An MRI defecography uses an MRI machine to gain information about the functioning of the muscles of your pelvic floor in order to understand why you might be experiencing problems with your bowel movements.
Magnetic resonance (MR) defecography is a noninvasive test that uses magnetic resonance imaging to obtain images at various stages of defecation to evaluate how well the pelvic muscles are working and provide insight into rectal function. It is used to help determine the cause of fecal incontinence, constipation, and other conditions such as pelvic organ prolapse that may interfere with a person’s ability to pass stool.
Defecography or evacuation proctography is a very important tool in colo rectal field. It provides very important information regarding the anatomic interplay of various muscles and other structures of the anal canal, rectum , colon , the vagina and the entire pelvic floor during the actual act of defecation. Magnetic Resonance Defecography has been introduced by us for the very first time in the entire state of Karnataka and also in some instances, the entire of South India. It is the most important evaluation test in constipation where a differentiation is to be made between outlet obstruction and colonic inertia ( slow transit ) or a combination of both.
This is necessary as it changes the whole treatment of patients from operation to medical therapy. It is also indicated in patients with Solitary Rectal Ulcer and Rectal Pain and some selected cases of fecal incontinence. It is a very useful tool in the hands of the colo rectal surgeons in dealing with complex patient conditions who are suffering from anterior and posterior pelvic floor disorders.