The ability to detect the lesion/the ability to classify the lesion
TR used to evaluate the lesion/TE used to evaluate the lesion
The ability to classify the lesion/the ability to detect the lesion
TE used to evaluate the lesion/TR used to evaluate the lesion
The ability to detect the lesion/the ability to classify the lesion
What are the guidelines for pregnant employees? (Choose all that apply)
Pregnant employees MUST transfer to x-ray once they’ve announced their pregnancy to the MRI department.
No changes to pregnant employees work environment in MRI. Everyone knows that MRI doesn’t use radiation.
Pregnant employees may enter the scan room, but should leave before scanning begins.
Pregnant employees are exempt from scanning and may only do paperwork.
Pregnant employees may enter the scan room, but should leave before scanning begins.
What is the available imaging time using these parameters? R to R 800 ms, trigger window 10%, delay after trigger 4 ms.
800 ms
700 ms
716 ms
688 ms
716 ms
What happens to the alignment of hydrogen protons when placed in an external magnetic field? (Check all that apply)
Slightly more nuclei line up with the main magnetic field than against it.
Nothing until an RF pulse is applied.
The magnetic moments of the nuclei align with or against the main magnetic field.
More nuclei oppose the main magnetic field than line up with the main magnetic field.
Slightly more nuclei line up with the main magnetic field than against it.
The magnetic moments of the nuclei align with or against the main magnetic field.
T/F: Intrinsic parameters are those that cannot be changed because they are inherent to the body’s tissues.
True
Which of the following best describes a remedy for cross excitation?
Excite alternate slices during the acquisition
Use a long tE
Use spin echo sequences
Call the service engineer
Excite alternate slices during the acquisition
Ohm’s law states:
1 T = 10 kG
V = I (R)
B = k (l)
B = H (1+x)
V = I (R)
In which direction does truncation occur? (Choose all that apply)
Phase Axis
Frequency Axis
Anterior to Posterior
Slice Select Axis
Phase Axis
What controls the polarity of a gradient?
The steepness of the slice select gradient
The strength of the main magnetic field
The sharpness of the frequency readout
The direction of the current through the gradient coil
The direction of the current through the gradient coil
Which gradient performs slice selection for coronal slices?
Y gradient
Any combination of gradients
X gradient
Z gradient
Y gradient
The signal from flowing blood within vessels in MRI and MRA relies on:
Third order motion
Fourth order motion
First order motion
Second order motion
First order motion
The following image is displayed in what plane?
Oblique
Axial
Coronal
Sagittal
Axial
Identify the anatomy in the following image.
A
B
C
D
Not Labeled
Large Bowel
Common iliac artery
Small bowel
Ilium
Appendix
Label the anatomy in the image below.
A
B
C
D
E
Not Labeled
Deltoid muscle
Humeral Head
Infraspinatus Muscle
Clavicle Bone
Scapular Spine
Supraspinatus Muscle
Label the anatomy in the image below.
A
B
C
D
E
Not Labeled
Extensor Digitorum Brevis Muscle
Calcaneus
Navicular
Talus
Abductor Hallicus Muscle
Cuboid
Label vessels in the image below.
1
2
3
4
5
Aorta
Right Coronary Artery
Left Anterior Descending Artery
Circumflex Artery
Left Coronary Artery
What pathology is visible in this image?
Prostate cancer
Ovarian cyst
Uterine cancer
Uterine fibroid
Ovarian tumor
Uterine fibroid
Which of these pathologies is visualized in the image below?
Neoplasm
EDH
Abscess
SDH
Ischemic stroke
Ischemic stroke
What pathology is seen in this image?
CAD
Myxoma
Pericardial Effusion
CHF
Pericardial Effusion
Which of the following pathologies is visualized in this image? (choose all correct)
Linear skull fracture
Basilar skull fracture
Ping-pong skull fracture
Epidural hematoma
Depressed skull fracture
Epidural hematoma
Depressed skull fracture
What pathology is seen in this image?
Aortic Aneurysm
CAD
Pericardial Effusion
PE
PE
What pathology is visualized in the following image?
Blow-out fracture
Nasal fracture
Zygomaticomaxillary complex fracture
Dental abscess
LeFort fracture
Zygomaticomaxillary complex fracture
What pathology is visible in this image?
Lymphoma
Liver cancer
Splenic Laceration
Gastric cancer
Lymphoma
What pathology is visible in this image?
Gastric cancer
Splenic Laceration
Lymphoma
Cirrhosis
Gastric cancer
Which of these pathologies is visualized in the image below? (choose all correct)
Edema
Ischemic stroke
ICB
SDH
Edema
ICB
What pathology is seen in this image?
PE
CAD
Pericardial Effusion
Myxoma
Myxoma
What pathology is visible in this image?
Liver cancer
Lymphoma
Splenic Laceration
Gastric cancer
Splenic Laceration
What pathology is seen in this image?
Spina bifida occulta
Meningocele
Myelomeningocele
Meningocele
Which of the following pathologies is visualized in this image? (choose all correct)
Depressed skull fracture
Epidural hematoma
Linear skull fracture
Basilar skull fracture
Ping-pong skull fracture
Depressed skull fracture
What pathology is seen in this image?
Spinal Meningioma
Spina bifida
Spinal Ependymoma
Tethered cord
Spina bifida
What pathology is visualized in the following image?
Dental abscess
Nasal fracture
LeFort fracture
Blow-out fracture
Zygomaticomaxillary complex fracture
LeFort fracture