The appropriateness of the MRI study must be discussed, in person or via phone call, between a cardiac radiologist, as determined by Paul Leslie, M.D., and the requesting physician. The discussion should include consideration of alternative imaging modalities and diagnostic quality of MRI imaging of requested body region given implanted device(s). The requesting physician is then responsible for discussing with the patient and/or their medical proxy the reasoning for the determination, based on the final decision made by a radiologist.