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Radiology 122 > Shoulder/scapula/clavicle projections > Flashcards

Shoulder/scapula/clavicle projections Flashcards

1
Q

For all shoulder projections the cassette size is?

A

10x12

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2
Q

For all shoulder projections the SID is (except for AC joints)?

A

40”

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3
Q

For AC joint SID is?

A

72”

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4
Q

For Shoulder AP what is the IR?

A

1” below coracoid process

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5
Q

For Shoulder AP what is the CR?

A

1” below coracoid process

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6
Q

For Shoulder AP what is the collimation?

A

10x12

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7
Q

For Shoulder AP what is the breathing instructions?

A

suspend

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8
Q

For Shoulder AP what is the criteria to be met?

A

external: humeral head in profile
greater tubercle in profile
scapulhumeral joint visualized

neutral: greater tubercle partially superimposed
internal: lesser tubercle in profile

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9
Q

For Shoulder AP Oblique Grashey (glenoid cavity) what is the IR?

A

center to scapulohumeral joint

2” medial 2” inferior to border of shoulder

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10
Q

For Shoulder AP Oblique Grashey (glenoid cavity) what is the CR?

A

perpendicular to IR- 2” medial 2” inferior superolateral border of shoulder

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11
Q

For Shoulder AP Oblique Grashey (glenoid cavity) what is the collimation?

A

8x10

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12
Q

For Shoulder AP Oblique Grashey (glenoid cavity) what is the breathing instructions?

A

suspend

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13
Q

For Shoulder AP Oblique Grashey (glenoid cavity) what is the criteria to be met?

A

glenoid cavity in profile

open joint spaces

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14
Q

For Shoulder Transthoracic Lateral (Lawrence) what is the IR?

A

center surgical neck of humerus

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15
Q

For Shoulder Transthoracic Lateral (Lawrence) what is the CR?

A

Perpendicular to IR- if cannot elevate unaffected shoulder angle CR 10-15 degrees cephalic

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16
Q

For Shoulder Transthoracic Lateral (Lawrence) what is the Collimation?

A

10x12

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17
Q

For Shoulder Transthoracic Lateral (Lawrence) what is the breathing instructions?

A

full inspiration

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18
Q

For Shoulder Transthoracic Lateral (Lawrence) what is the criteria to be met?

A

scapula, clavicle, prox humerus seen

scapula superimposed over thoracic spine

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19
Q

For Shoulder Inferosuperior Axial (Lawrence) what is the IR?

A

edge against shoulder close to neck

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20
Q

For Shoulder Inferosuperior Axial (Lawrence) what is the CR?

A

horizontally through axilla medial angulation of 15-30 degrees

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21
Q

For Shoulder Inferosuperior Axial (Lawrence) what is the collimation?

A

12” by 1” above shoulders

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22
Q

For Shoulder Inferosuperior Axial (Lawrence) what is the criteria to be met?

A

scapulohumeral joint w/o slight overlap
coracoid process anteriorly
lesser tubercle in profile
Ac joint, acromion and acromial end of clavicle projected though humeral head

23
Q

For Shoulder Inferosuperior Axial (Lawrence) what is the breathing instructions?

A

suspend

24
Q

For Shoulder PA Oblique (Scapular Y) what is the IR?

A

center @ level of scapulohumeral joint

25
Q

For Shoulder PA Oblique (Scapular Y) what is the CR?

A

perpendicular to scapulohumeral joint- pt at 45-60 degree angle

26
Q

For Shoulder PA Oblique (Scapular Y) what is the Collimation?

A

12” by 1”

27
Q

For Shoulder PA Oblique (Scapular Y) what is the breathing instructions?

A

suspend

28
Q

For Shoulder PA Oblique (Scapular Y) what is the criteria to be met?

A

humeral head and glenoid cavity superimposed
humeral shaft and scapular body superimposed
acromion projected laterally

29
Q

For Shoulder AP (AC Joint) Pearson Method what is the IR?

A

@ level of AC joints

30
Q

For Shoulder AP (AC Joint) Pearson Method what is the CR?

A

@ level of AC joints

31
Q

For Shoulder AP (AC Joint) Pearson Method what is the Collimation?

A

6x17 (both) or 6x8 (each)

32
Q

For Shoulder AP (AC Joint) Pearson Method what is the breathing instructions?

A

suspend

33
Q

For Shoulder AP (AC Joint) Pearson Method what is the criteria to be met?

A

no rotation or leaning by patient

AC joint seperation

34
Q

For Clavicle AP what is the IR?

A

center to clavicle

35
Q

For Clavicle AP what is the CR?

A

perpendicular to midshaft of clavicle

36
Q

For Clavicle AP what is the breathing instructions?

A

suspend at end of exhalation

37
Q

For Clavicle AP what is the collimation?

A

8x12

38
Q

For Clavicle AP what is the criteria to be met?

A

entire clavicle centered

lateral half of clavicle above scapula

39
Q

For Clavicle AP Axial what is the IR position?

A

center clavicle

40
Q

For Clavicle AP Axial what is the CR position?

A

enter midshaft of clavicle
standing- 15-30 cephalic angle
lordotic- 0-15 cephalic angle
supine-15-30 cephalic angle

41
Q

For Clavicle AP Axial what is the breathing instructions?

A

suspend at end of full inspiration

42
Q

For Clavicle AP Axial what is the collimation?

A

8x12

43
Q

For Clavicle AP Axial what is the criteria to be met?

A

entire clavicle w AC/SC joints

lateral 2/3 of clavicle above ribs

44
Q

For Scapula AP what is the IR?

A

2” above top of shoulders

45
Q

For Scapula AP what is the CR?

A

2” below coracoid process

46
Q

For Scapula AP what is the breathing instructions?

A

slow breathing

47
Q

For Scapula AP what is the collimation?

A

10x12

48
Q

For Scapula AP what is the criteria to be met?

A

lateral scapula free of superimposition

acromion and inferior angle

49
Q

For Scapula Lateral what is the IR?

A

body of scapula perpendicular to IR

50
Q

For Scapula Lateral what is the CR?

A

perpendicular to midmedial border of scapula- patient angled 45-60 degrees

51
Q

For Scapula Lateral what is the breathing instructions?

A

suspend

52
Q

For Scapula Lateral what is the collimation?

A

12” by 1.5 inch above shoulders

53
Q

For Scapula Lateral what is the criteria to be met?

A

lateral/medial scapular border superimposed
no superimposition of scap body on ribs
no superimposition of humerus on scapula

Radiology 122 (18 decks)

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