Unit 3 Image Identification and Eval

AP Shoulder (Internal Rotation)

• Lesser tubercle in profile and pointing medially

• Outline of greater tubercle superimposing humeral head

• Greater amount of humeral overlap of glenoid cavity than in external or neutral

Respiration: suspended

kVp: 85, mAs 10

AP Shoulder (External Rotation)

• Greater tubercle in profile on lateral aspect of humerus

• Outline of lesser tubercle

• Scapulohumeral joint visualized w/ slight overlap of humeral head on glenoid cavity

AP Shoulder (Neutral Rotation)

• Greater tubercle partially superimposing humeral head

• Humeral head in profile

• Slight overlap of humeral head on glenoid cavity

Respiration: suspended

kVp: 85, mAs 10

AP Shoulder - Grashey Method

• Open joint space between humeral head and glenoid cavity

• Glenoid cavity in profile

Respiration: suspended

kVp: 85, mAs 10

Superoinferior Axial Shoulder

• ACJ through humeral head

• Lesser tubercle in profile

• Coracoid process projected above clavicle

Respiration: suspended

kVp: 60, mAs 8-15

PA Oblique Shoulder - Scapular Y

• Humeral and scapular bodies superimposed

• No superimposition of scapular body over bony thorax

• Acromion projected laterally and free of superimposition

Respiration: suspended

kVp: 85, mAs 18h

AP Scapula

• Scapular detail through the superimposed lung and ribs

• Lateral portion of the scapula free of

  superimposition from the ribs

Respiration: suspended

Lateral Scapula (RAO/LAO)

• No superimposition of humerus on scapula

• No superimposition of scapular body on the ribs

Lateral Scapula (RPO/LPO)

• No superimposition of humerus on scapula

• No superimposition of scapular body on the ribs

AP Clavicle

• Entire clavicle along with AC & SC joints

• AP will appear more diagonal than the axial

Respiration: suspend at exhalation

AP Axial Clavicle

• Entire clavicle along with AC & SC joints

• Clavicle more horizontal as compared with the AP

Respiration = suspend at full inspiration

Transthoracic Lateral (Lawrence Method)

• Scapula, clavicle, and proximal humerus seen through the lung field

• Scapula superimposed over the thoracic spine

Inferosuperior Axial Lawrence Method

• Scapulohumeral joint with slight overlap

• Coracoid process, pointing anteriorly

What kind of dislocation is this?

Posterior because head is beneath the acromion

What kind of dislocation is this?

Anterior because head is beneath the coracoid process

Tangential Supraspinatus “OUTLET” NEER method

• Humeral head projected below the AC joint

• Humeral head and AC joint with bony detail

What does the Tangential Supraspinatus “OUTLET” NEER method demonstrate?

Posterior surface of acromion

Demonstrates: scapular body
Arm Position: arm on head

Demonstrates: acromion and coracoid
Arm Position: post hand on post thorax

Demonstrates: scapular body
Arm Position: Grasping opposite shoulder