When performing an AP projection of the scapula, where is the central ray directed?

In an AP projection of the scapula, the central ray is directed 5 cm distal to the coracoid process. This specific positioning is essential because it ensures that the entire scapula is well visualized, including the body and the acromion, without excessive distortion or foreshortening.

Targeting this point allows for optimal imaging of the scapular anatomy as it positions the central ray effectively to capture the regions of interest. The placement at this distance is a standardized approach in radiology, which helps in consistently obtaining clear and diagnostic images that facilitate assessment of the scapula.

This precise alignment is crucial for achieving the best possible results in imaging the scapula and aids in assessing various conditions affecting shoulder girdle pathology.