The differences between cervical CT and MRI are as follows: 1. Cervical CT: It is mainly used for the diagnosis of cervical spine fracture, dislocation and cervical disc herniation, but its scanning level is relatively small. If the vertebrae are scanned, 2-3 can be scanned, while the intervertebral discs can be scanned in three. 2. MRI: The scanning range is wider and can scan the entire cervical spine, including the seven vertebrae and intervertebral discs. Cervical MRI is not harmful to the human body, there is no radiation, and the patient will not have any effect on the body during the MRI. MRI can clearly show the vertebrae, intervertebral discs and cervical spinal nerves, especially the clarity of the cervical spinal nerve display is much higher than that of CT scan.