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MRI Procedures & Patho Phys > Mod 2 head face and neck > Flashcards

Mod 2 head face and neck Flashcards

1
Q

Multiple Sclerosis (MS)
Primary Tumor and/or Metastatic disease
AIDS (Toxoplasmosis)
Infarction/Stroke (CVA) / (TIA)
Hemorrhage
Visual Disturbances / Hearing Loss / Tinnitus / Vertigo
Infection
Trauma
Unexplained NeuroSymptoms or Deficit
Pre-Operative Planning –Stryker Brain, Post Op F/U

A

Brain pathology

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2
Q

Head Coil (Quad/HD Multi-Channel Array)
NV Array
Immobilization pads, straps and/or sponges
Ear Plugs
High Performance Gradients (EPI for DWI & Perf)
Power Injector for Perfusion Imaging 6ml/sec

A

Brain imaging equipment

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3
Q

Supine on the MRI Patient Table
Longitudinal Alignment Light Midline
Horizontal Alignment Light at Nasion/Glabella
Utilize a Variety of Pads, Sponges, Blankets etc. in an Effort to Make the Pt. as Comfortable as Possible and isolate them from any cables to avoid burns

No temperature catheters

remove ECG leads and med patches

A

Brain imaging pt position

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4
Q

3 Plane loc Centered to Anatomy in the Longitudinal and Horizontal Axis
ASSET Cal. Scan
SAG T1 FLAIR (SUPERIOR GREY/WHITE DIF) L TO R
AX DWI
AX T2 FSE FS
AX T1 FSE/FLAIR
AX T2 FLAIR
COR T2 FS
PRE AX T1 FSE FS
POST AX T1 FSE FS
POST COR T1 FSE FS

A

Brain scans

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5
Q

Pituitary
Temporal Lobes
IAC’s/Brain Stem for ALL Cranial Nerves
Orbits
ParanasalSinuses

A

small FOV brain imaging

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6
Q

Hyperprolactemia
Cushing’s Disease
Acromegaly
Hypopituitarism
Diabetes Insipidus
Dx’ingand Post SurgF/U of Pit adenomas

A

Pituitary pathology

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7
Q

Epilepsy/ Seizure disorders
Tumors
AVM
Leukodystrophies
Atrophic Processes
Measuring HippocampalVolume (Atrophy in Alzheimer’s/Schizophrenia
Signal changes within the Hippocampus and and Temporal lobes

A

Temporal lobes pathology

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8
Q

Acoustic Neuroma(Vestibular Schwannoma)
7thCranial Nerve
Facial Palsy/Numbness/Doop
HemifacialSpasm
Trigeminal Neuralgia
VERTIGO
NOT DIZZINESS

A

Posterior Fossa

IAC Indications/Pathology

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9
Q

Visual Disturbances
Diploplia
Blurred Vision
Proptosis(Forward protrusion)
Orbital / Ocular mass lesions
Retro-Orbital masses
Optic nerve lesions
Optic nerve Sheath Evaluation of lesions

A

Orbits… Indications/Pathology

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10
Q

Staging Neoplasms
Differentiating Neoplasmsfrom Inflammation
Headaches (Weak DX)
Boney Erosion due to Chronic untreated sinusitis
Abscess

A

Paranasal Sinuses –Indications/Pathology

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11
Q

Staging OropharyngealCarcinoma
Pharyngeal and parapharyngealmasses
Evaluation in Sleep Apnea
Abscess

A

Pharynx

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12
Q

Carcinoma of the Larynx
Reconstructive Assesment
Disorders of the Vocal Cords/Phonation Irregularities
Abscess

A

Larynx

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13
Q

Carcinoma
Detection of other Salivary Gland Masses
Salivary Duct Obstructions
Staging of Neoplasmsand Nodal Involvement

A

Salivary Glands

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14
Q

Suspected Internal MeniscalDerrangement
Lock Jaw
Post Surgical MeniscalEvaluation Due to Progressively Worsening Symptoms
Clicking and Popping
Limited Range of Motion
PAIN

A

TemporomandibularJoints (TMJ)

