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Related Experiment Videos

CT and MR colonography: scanning techniques, postprocessing, and emphasis on polyp detection.

Remy W F Geenen1, Shahid M Hussain, Filippo Cademartiri

  • 1Department of Radiology, Erasmus Medical Center, Dr Molenwaterplein 40, 3015 GD Rotterdam, The Netherlands. r.geenen@erasmusmc.nl

Radiographics : a Review Publication of the Radiological Society of North America, Inc
|October 7, 2003
PubMed
Summary

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Computed tomographic (CT) and magnetic resonance (MR) colonography show promise for detecting colon polyps. Further research is needed to establish their accuracy compared to colonoscopy for widespread clinical use.

Area of Science:

  • Gastroenterology
  • Radiology
  • Medical Imaging

Background:

  • Computed tomographic (CT) and magnetic resonance (MR) colonography are emerging cross-sectional imaging techniques.
  • Both show initial promise in detecting polyps ≥1 cm in symptomatic patients.

Purpose of the Study:

  • To review the current status and potential of CT and MR colonography.
  • To compare these techniques with traditional colonoscopy and double-contrast barium enema.

Main Methods:

  • Review of CT and MR colonography techniques, including multiplanar reformatting and virtual endoscopy.
  • Discussion of advantages such as multiplanar capabilities and detection of enhancing lesions.
  • Consideration of patient acceptance and fecal tagging techniques.

Related Experiment Videos

Main Results:

  • CT and MR colonography demonstrate potential advantages over conventional methods.
  • Patient preference studies suggest a favorable view of CT colonography over colonoscopy.
  • Fecal tagging techniques may improve patient acceptance by reducing discomfort from bowel cleansing.

Conclusions:

  • CT and MR colonography require further validation to match colonoscopy's accuracy for polyp detection in both symptomatic and screening populations.
  • These techniques offer unique visualization and lesion detection capabilities.
  • Improved patient acceptance and standardized protocols are crucial for future implementation.