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Computed Tomography

Enterography Scan 

What is CT Enterography?  CT Enterography is a special type of Computed tomography (CT) imaging performed with oral contrast material to produce images of the small intestine.   A CT Scan is sometimes referred to as a CAT Scan which is a noninvasive medical test to diagnose medical conditions. A CT Scan combines special x-ray equipment with sophisticated computers to produce multiple cross sectional images of the inside of the body.  

How do I prepare for this Test?  Please wear comfortable, loose fitting clothing to your exam.  You may be asked to change into a hospital gown for your comfort.  You must not eat or drink anything for 2 hours prior to your exam.  You may take your daily medications with a small amount of water.  Please bring a list of all medications and allergies.  We will make a copy of it if necessary. Please report to the Outpatient Registration Department 1 hour prior to your scheduled exam time. Outpatient Registration and Radiology Departments are located on the first floor of Beverly Hospital, Lahey Outpatient Center, Danvers and Addison Gilbert Hospital.  The technologist will greet you in the Radiology Department and assist you in preparation for the exam.  You will receive three (3) 450 oz. bottles of oral contrast to drink every 15 minutes. This oral contrast is used to highlight your small intestine.  You will be allowed to use the bathroom.
What to Expect During the CT Enterography?  You will be required to answer questions that our Technologist will review with you. The technologist will position you on the table, lying on your back.  You will receive the intravenous contrast in a vein in your arm. You will feel a pin prick when the needle is inserted into your vein.  You may have a warm, flushed sensation during the injection of the contrast material and a metallic taste in your mouth that lasts for a few minutes.  You may experience a sensation like you have to urinate but this subsides quickly. The table will move quickly through the scanner to determine the correct starting position for the scan.  Then the table will move slowly through the machine as the actual CT scanning is performed.  You may be asked to hold your breath during the scanning to eliminate motion artifacts on the images.  You will be alone in the exam room during the CT scan, unless there are special circumstances.  However, the technologist will always be able to see, hear and speak with you at all times giving you instructions.

Testing Time:  The entire examination including preparation is usually completed within 1 to 1 ½ hours.

Risk of the Test:  Be sure to notify the technologist if there is any chance you may be pregnant or allergic to IV contrast.

Following the Test: You will be instructed to drink plenty of fluids to flush out the IV contrast. If you take a regular dose of Glucophage (Metformin), you MUST discontinue taking it for 48 hours following your exam. It is necessary to have a blood test in 2 days to determine that your kidneys are functioning properly BEFORE you resume your Glucophage.  We will fax your ordering physician to inform them of your need for a blood test.   You will also receive a letter from us reminding you of this.  The contrast material given for enterography is not absorbed by the body and will be expelled through the rectum.  Therefore, loose stools will be present for a couple of hours after the exam.  You will be instructed to drink water to flush out the IV contrast.  There are no restrictions following the test. 

Results of the test:  Your ordering physician will receive the results in 24-48 hours.  It is important to discuss the results of the exam with your doctor.