Magnetic Resonance Enterography, often abbreviated as MRE, is a non-invasive medical imaging technique used to visualize the small intestine and parts of the large intestine, providing valuable information for diagnosing and monitoring various gastrointestinal conditions. This diagnostic tool is particularly useful for assessing inflammatory bowel diseases (IBD), such as Crohn's disease, as well as other conditions affecting the digestive tract. If you are experiencing digestive issues or have been diagnosed with a gastrointestinal condition, consult with your healthcare provider to determine if MRE is the right imaging technique for your specific situation.

Read this article to learn more about what Magnetic Resonance Enterography is and what to expect when undergoing this procedure.

Also Read: Computed Tomography/ CT Scan: Purpose, Procedure, Uses, And Side Effects

What Is Magnetic Resonance Enterography?

Magnetic Resonance Enterography is a specialized form of magnetic resonance imaging (MRI) that is designed to capture detailed images of the small intestine. It employs a combination of a powerful magnetic field and radio waves to create high-resolution cross-sectional images of the gastrointestinal tract. Unlike conventional imaging methods, MRE provides excellent soft tissue contrast, making it an ideal choice for evaluating the intestinal structure, inflammation, and complications associated with gastrointestinal disorders.

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Why Is MRE Performed?

MRE is chiefly used to diagnose and monitor conditions that affect the small and large intestines, including:

Inflammatory Bowel Disease (IBD): MRE is highly effective in diagnosing and assessing the activity and extent of IBD, such as Crohn's disease and ulcerative colitis.

Tumours and Polyps: MRE can detect tumours, polyps, and other abnormal growths in the intestines.

Obstructions: It helps identify bowel obstructions, strictures, or adhesions that may be causing digestive problems.

Fistulas and Abscesses: MRE can visualize the presence of fistulas (abnormal connections between organs) and abscesses (collections of infected fluid) within the gastrointestinal tract.

Malabsorption Syndromes: It aids in the evaluation of conditions that affect nutrient absorption, such as celiac disease or tropical sprue.

Also Read: Gastric Function Test: Why Is It Done? Test Types, Results And Disadvantages

What To Expect During MRE?

Preparation

Before undergoing an MRE, the healthcare provider will provide specific instructions on how to prepare for the procedure. Typically, you will need to fast for several hours before the scan to ensure a clear view of your digestive system. In some cases, you may also be required to consume a contrast agent to enhance the visibility of the intestines. You will be asked to wear a hospital gown, and you may need to remove any metal objects, as they can interfere with the magnetic field.

Procedure

MRE is performed in a radiology department, where you'll be asked to lie on a table that slides into the MRI machine. You may receive an intravenous (IV) line to administer the contrast agent. The radiologic technician will ensure you are comfortable and positioned correctly before the scan begins.

Scan

During the MRE, you will hear loud knocking or tapping noises as the MRI machine creates images. It's important to remain still throughout the procedure to obtain clear images. You may also be asked to hold your breath briefly during specific scans.

Contrast Agent

If you are given a contrast agent, you may experience a warm sensation as it is injected. This is a normal reaction and typically lasts only a few moments.

Duration

An MRE typically takes about 30 to 60 minutes, but the duration can vary based on the specific study and the patient's condition.

After The Procedure

Once the MRE is complete, you can usually resume your normal activities immediately. There are no radiation risks associated with MRI, making it a safe and reliable diagnostic tool. Your doctor will review the images and provide you with a diagnosis or treatment plan based on the findings.