Colonoscopy - virtual; CT colonography

• Radiation exposure
• The medications to prepare for the test can cause nausea, vomiting, bloating, or rectal irritation.

Differences between virtual and conventional colonoscopy include:

• Virtual colonoscopy can view the colon from many different angles. This is not as easy with conventional colonoscopy.
• Virtual colonoscopy uses no sedation, and patients are usually able to go back to their normal activities right away after the test. Conventional colonoscopy involves sedation, and usually the loss of a work day.

Virtual colonoscopy is now one of the American Cancer Society's recommended screening tools for colon cancer.

Review Date: 11/12/2010
Reviewed By: Neil K. Kaneshiro, MD, MHA, Clinical Assistant Professor of Pediatrics, University of Washington School of Medicine. Also reviewed by Todd Eisner, MD, Private practice specializing in Gastroenterology, Boca Raton, FL. Clinical Instructor, Florida Atlantic University School of Medicine. Review provided by VeriMed Healthcare Network. Also reviewed by David Zieve, MD, MHA, Medical Director, A.D.A.M., Inc.

A.D.A.M., Inc. is accredited by URAC, also known as the American Accreditation HealthCare Commission (www.urac.org)