Let's face it, there are some tests that most of us don't look forward to having done. Colonoscopy is one of them. I put mine off for about a year but when I finally had it done this year I was really glad that I did. It really wasn't as bad as I thought it would be.
Colorectal cancer is one of the most common gastrointestinal diseases that unfortunately tend to be without symptoms early in its course.Since it takes up to 10 years for a colonic polyp to grow to a size with a high likelihood of invasive cancer, timely and accurate patient screening with subsequent polyp removal can prevent over 90% of malignant colorectal cancers. Optical colonoscopy is the only established effective method of colon cancer screening. Polyps can be removed and thereby decrease the chance of subsequent development of colon cancer.
CT Colonography, also known as Virtual Colonoscopy is a diagnostic imaging tool that consists of computer generated images of the colon acquired through high resolution CT. Virtual Colonoscopy is an evolving and almost mature technology that is finding its place in the diagnostic tools for the evaluation of the colon. The advantages of CT colonography include: sedation is not required, there is a lower risk for perforation, it is less expensive and CT has the ability to detect extra-colonic findings.
Are you interested in learning more about colorectal cancer, tumor types, staging and the unique information that each imaging modality, clinical exam, or test provides to reach a diagnostic conclusion? Log onto the at: Learning Center and go to the Course Catalog – Computed Tomography.