Get a doctor's order for very specific imaging. You can do this imaging locally, and your primary care doctor can order it for you. The imaging needs to be of your skull and cervical spine. Most neurosurgeons who understand CCI/AAI want dynamic imaging, such as:
- Upright MRIs with flexion, extension, and rotational views; or,
- Supine CT scans with flexion, extension, and rotational views
One of the expert neurosurgeons now prefers 3T supine MRIs. These are much easier to access and more likely to be covered by insurance. You will find that different neurosurgeons will have slightly different preferences for imaging. They update their preferred imaging as knowledge advances, so you'll need to call their offices to verify which imaging they prefer.