What is a computed tomography (CT) of the colon?

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Computed tomography (CT) colonography (virtual colonoscopy) is recommended for people at risk for colorectal cancer every five years. This method is under investigation. It is an advanced CT scan of the colon and rectum that produces two- and three-dimensional images of the colon and rectum that allow a doctor to look for polyps or cancer.

Continue Learning about Diagnostic Procedures

Diagnostic Procedures

Diagnostic Procedures

Allergy tests, echocardiograms, biopsies, semen analysis and spinal taps are just a few of the medical diagnostic procedures that are performed on patients diagnose diseases and conditions. These classification procedures do not i...

nvolve x-ray imaging or a surgical procedure, but, involve taking measurements and samples of fluids, tissues and cells. Learn more about diagnostic procedures from our experts.
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Important: This content reflects information from various individuals and organizations and may offer alternative or opposing points of view. It should not be used for medical advice, diagnosis or treatment. As always, you should consult with your healthcare provider about your specific health needs.