Is a virtual colonoscopy as effective as a traditional one?

Virtual colonoscopy (http://www.laendo.net/educational-articles/english-educational-articles/143-virtual-colonoscopy.html) is essentially an x-ray examination using CT scan. Using a computer X-ray image creates an image of colon and any lesion that may be associated with the colon. It usually can detect problem that is larger than 1cm. Additionally, flat lesion are difficult to detect. Moreover, there may an additional risk of ionizing radiation that may predispose one to undesired risk of developing cancer later on. Finally, if a lesion is found, one would still have to undergo colonoscopy to either take a close look, take a sample or remove the lesion. As a result, despite conceptual appeal, virtual colonoscopy is not frequently utilized.

If you are referring to a Capsule Endoscopy which is a procedure where you swallow a small camera (pill) and pictures of your intestinal tract are recorded every 15 seconds then reviewed by doctors the next day, then YES it is a very useful tool and a definite advance in the arsenal of medical devices used to diagnose Intestinal disease.