MRI of the Pelvis/Endorectal Region with Intravenous Contrast
An MRI uses magnetic imaging and intravenous contrast to examine the pelvis, rectum, and nearby tissues for disease or structural abnormalities.
["This scan provides detailed images of the pelvic and rectal region and may help diagnose or stage several conditions."]
Key facts at a glance
- LOINC
- 80585-3
- Short code
- MR Pelvis Endorectal W contr IV
- Synonyms
- MR Pelvis Endorectal W contr IV
- Category
- liver
- Sample
- serum
- Container
- Red-top tube (SST)
- Units
- N/A
- Fasting
- false
- Population
- adult
- Sex
- all
- Age range
- 18–65 years
- Method
- mr
- Specimen volume
- 5 mL
- Stability
- Room temperature: 4h, Refrigerated: 24h, Frozen: 7d
- Hemolysis max
- 500
- Lipemia max
- 1000
- Icterus max
- 500
- TAT
- 4–24 hours
- Order
- routine
What is this test?
This is an MRI scan of the pelvis and endorectal region performed with intravenous contrast, usually a gadolinium-based dye. It produces detailed images of the rectum, pelvic organs, and surrounding tissues without using radiation.
Why might I need this test?
The test may be used to investigate rectal or pelvic symptoms, evaluate a suspicious mass, assess inflammation or infection, and determine the extent of a known condition. It can also help guide treatment planning and, in some cases, assess whether a tumor can be treated with surgery.
How is the test performed?
You will lie on a table that moves into the MRI scanner. The imaging team may use an endorectal coil or another internal marker, depending on the protocol, and will give intravenous contrast through a vein in your arm. The scan usually takes 30 to 60 minutes, although the exact time varies.
How do I prepare for the test?
Follow the facility's instructions about eating, drinking, and bowel preparation. Tell the imaging team if you have metal implants, a pacemaker, prior contrast reactions, kidney disease, or may be pregnant. You may need to change into a gown and may be asked to empty your bowel before the scan.
Clinical interpretation
How abnormal results are interpreted and what conditions they suggest.
Abnormal findings may indicate a rectal or pelvic tumor, inflammation, infection, an abscess, or another structural problem. MRI can show the location and extent of disease and may help determine whether a tumor has spread into nearby tissues. A radiologist will interpret the images, and your clinician will explain the findings in the context of your symptoms and other tests.
Short name
Pelvic/endorectal MRI with IV contrast
Frequently asked questions
Does this MRI use radiation?
What is the contrast material used for the scan?
Will the endorectal part of the scan be uncomfortable?
Sources
- 1
- 2Lab Tests OnlineSource
- 3
Click any link to access the full source. PubMed Central (PMC) links provide free full-text access.
This information is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment.
This content is for general informational and educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the guidance of a qualified healthcare provider with any questions you have about a medical condition, and never disregard professional medical advice or delay seeking it because of something you read here.
If you think you may have a medical emergency, call your local emergency number or go to the nearest emergency department immediately.
Medically reviewed by WellAlly Editorial Team Last reviewed August 16, 2026. · Read our editorial policy