New Research Indicates Virtual Colonoscopies

There is good news for the millions of older Americans who have developed a dread for a colonoscopy. A new study, led by a physician from Mayo Clinic in Arizona, shows that virtual colonoscopy – less invasive than the traditional kind – is an option for seniors. The American College of Radiology Imaging Network study published in Radiology now indicates that virtual colonoscopy is comparable to standard colonoscopy for people older than 65.

A colonoscopy is commonly performed for early detection of colon cancer. In the standard procedure, a long, flexible tube is used to view the lining of the colon. After prepping to cleanse the colon, the patient is sedated for the procedure and then generally goes home to rest for the remainder of the day. Virtual colonoscopy, known formally as computerized tomographic CT colonography, uses advanced imaging software to produce a three-dimensional view of the colon and rectum. No sedation is required, but the procedure requires the same cleansing preparation as standard colonoscopy.

C. Daniel Johnson, M.D., chairman of the Department of Radiology at Mayo Clinic in Arizona and co-author of the study, said virtual colonoscopies may be considered for a patient who:

·         has had a difficult time with previous colonoscopy procedures;

·         are on anti-coagulant drugs;

·         have a colon obstruction;

·         are unwilling to have a standard colonoscopy.

Colorectal cancer is the third-most frequently diagnosed cancer and the second-leading cause of cancer death in the United States, according to the National Cancer Institute.

For more on the study, see www.mayoclinic.org/news2012-sct/6720.html.