A poorly positioned AP axial projection (Stryker method) of the proximal humerus demonstrates the lesser tubercle in profile medially. How was the setup mispositioned to obtain such an image?
a. The humerus was elevated to less than a vertical position.
b. The central ray was angled less than the required 10-degree cephalic angle.
c. The humerus was elevated beyond a vertical position.
d. The distal humerus is tilted laterally.
Question 2
A poorly positioned inferosuperior axial shoulder projection demonstrates the inferior glenoid cavity medial to the lateral edge of the coracoid process. To obtain an optimal projection,
a. increase the central ray to lateral body surface angle.
b. decrease the central ray to lateral body surface angle.
c. decrease the degree of humeral abduction.
d. elevate the patient on a sponge or washcloth.
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