Both CT and MR scan are performed for the diagnosis of neurological conditions.
The indications for CT scan and MR scan are different. The CT scan is using X-rays for the imaging, therefore it is not recommended for the pediatric population and for pregnant women. The indications for CT scan are in cases of spinal trauma (vertebral fractures).
The MR is based on magnet and radio waves, and not radiation, so it is safer for use. The MR scan is better for the detection of spinal cord tumors or disc herniation, especially in the neck. It is also better for bone marrow involvement in metastatic diseases.
Sometimes it is necessary to combine both CT and MR scan for accurate diagnosis. Consulting before the imaging is performed I will try to advise which imaging modality will be suitable for the medical condition. After the scan is performed I will do my best to reach the correct diagnosis and for explaining the report.