The frequency of retakes was highest in which body region?

• A. Hips and pelvis
• B. Extremities
• C. Chest
• D. Spine

Answer: (D)

Imaging the spine requires precise positioning and minimal motion across multiple views. A perfect lateral view, for example, depends on true side alignment with shoulders and hips out of the way, and AP/PA and oblique views must include all vertebral levels without rotation. Even small errors in centering, angulation, or motion can obscure vertebral bodies, intervertebral spaces, or foramina, making the image nondiagnostic and prompting a retake. The spine also has variable anatomy along its length and overlapping structures (shoulders, ribs, bowel gas) that add complexity and a greater chance of needing another exposure to achieve a usable study. Other regions tend to have more forgiving positioning and clearer landmarks, so they typically require fewer retakes.