When using a 30 × 35 cm IR,where should the CR enter the patient for an AP projection of the lumbar spine?

Question

Quizplus · Accepted Answer

The CR should enter the patient at a level 1 $ \frac{1}{2} $ inches superior to the iliac crest in the midline of the patient for an AP projection of the lumbar spine. This ensures that the entire lumbar spine is captured on the image. Option A is not high enough and would result in missing the upper lumbar vertebrae, while option C is not correct as the sacrum is not part of the lumbar spine. Option D is incorrect as the 30 × 35 cm IR is appropriate for lumbar spine images.

When Using a 30 × 35 Cm IR,where Should the CR