CAMRT Radiography Practice Exam

What structure does the "inlet" projection of the pelvis primarily show?

1. The femoral head

2. The pelvic ring

3. The sacrum

4. The acetabulum

The correct answer is: The pelvic ring

The "inlet" projection of the pelvis is primarily used to visualize the pelvic ring. This particular projection provides a view that allows for assessment of the overall stability of the pelvis, particularly in the context of trauma. By examining the pelvic ring, it helps in identifying any fractures or displacements that may compromise the integrity of the pelvis. While other structures like the femoral head, sacrum, and acetabulum may be partially visible, the primary focus and utility of the inlet projection centers around the pelvic ring itself. The importance of this view lies in its role in helping clinicians determine the extent of pelvic injuries and guide further management.