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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.
An MRI scan uses magnetism and radio waves to build up a picture of the inside of the body. It can show how deeply a tumour has grown into body tissues. For some types of cancer it can tell whether the tissue left behind after treatment is cancer or not. The scanner is a large machine with a doughnut shaped hole.here are some people who cannot have an MRI but the checklist will make sure this is picked up. The scan uses magnetism, so metal will affect it. If you have certain types of metal surgical clips, metal pins or plates or a pacemaker inside your body, you cannot have an MRI scan.