RAD 110 - Ch 5 Clavicle, AC Joints, & Scapula - Positioning

Clavicle Routine

- AP

- AP Axial

AP Clavicle

What projection is this?

Evaluation Criteria for AP Clavicle

- CR perpendicular

to midclavicle

- Entire clavicle demonstrated

- Four-sided collimation

- Optimal exposure factors

- AP axial

AP Axial Clavicle

What projection is this?

Evaluation Criteria AP Axial Clavicle

- CR 15° to 30° perpendicular to midclavicle

- Entire clavicle demonstrated

- Four-sided collimation

- Optimal exposure factors

- More of clavicle seen above ribs

AC Joints Routine

- AP bilateral w/weights

- AP bilateral w/o weights

AP Bilateral w/weights AC Joints

What projection is this?

AP Bilateral w/o weights AC Joints

What projection is this?

Evaluation Criteria AP Bilateral AC Joints

- CR to midpoint between AC joints

- 72-inch (183-cm) SID

- Both AC joints demonstrated

- No motion

- Optimal exposure factors

- Correct markers visible

- Close collimation evident

Scapula Routine

- AP

- Lateral

AP Scapula

What projection is this?

Evaluation Criteria AP Scapula

- Breathing technique (optional)

- CR to midscapula

- Entire scapula demonstrated

- Lateral border of scapula free of ribs and lungs

- Optimal exposure factors

Lateral Scapula

What projection is this?

Evaluation Criteria for Lateral Scapula

- For body of scapula

- PA: CR to mid-vertebral border

- AP: CR to proximal humerus—2 inches (5 cm) below top of shoulder

- Borders of scapula superimposed

- Free of superimposition by ribs

- Arm elevated to demonstrate scapular body