![]() ![]() When you arrive you usually fill out a checklist or questionnaire with the radiographer. Find out about having a CT colonography.This movement (called peristalsis) can change the scan and make it more difficult to read. You might also have a medicine to slow down the normal movement of your bowel. Your doctor or nurse will tell you about this. It's a type of dye but also acts like a laxative. You might also have a special liquid to drink called gastrorgrafin. You'll have strong laxatives and follow a special diet about 2 days before the test. You might have a very detailed scan of the bowel called a CT colonography (or virtual colonoscopy).įor this test you need an empty bowel. Your first couple of bowel motions will be white, but there are no other side effects. This shows up on the x-ray and makes the outline of the bowel show up more on the scan. Occasionally, for a rectal scan, you need to have an enema of contrast medium. stop eating or drinking for some time before the scan.If you are having a CT scan of the pelvis, you might need to: It contains the pelvic organs, including the bladder, lower bowel and reproductive organs. The pelvis is the lower cavity of the body in the area between the hip bones. It may help to show whether cancer can be removed with surgery or not. For example, if your doctor wants to know if the cancer is affecting your blood vessels. This is to help show up the tissues close to the area containing cancer. ![]() You might have an injection of the contrast medium during the scan. This helps to show up the gut ( digestive system ) more clearly in the scan.įor some brain scans, you might have an injection of the contrast medium dye beforehand. You usually have the contrast medium by injection and also as a drink. stop eating or drinking after midnight the night before the scan (this is for a CT scan of the inside of the large bowel, called CT colonography).drink more of the liquid contrast or water in the x-ray department.drink a liquid contrast medium some time before the scan.If you are having a CT scan of your abdomen, you might need to: This is in case you have any problems such as an allergic reaction after having the injection. The cannula stays in place until after your scan. You have the injection through a small thin tube (cannula) into your arm. This is a dye that shows up body tissues more clearly on the scan. Some CT scans need special preparation beforehand.įor most scans, you have a drink or an injection of contrast medium, or both. as part of your follow up after treatment.to help work out where the cancer is, how close it is to nearby organs and how big it is - this can help your doctors decide about whether you need further tests or what treatment you need.to diagnose a range of conditions including cancer.For example, a CT urogram is a different type of CT scan. Or you might have a different type of CT scan depending on what information your doctor wants to know. You might have a CT scan combined with another test such as a PET scan (PET-CT scan). The whole appointment can take up to an hour and a half depending on which part of your body they are scanning. You usually have a CT scan in the x-ray (radiology) department as an outpatient. The computer puts them together to make a 3 dimensional (3D) image.ĬT (or CAT) stands for computed (axial) tomography. A CT scan is a test that uses x-rays and a computer to create detailed pictures of the inside of your body. ![]()
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