Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

MRI Imaging and Procedures > Upper Extremity > Flashcards

Upper Extremity Flashcards

1
Q

what do you base your off-sets off?

A

anatomic location of area of interest from isocenter (@120-125 L or R)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

common shoulder indications

A
  • pain
  • rotator cuff tears
  • frozen shoulder
  • mass, lump or bump
  • impingement
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

when an exam is ‘labrum’ related, what does that mean?

A

it includes arthrogram

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

magic angle artifact

A

55 degree oriented to B0

occur on short TE sequences

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

which sequence has high resolution and SNR for evaluating the gleno-humeral articular cartilage?

A

axial PD

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

arthrogram?

A

intra-articular use of gado & saline injection

performed under fluoro

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

what should you include in all humerus scans?

A

radial tuberosity

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

ABER

A

Abduction - External Rotation Position

T1 sequence permits optimal visualization of the ant. inf. labral lig. complex (attaches to labrum)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

humerus common indications

A

mass
lesion
muscle tear
deformity

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

elbow common indications

A

ulnar nerve compression
mass lesions
muscle tear

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

elbow protocol

A

angle slices 20 degree

anterior parallel to collateral ligaments

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

what is the pathology ?

A

scaphoid-lunate ligament tear

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

what is this pathology ?

A

TFCC tear

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

what is the position for wrist exam?

A

supine
elbow and wrist facing up

*use pads to bring wrist close to isocenter

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

shoulder anatomy

A

axial

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

shoulder anatomy

A

sagittal

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

biceps anatomy

A

axial

18
Q

elbow anatomy

A

axial

19
Q

how do you plan coronals for supraspinatus tendon?

A

parallel to supraspinatus

20
Q

how do you plan sagittals for supraspinatus tendon?

A

perpendicular to supraspinatus

21
Q

what causes vessel artifact ?

A

active blood flow while scanning

22
Q

elbow protocols angle?

A

20 degree

ant parallel to collateral ligaments

23
Q

bicep tendon protocols angle?

A

90 degree above head

feet first, supine

24
Q

wrist indications?

A

ganglion cyst
wrist pain
carpal tunnel
triangular cartilage (TFCC tear)
Kienbock’s disease

25
Q

shoulder patient position

A
  • supine
  • external rotation/ thumb up
26
Q

where is the center FOV of shoulder scan?

A

middle of the glenohum joint

27
Q

protocol for coronal (routine shoulder)

A

parallel to supraspinatus

28
Q

protocol for sagittal (routine shoulder)

A

perpendicular to supraspinatus

29
Q

protocol for axial (routine shoulder)

A

cover mid AC joint through humeral head

30
Q

what sequence follows an arthrogram?

A

Fat Sat Suppressed sequences

31
Q

what is the pt injected with in a shoulder arthrogram?

A

lidocaine and .2 ml Gado

32
Q

what diagnosis does an arthrogram used for?

A
  • rotator cuff tears
  • glenoid labral disruption
  • chondral defect
33
Q

pt position for humerus scan

A

immobilization straps and pads
arm in external rotation / neutral thumb up

34
Q

ELBOW: what are valuable to demo joint structures in any plane?

A

volume acquisitions

35
Q

ELBOW [technical issues]
what is used to provide good contrast between boney margins of the joint and synovial fluid?

A

coherent GRE

36
Q

ELBOW [technical issues]
what is necessary to distinguish fat from pathology?

A

pre-sats

37
Q

ELBOW [technical issues]
what is used to maintain high resolution in acceptable scan times?

A

FSE

38
Q

ELBOW [technical issues]
what is close to periphery of bore extra shimming might be needed to max SNR?

A

FOV

39
Q

ELBOW [technical issues]
what is needed to demo the elbow joint?

A

high resolution imaging

40
Q

ELBOW [artifact problems]

A

pt motion (in swimmer/superman position)

pulsation (humeral/ radial vessels: pre-sats placed S and I to the FOV

41
Q

protocol for routine elbow

A

angle slices 20 degree

ant parallel to collateral ligaments

42
Q

ELBOW [FABS position]

A

perpendicular to the radial shaft

MRI Imaging and Procedures (6 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions