Virtual Colonoscopy is the a non-invasive alternative to a colonoscopy. Rather then inserting a colonoscope into the rectum, a virtual colonoscopy takes a 3D image of the colon with CT scans or x-rays.
According to a study published in September 2008, a virtual colonoscopy by CT scan--called CT Colonography--is nearly as effective as a standard colonoscopy.WebMD: Virtual Colonoscopy, Real Accuracy (September 17, 2008)
Study
According to a study on the efficacy of CT Colonography, the procedure is 90% effective in detecting polyps--a rate that is comparable to the traditional colonoscopy.WebMD: Virtual Colonoscopy, Real Accuracy (September 17, 2008) However, the traditional method was found to be more effective at detecting very small polyps.WebMD: Virtual Colonoscopy, Real Accuracy (September 17, 2008)
Disclaimer
The content in this page is not a substitute for professional medical advice. Please contact your doctor for more information on a Virtual Colonoscopy.
References
Fast Facts
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Fact:
Preparations vary
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Advantages
sedation unneeded, more comfortable for some
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Disadvantages
no tissue sample, polyps sometimes missed
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Fact:
Recent studies suggest no less effective then standard colonoscopy
