How is capsule colonoscopy used to screen for colon cancer?

Updated: Apr 15, 2020
  • Author: Tomislav Dragovich, MD, PhD; Chief Editor: N Joseph Espat, MD, MS, FACS  more...
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Answer

For capsule colonoscopy, the patient swallows a pill camera that acquires images as peristalsis propels it through the gastrointestinal tract. The images are transmitted to a recording device and then converted to a video format for viewing on a computer.

In 2014, the US Food and Drug Administration approved the PillCam COLON 2 Capsule Endoscopy System (Given Imaging Limited, Yoqneam, Israel) for use in patients in whom conventional colonoscopy with adequate preparation was conducted, but a complete evaluation of the colon was not technically possible. In multicenter trials, capsule colonoscopy has demonstrated a sensitivity of 84-89% for detection of polyps larger than 6 mm. [63]


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