You can get wheelchair assistance, which helps a lot. You should go you only live once

If you are able to go -go. there may be a time when you are not able to do it.

There are open MRI tests. Also they can sedate you to get through it.

I too have a fear of traveling since my diagnosis. But we need to conquer our fears to have quality of live. Just do it, but do it with a plan😊

Ask your dr he can help out