Virtual Colonoscopy

  • Medical Author:
    Dennis Lee, MD

    Dr. Lee was born in Shanghai, China, and received his college and medical training in the United States. He is fluent in English and three Chinese dialects. He graduated with chemistry departmental honors from Harvey Mudd College. He was appointed president of AOA society at UCLA School of Medicine. He underwent internal medicine residency and gastroenterology fellowship training at Cedars Sinai Medical Center.

  • Medical Editor: William C. Shiel Jr., MD, FACP, FACR
    William C. Shiel Jr., MD, FACP, FACR

    William C. Shiel Jr., MD, FACP, FACR

    Dr. Shiel received a Bachelor of Science degree with honors from the University of Notre Dame. There he was involved in research in radiation biology and received the Huisking Scholarship. After graduating from St. Louis University School of Medicine, he completed his Internal Medicine residency and Rheumatology fellowship at the University of California, Irvine. He is board-certified in Internal Medicine and Rheumatology.

woman with abdominal pain

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My personal approach to recommending virtual versus optical colonoscopies

  • In healthy patients who want all the polyps (including ones smaller than 5mm) to be removed, I recommend optical colonoscopy
  • In patients who do not want to undergo optical colonoscopy and are willing to accept the possibility of leaving small polyps untreated, virtual colonoscopy is an alternative to optical colonoscopy.
  • In unhealthy patients with advanced heart, lung, liver, or kidney diseases, virtual colonoscopy may be a safer and less invasive alternative to optical colonoscopy.

New England Journal of Medicine, October 2007

Medically reviewed by Martin E Zipser, MD; American Board of Surgery


"Computed tomographic colonography"

Medically Reviewed by a Doctor on 6/30/2015

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  • Virtual Colonoscopy - Patient Experience

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