Which coil is used for spine, abdomen, and pelvis MRI?

• A. Head coil
• B. Body coil
• C. Surface coil
• D. Gamma camera

Answer: (B)

When you’re imaging large regions like the spine, abdomen, and pelvis, you need a coil that can cover a wide area and provide a uniform RF field across that whole region. The body coil is a large volume coil designed to transmit and receive signals over the torso, giving consistent signal and coverage from the lower spine through the pelvis. That broad, uniform field is essential for obtaining reliable, homogeneous images of these deep and extensive structures.

A head coil is specialized for the brain and neck, offering high signal in a small, restricted area. A surface coil delivers high signal for tissues near its surface but only over a limited depth and a small field of view, so it doesn’t adequately cover the spine, abdomen, or pelvis. A gamma camera is used in nuclear medicine, not MRI. Therefore, the body coil is the best choice for spine, abdomen, and pelvis MRI.