Clavicle/AC Joints/ Scapula Radiography

Position CR Demonstrates

AP projection (clavicle)

AP- CR perpendicular to midclavical AP 0 degrees- entire clavicle visualized

including both AC and sternoclavicular joints and acromion

AP axial projection (clavicle)

AP axial- CR 15-30 degrees cephalad to midclavicle

Entire clavicle visualized including both AC and sternoclavicular joints and acromion

AP projection (AC joints)

CR is perpendicular to midpoint between AC joints, 1 inch above jugular notch

Both AC joints, entire clavicles and SC joints are demonstrated

AP projection (Scapula)

CR is perpendicular to midscapula, 2 inches inferior to coracoid process, or to level of axilla, and approx 2 inches medial from lateral border

of patient

Lateral portion of the scapula is free of superimposition

Medial portion of the scapula is seen through the thoracic structures

Lateral position/patient erect (Scapula)

CR to midvertebral border of scapula

Entire scapula should be visualized in a lateral position as evidenced by direct superimposition of vertebral and lateral borders. True lateral is shown by direct superimposition of vertebral

and lateral bordersBody of scapula should be in profile, free of

superimpostion by ribsAs much as possible, the humerus should not

superimpose the area of interest of the scapula. Collimate area of interest

Lateral position/ patient recumbent

(Scapula)CR to midscapular lateral border

Entire scapula should be visualized in a lateral position