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How different is virtual colonoscopy from full colonoscopy?

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During a full colonoscopy, your doctor slides a thin, flexible tube into your rectum so she can see your colon. You’ll be asleep during the process. She’ll use the light and camera on the end of the tube to look at the lining of your intestine.

Your doctor doesn’t put a camera into your intestine for a CT colonography. You aren’t asleep during the test. Instead, she uses a CT scanner and X-rays to make 3-D pictures of your intestine on a computer screen.

From: What Is a 'Virtual' Colonoscopy? WebMD Medical Reference

SOURCES:

Radiological Society of North America: “CT Colonography.”

National Institute of Diabetes and Digestive and Kidney Diseases: “Virtual Colonoscopy.”

Johns Hopkins Medicine: “Virtual Colonoscopy for Cancer Screening.”

National Cancer Institute: “Computed Tomography (CT) Scans and Cancer,” “Virtual Colonoscopy.”

Reviewed by Laura J. Martin on February 15, 2018

SOURCES:

Radiological Society of North America: “CT Colonography.”

National Institute of Diabetes and Digestive and Kidney Diseases: “Virtual Colonoscopy.”

Johns Hopkins Medicine: “Virtual Colonoscopy for Cancer Screening.”

National Cancer Institute: “Computed Tomography (CT) Scans and Cancer,” “Virtual Colonoscopy.”

Reviewed by Laura J. Martin on February 15, 2018

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How can you prepare for virtual colonoscopy?

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