Why is the posteroanterior (PA) rather than the AP projection recommended for a small bowel series?

Question

Quizplus · Accepted Answer

The PA projection for small bowel series produces better separation of loops of small intestine, allowing for better visualization of the entire small intestine. It also reduces radiation dose to radiosensitive organs (such as the reproductive organs) and places the small intestine closer to the image receptor for improved image quality. While patient comfort is indeed important, it is not the primary reason for choosing the PA projection over the AP projection.

Why Is the Posteroanterior (PA) Rather Than the AP Projection