Generally speaking an MRI is superior to a CT Scan in evaluating spine disorders particularly in regards to nerve compression. MRI imaging is preferred to CT scan in examining brain, spinal cord, major nerves and other soft tissues. But at times there are factors where a CT scan will be used. In some cases a CT Scan is required to reveal fine details in the vertebrae. The low percentage of water content in cortical bone is best examined using CT scan imaging if fine details ae required. So best to speak to your consulting physician and radiologist to determine which… Read more »