File 5 Flashcards

1
Q

Which is the most independent factor of SUV in PET?

A) Patient to detector distance
B) Body weight
C) Source half life
D) Administration activity
E) Measured Concentration in tissues

A

E) Measured Concentration in tissues

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2
Q

What type of motion artifact before and after images of mammography:

A) Motion
B) Inhomogeneity

A

A) Motion

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3
Q

Young patient with vaginal bleeding, transvaginal US showed crown rump length 9 mm and no fetal heartbeat, and medium size subchorionic hematoma. The reason why heartbeat couldn’t be detected?

A) Do transabdominal US to detect fetal heart
B) Early pregnancy
C) Non-viable fetus
D) Due to presence of subchorionic bleeding

A

C) Non-viable fetus

CRL: → > 6mm, there should be fetal heartbeat

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4
Q

Pregnant in 2 weeks was exposed to radiation, the likely effect on fetus is?

A) Retardation
B) Anomalies
C) Cancer
D) Death of fetus

A

D) Death of fetus

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5
Q

Female patient presented with breast lesion, what is the next step?

A) Annual screening
B) Ultrasound of breast

A

A) Annual screening

Breast within breast, → breast hamartoma, → BIRADS II → Annual screening.

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6
Q

Which is true regarding normal appearance of breast in pregnant, on the second trimester?

A) Breast fat is hyperechoic in ultrasound
B) Fibroglandular tissue is radiolucent
C) Cooper ligament appears as linear hyperechoic
D) Ducts are normally seen.

A

C) Cooper ligament appears as linear hyperechoic

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7
Q

The best MRI sequence to evaluate pigmented villonodular synovitis?

A) STAIR
B) T1
C) T2
D) Gradient

A

D) Gradient

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8
Q

Patient with history of trauma, CT shows paracolic gutter fluid/contrast, what is the most likely diagnosis?

A) Injury of the dome of the urinary bladder
B) Injury of anterior wall of the urinary bladder
C) Injury of the base of the urinary bladder
D) Injury of the posterior wall of the urinary bladder

A

A) Injury of the dome of the urinary bladder

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9
Q

Fetal head ultrasound?

A) Superior sagittal sinus
B) Inferior sagittal sinus
C) Straight sinus
D) Transverse sinus

A

A) Superior sagittal sinus

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10
Q

Patient with right hip replacement, CT picture showed metallic artifact, how to reduce it:

A) Increase slice thickness
B) Reconstruction kernel

A

A) Increase slice thickness

Aka (thin slices)
or (increase kVp)
or (remove it)

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11
Q

The mass number of an atom is the number of:

A) Neutrons in the nucleus
B) Protons in the nucleus
C) Protons, electrons, and neutrons
D) Protons and neutrons

A

D) Protons and neutrons

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12
Q

The primary purpose of a collimator in nuclear medicine is to?

A) Provide spatial localization.
B) Reduce the count rate from patient
C) Protect the crystal

A

A) Provide spatial localization.

التحديد المكاني

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13
Q

Which separate the right and left hepatic lobes?

A) Middle of the gallbladder fossa.
B) Falciform Ligament.
C) Right and left portal veins.
D) Left hepatic vein.

A

A) Middle of the gallbladder fossa.

and Middle hepatic vein

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14
Q

Left lower lobe segments?

A) Superior, anteromedial, lateral, and posterior
B) Superior, lateral, medial, anterior, and posterior
C) Superior, lateral, anterior, inferior, and posterior

A

A) Superior, anteromedial, lateral, and posterior.

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15
Q

Adrenal lesion protocol?

A) 100 kVp, 3 mm, ROI encompassing all of the lesion
B) 80 kVp, 3mm, and ROI of two third of the lesion
C) 100 kVp, 1mm, and ROI of one third of the lesion
D) 120 kVp, 3mm, and ROI of two third of the lesion

A

D) 120 kVp, 3mm, and ROI of two third of the lesion

ROI= Region of Interest

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16
Q

Patient, with previous 3 weeks surgical history of renal transplant with flank pain, fatigue, and decreased urine output. Nuclear showed preserved perfusion and persistent cortical uptake, what is the most likely diagnosis?

A) Acute rejection
B) Chronic rejection
C) Urine leak
D) Acute tubular necrosis

A

D) Acute tubular necrosis

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17
Q

For placement of IVC filter?

A) At level of renal veins
B) Below renal veins

A

B) Below renal veins

18
Q

A 40-year-old, with mammogram demonstrates a popcorn calcification, what is the BIRADS?

A) BI-RADS 1
B) BI-RADS 2
C) BI-RADS 3
D) BI-RADS 4

A

B) BI-RADS 2

pop-corn calcification → BI-RADS 2 → Annual screening.

19
Q

A 17-year-old with shoulder pain. X-rays shows geographic lucent lesion with sclerotic margin at the greater tuberosity. MRI showed septation and large edema?

A) Chondroblastoma
B) Giant cell tumor
C) Osteoblastoma
D) Geodes

A

A) Chondroblastoma

Chondroblastomas are well-defined lytic bone lesions with geographical bone destruction and thin sclerotic margins.

