Which is the most important positioning consideration for an AP scapula projection?
patient is supine
arm is abducted 90 degrees from the body
patient is upright
arm is adducted 90 degrees from the body
arm is abducted 90 degrees from the body
Rationale: Scapula imaging can be performed upright or supine. The arm must be abducted 90 degrees from the side of the body in order to pull the axillary (lateral) border of the scapula and a portion of the scapula free of superimposition of the ribs. In addition, it will help flatten the scapula; it will be positioned more parallel to the plane of the image receptor.
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