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MRI is excellent for looking at scar tissue. MRI is able to distinguish between scar tissue and recurrent tumors. Therefore, breast MRI can evaluate a significant change in the lumpectomy site. It can determine how much cancer has spread beyond the surgical site after a breast biopsy or lumpectomy.
MRI is used to diagnose a variety of disorders, such as strokes, tumors, aneurysms, spinal cord injuries, multiple sclerosis and eye or inner ear problems, according to the Mayo Clinic. It is also widely used in research to measure brain structure and function, among other things.What makes MRI so powerful is, you have really exquisite soft tissue, and anatomic, detail, said Dr. Christopher Filippi, a diagnostic radiologistat North Shore University Hospital, Manhasset, New York.iffusion MRI. This form of MRI measures how water molecules diffuse through body tissues. Certain disease processes â such as a stroke or tumor â can restrict this diffusion, so this method is often used to diagnose them, Filippi said. Diffusion MRI has only been around for about 15 to 20 years, he added.