Hello and thanks for your post,

I am afraid this is a question that you will have to ask your gastroenterologist.

Often both an MRI and a CT scan with contrast are requested to get the maximum amount of information about a patient. I am not sure what your situation is but usually tests are organised for a reason. Doctors have got to weigh up the benefits of getting as much information as possible to be able to get the right diagnosis against a small radiation exposure.

A CT scan is usally the first scan that is done and then if they need more information then they request an MRI.

I can understand your concern if you have had other CT scans before but do talk it over with your doctor who will be able to advise you further.

I hope this helps.

All the best,

Catherine