20
Q

A 25-year-old female referred as a case of right breast mass. Next proper investigation is?

A) Bilateral breast US.
B) Contrast enhanced MRI.
C) Clinical examination and reassurance for F/U.
D) Mammography

A

A) Bilateral breast US.

21
Q

Man with infertility underwent embolization, in which vessel the catheter is passed distally?

A) Left renal vein
B) Left gonadal vein
C) Left internal iliac vein
D) Left innominate vein

A

B) Left gonadal vein

22
Q

A case of trauma. CT is requested for mediastinal hematoma, what is the proper protocol?

A) Pre and post contrast CT
B) Angiography
C) Serial chest radiograph

A

CT of the chest with pre and post contrast (A).

23
Q

3-year-old patient presented with loss of red-light reflex. CT scan was done, what is the diagnosis?

A

A) Retinoblastoma

24
Q

Patient presented to ER following trauma. NECT of the brain showed extra-axial hypodense lesion on the medial part of left temporal lobe
(bone window wasn’t provided to assess bone changes). What is the diagnosis?

A) Subdural hematoma
B) Arachnoid cyst
C) Left sphenoid dysplasia

A

B) Arachnoid cyst

25
Q

Patient with trauma and injury to anterior inferior iliac spine what is the muscle affected?

A) Rectus femoris muscle
B) Sartorius

A

A) Rectus femoris muscle

26
Q

Which of the following favor hair-on-end appearance over sunburst periosteal reaction?

A) Thalassemia
B) Ewing sarcoma
C) Osteosarcoma

A

A) Thalassemia

27
Q

Spigelian hernia defect in?

A) Internal oblique and transversus abdominis muscles
B) Rectus muscle
C) Rectus muscle and external oblique muscle
D) Aporonosis between external oblique and transverse abdominal muscle

A

A) Internal oblique and transversus abdominis muscles

28
Q

Regarding stochastic effect?

A) Has no threshold
B) Result in cell killing
C) Dependent of the radiation dose

A

A) Has no threshold

29
Q

Patient with upper lip and lower eyelid sensation loss where is the lesion?

A

A) Foramen rotundum (maxillary nerve)

30
Q

In the following ultrasound image where is the lesion located?

A) Skin
B) Intraductal
C) Parenchymal
D) Subcutaneous

A

A) Skin

31
Q

Most sensitive cells to radiation?

A) Erythrocytes
B) Erythroblasts
C) Hepatoblasts
D) Myocytes

A

B) Erythroblasts

32
Q

T1 weighted imaging is obtained by?

A) Short TR and short TE
B) Long TR and long TE
C) Short TR and long TE
D) Long TR and short TE

A

A) Short TR and short TE

33
Q

An MRI FSE pulse sequence decrease the overall acquisition time compared to a SE pulse sequence by using which one of the following?

A) Short TE
B) Short TR
C) Multiple phases encoding gradient variation per TR

A

C) Multiple phases encoding gradient variation per TR

34
Q

What interaction is the primary source of scattered radiation in diagnostic radiography?

A) Compton
B) Coherent/Rayleigh
C) Annihilation
D) Photoelectric

A

A) Compton

35
Q

Which of the following will increase the entrance skin dose to the patient during a fluoroscopically guided procedure?

A) Using lower frame rate pulse fluoroscopy
B) Increase the skin to image receptor distance
C) Increasing the amount of Copper (Cu) filtration in the beam
D) Increasing the source to patient distance (SOD)

A

B) Increase the skin to image receptor distance

36
Q

Which of the following EM waves has the highest frequency v?

A) Gamma rays
B) Ultraviolet
C) Green laser
D) Red laser

A

A) Gamma rays

(Dr.Khaled Al-Yousef)

37
Q

A higher intensity MRI signal is produced by?

A) Long T1, long T2
B) Long T1, short T2
C) Short T1, long T2
D) Short T1, short T2

A

C) Short T1, long T2

38
Q

Positron camera detect?

A) Annihilation photons in coincidence
B) Positrons of the same energy in coincidence
C) Positron and electrons in coincidence
D) Photons of different energies in coincidence

A

A) Annihilation photons in coincidence

39
Q

The ratio of heat to X-rays production in a typical diagnostic x-ray tube target is about?

A) 10:90
B) 50:50
C) 1:99
D) 99:1

A

D) 99:1

(Dr.Khaled Al-Yousef)

40
Q

US image provided of coronal neonatal head brain showed cystic lesion bilaterally, what is it?

A) Blake cyst
B) Cystic PVL
C) Periventricular cyst
D) Conall cyst

A

B) Cystic PVL

41
Q

Pediatric patient with hypoglycemia, brain MRI done:

A) Ectopic posterior pituitary gland
B) MRI artifact (Central point artifact)
C) Middle cerebral artery aneurysm

A

A) Ectopic posterior pituitary gland

42
Q

Fetal head ultrasound (A sagittal view provided):

A) Superior sagittal sinus
B) Inferior sagittal sinus
C) Straight sinus
D) Transverse sinus

A

A) Superior sagittal sinus