A Left Lateral Cervicothoracic Projection (Twining Method) Demonstrates the Right

Multiple Choice

A left lateral cervicothoracic projection (Twining method) demonstrates the right and left articular pillars and zygapophyseal joints without superimposition. The humerus demonstrating the least amount of magnification is situated anterior to the vertebral column. How should the positioning setup be adjusted to obtain an optimal projection?

A) Increase the degree of right shoulder depression.
B) Position the vertebral column parallel with the IR.
C) Rotate the right side of the patient anteriorly.
D) Rotate the right side of the patient posteriorly.