colonography

CT (computed tomography) colonography is a test that uses CT scans to check the large bowel (colon) and back passage (rectum). It’s also called a virtual colonoscopy. You have this test as an outpatient in the CT scanning (or radiology) department at the hospital. A radiographer or specialist doctor (radiologist) carries out the test. It usually takes around 30 minutes but you should expect to be in the department for about an hour or so. Why do I need a CT colonography? You usually have this test to help find the cause of your symptoms. Before your test You need