A 24-year-old member asked:
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what happens during a virtual colonoscopy?

2 doctor answers
Dr. Alain Ades
38 years experience Gastroenterology
Virtual: You are in a cat scanner, with air and sometimes contrast pumped into you. Unpleasant and not as accurate as a regular colonoscopy. Also, if something is found, youmwill need a colonoscopy anyway.
Answered on Jun 20, 2014
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Dr. Kyle Cologne
12 years experience Colon and Rectal Surgery
CT: Virtual colonoscopy involves a bowel prep just like a regular colonoscopy. However, rather than a scope inserted via the anus to look at the inside with a camera, air is infused into the colon and a ct scan obtained. The radiologic images give a 3d picture of the inside of the colon to determine if any polyps or other ptoblems exist. If they do, you will still need a colonoscopy to check them out.
Answered on May 17, 2014
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Dr. Michael Puckett
33 years experience Radiology
It is important to note that a follow colonoscopy would be required in only about 10% of patient. Approximately 87% of patients will have no significant findings (a mass or polyps larger than 5 mm) and no further procedures would be necessary.
Mar 17, 2013

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Dr. Christopher Powers
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Not much: You will be under the influence of versed or some other medication such that you won't feel and/or remember a thing.
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Dr. Vijay Laxmi Misra
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Yes: During colonoscopy, if suspicious polyps are seen, they are removed. Histology is the only sure way of knowing if it is a benign or adenomatous polyp.
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