Information for patients who require a CT Abdomen/Pelvis

CT Abdomen/Pelvis

A CT scan, sometimes called CAT scan, is a type of specialised xray examination where ‘slices’ of the body are imaged and then are reconstructed to give a 2D picture of your internal organs, vessels and other structures to help doctors diagnose and treat medical conditions.

How should I prepare for the CT scan?

You should wear comfortable, loose-fitting clothing to your exam. You may be given a gown to wear during the procedure.
You may require blood tests to assess how well your kidneys are working prior to the CT scan as the IV contrast can affect kidney function
You may be asked not to eat anything for several hours beforehand, especially if oral or IV contrast will be used in your exam. The oral contrast is commenced ½ - 1 ½ hours prior to the scan appointment time. The oral contrast in your digestive system will help the Radiologist evaluate your abdomen.
You should inform your doctor of any medications you are taking and if you have any allergies especially if you have a known allergy to intravenous (IV) contrast, or "dye". Your doctor may prescribe medications to reduce the risk of an allergic reaction.
You will have to complete a medical history questionnaire and sign a consent form

Women should always inform their doctor and the CT technologist if there is any possibility that they are pregnant.

How is the CT scan performed?

You will be positioned on the CT examination table, usually lying flat on your back.
If contrast is required, an IV cannula will be inserted into your arm.
You may be asked to hold your breath for a short period during the scanning.
Your appointment is usually completed within 20 minutes.

What will I experience during and after the procedure?

CT exams are generally painless, fast and easy. With our new 64 slice CT, the amount of time that the patient needs to lie still is reduced.
Though the scanning itself causes no pain, there may be some discomfort from having to remain still for several minutes.
If an intravenous contrast material is used, you will feel the needle being inserted into your vein. You may have a warm, flushed sensation during the injection of the IV contrast and a metallic taste in your mouth that lasts for a few minutes. Some patients may experience a sensation like they have to urinate but this subsides quickly.
If you require oral contrast to drink, you may find the taste mildly unpleasant; however, most patients can easily tolerate it.
You will be alone in the exam room during the CT scan. However, the technologist and the nurse will be able to see, hear and speak with you at all time.
After a CT exam, you can return to your normal activities.
If you received IV contrast, you may be given special instructions regarding drinking plenty of water to flush the IV contrast out of your body, and when to recommence your diabetic tablets.

Who interprets the results and how do I get them?

The CT technologist and nurse doing your CT are unable to give you any information about your images during your appointment.
A radiologist with expertise in supervising and interpreting radiology examinations will review the images and send a report to your referring doctor who will discuss the results with you.
Your CT scan images and report will be available to your referring doctor within 24 hours of your appointment time.

‘InsideRadiology’ is a resource produced especially for health consumers by the Royal Australian and New Zealand College of Radiologists. It contains Information about radiology tests and procedures that you or a family member may require - www.insideradiology.com.au

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