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The Shoulder. Things to know. 3 views AP, Lateral, Transthoracic 10 x 12 cassette Marker Shield Collimation Measures 12 on AP and Lateral 70 @6. AP External Rotation. 10 x 12 crosswise Place the posterior side of the shoulder to IR center shoulder to center of IR
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Things to know • 3 views AP, Lateral, Transthoracic • 10 x 12 cassette • Marker • Shield • Collimation • Measures 12 on AP and Lateral • 70 @6
AP External Rotation • 10 x 12 crosswise • Place the posterior side of the shoulder to IR • center shoulder to center of IR • Externally rotate arm until the epicondyles are parallel with IR • Hold breath
Seen on Film • The Proximal humerus • 2/3 of clavicle • The upper scapula • The greater tubercle in profile
AP Internal Rotation • 10x 12 crosswise • Same position as external • But rotate the arm internally until the epicondyles are perpendicular to IR • Hold breath
Seen on film • The lesser tubercle in profile
Transthoracic • 10 x 12 lengthwise • Measure 34 • 75@60
Positioning Transthoracic • Place affected shoulder against IR • Raise the good arm over the head • Center the surgical neck to IR • Patient in true lateral position • Breath normally
Seen on film • Lateral view of the proximal half of humerus • No superimposition of other shoulder
The AP and Lateral Projections Cassette size 14 x17 lengthwise One cassette per view Measures 9 70@6 Shield Mark Collimate Hold breath
Part Position for AP • Place patient’s shoulder in contact with table or bucky. • Extend the arm as far as patient is able • Abduct arm slightly and supinate hand until the epi-condyles are parallel with IR
Seen on Radiograph for AP • The entire humerus including both joints • The greater tubercle is seen in profile laterally • lateral and medial epi-condyles in profile.
Part Position for Lateral • Same position as AP • Internally rotate the hand until the epi-condyles are perpedicular with IR
CR Mid-Humerus SID 40
Seen on radiograph for lateral • Entire humerus including both joints • The epi-condyles are superimposed • The lesser tubercle is seen in profile medially.