MRI Defecography

What is MRI Defecography?

MRI defecography is a specialized magnetic-resonance scan that captures real-time video of the rectum, pelvic floor muscles, and nearby organs while you gently push as if having a bowel movement. No scopes, no X-rays—just detailed pictures that show how each part works together or fails to do so.

• Chronic Constipation: Rule out mechanical blockage or muscle discoordination
• Fecal Incontinence: Identify tears or nerve weakness
• Pelvic Organ Prolapse: See if bladder, uterus, or rectum has dropped
• Rectal Intussusception: Detect telescoping of the rectum into itself

• Non-invasive Imaging—no scopes, no needles
• No Radiation Exposure—safe for repeated follow-ups
• Detailed Soft-tissue Visualization—see muscles, fat, and organs in one scan
• Real-time Functional Assessment—observe what happens when you actually push

Pre-requisites

• Light breakfast or clear liquids only 4 hours before scan
• Enema or suppository night before to empty rectum (advised, not mandatory)
• Bring loose clothing and remove all metal objects

Best Time to Take the MRI Defecography

Schedule during a non-menstrual week if possible; morning slots reduce waiting time.

Eligibility

• Adults of all ages; children by special arrangement
• Not suitable for patients with MRI-incompatible implants or severe claustrophobia

Procedure for Taking a MRI Defecography

1. Change into gown; empty bladder
2. Lie on open MRI table or sit on commode-style seat
3. A small gel-filled tube (contrast) is gently inserted into rectum
4. You push, rest, squeeze per technician’s cues while scanner records 20–30 seconds
5. Total time: 35–45 minutes

Caution Before Taking the Test

• Inform staff of pregnancy, kidney disease, or claustrophobia
• Bring a list of current medications

• Safe: No radiation or known long-term risks
• Non-invasive: No needles or scopes
• Limitations: May miss very small tears; not suitable if you have non-MRI-safe implants (e.g., some pacemakers)