Which projection and/or position of the abdomen is recommended for demonstrating the prevertebral region of the abdomen?

Question

Quizplus · Accepted Answer

The dorsal decubitus position is recommended for demonstrating the prevertebral region of the abdomen because the gas and fecal material are located posteriorly in the abdomen, allowing for better visualization of the prevertebral region with less superimposition. The AP supine and AP erect projections would not visualize this region as well due to increased superimposition of the gas and fecal material. The left lateral decubitus position would not be effective for demonstrating the prevertebral region as this region is located anteriorly in the abdomen.

Which Projection And/or Position of the Abdomen Is Recommended for Demonstrating