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15
Q

Thyroid Carcinoma

RetrosternalGoiter

Detecionand characterization of Parathyroid Adenoma

A

Thyroid & Parathyroid

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16
Q

temporal lobe scan coil

A

head coil

quadrature or multi-coil array

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17
Q

posterior fossa

internal auditory meatus

coil

A

head coil

quadrature or multi coil array

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18
Q

pituitary fossa

coil

A

head coil

quadrature or multi coil array

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19
Q

orbits coil

A

small surface coil for blobe and orbit

quadrature head or multi coil array

20
Q

paranasal sinuses

coil

A

head coil

quadrature or multi coil array

21
Q

pharynx

coil

A

anterior neck/volume neck coil for cervical nodal involvement

head coil

quadrature or phased array for pharyngeal area and base of skull

22
Q

larynx coil

A

anterior neck coil

volume neck coil

23
Q

thyroid/parathyroid coil

A

anterior neck coil

volume neck coil

24
Q

parotid salivary glands coil

A

quadrature or multi array head coil

25
Q

submandibular salivary glands coil

A

anterior neck coil

volume neck coil

26
Q

temporomandibular joint coil

A

dual three inch coils

multi array TMJ coils

27
Q

vascular imaging coil

A

quadrature or phased array head coil

28
Q

optional protocols

SAG SE T1

AX SE/FSE T2

COR SE/FSE T1

COR 3D incoherent (spoiled) GRE T1

AX/COR IR-FSE T2

A

temporal lobe scans

29
Q

SAG SE T1 or GRE T2

AX SE/FSE T1

AX SE/FSE T1 w/contrast

additional scans

COR SE/FSE T1 w wo contrast

3D incoherent (spoiled) GRE T1 w wo contrast

A

posterior fossa

internal auditory meatus

scans

30
Q

AX FSE T2

COR FSE T2

3D T2 or GRE T2*

A

high res techniques for posterior fossa

internal auditory meatus

31
Q

COR SE/FSE T1 w wo contrast

SAG SE/FSE T1 w wo contrast

3d INCOHERENT (SPOILED) GRE T1 w wo contrast

AX SE/FSE T1 w wo contrast

A

pituitary scans

32
Q

SAG SE/FSE T1

AX SE/FSE T1 or T2

COR SE/FSE T2 or STIR

COR/AX SE/FSE T1

A

orbits scans

33
Q

SAG SE T1

COR SE/FSE T1

AX SE/FSE T1

COR SE/FSE PD/T2

A

paranasal sinus scans

34
Q

AX SE/FSE PD/T2

SAG SE?FSE PD/T2

A

pharynx scans

35
Q

SAG SE/FSE T1/T2

AX SE/FSE T1

COR SE/FSE T1

AX/COR SE/FSE PD/T2

fast incoherent (spoiled) GRE/EPI T1

A

larynx scans

36
Q

COR SE/FSE T1

AX/COR SE/FSE T1

AX/COR SE/FSE PD/T2

A

thyroid/parathyroid scans

37
Q

SAG SE T1

COR SE/FSE T1

AX SE/FSE T1

AX SE/FSE PD/T2

SS-FSE/FSE T2

A

salivary glands scans

38
Q

AX SE/FSE T1 mouth closed

SAG T1 mouth closed

SAG T1 mouth open

COR T1

SAG FSE/SS-FSE/EPI mouth opening and closing

3D incoherent (spoiled) GRE/FSE T1

A

TMJ scans

39
Q

SAG SE T1 localizer

3D TOF or PC

A

vascular brain scans

40
Q

D TOF-MRA

COR coherent GRE for localizer

AX 2D TOF-MRA thin slices

3D coherent GRE T2* if no MRA software

A

vascular neck scans

41
Q

gadolinium enhancing lesions will show as hyperintense. can be extremely useful for demonstrating meningeal enhancement

both enhancing lesion and edema are well demonstrated

A

T2 FLAIR

42
Q

provide excellent G/W contrast particularly in pediatric pt and for all pt when imaging at 3T

A

T1-IR

43
Q

provide excellent G/W contrast as well as greatly reduced flow artefacts due to very short TE

A

Spoiled GRE

44
Q

very useful particularly when imaging pts who are unable to remain motionless for extended periods of time

A

motion resuctoin techniques

PROPELLER

45
Q

useful when very thin contiguous slices are required (imaging the IAC’s)

when acquired in an isotropic fashion image data may be retrospectively into multiple planes

A

3D or volume imaging

46
Q

may be resuced by increasing the rcvr bandwidth

reducing slice thickness

avoiding GRE sequences when possible

A

metal artefacts from dental work

MRI Procedures & Patho Phys (5 decks)

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