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Computed Tomography

Tomography refers to imaging by sections. Computed tomography (CT) is a non-invasive imaging technique that uses computers to analyze several cross-sectional X-rays to reveal minute details about structures in the body.
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Updated: May 12, 2026

Using Multi-fluorinated Bile Acids and In Vivo Magnetic Resonance Imaging to Measure Bile Acid Transport
08:42

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Published on: November 27, 2016

Virtual magnetic resonance colonography.

J F Debatin1, T C Lauenstein

  • 1Department of Diagnostic and Interventional Radiology, University Hospital Essen, Essen, Germany. debatin@uni-essen.de

Gut
|May 15, 2003
PubMed
Summary
This summary is machine-generated.

Magnetic resonance (MR) colonography offers accurate colorectal cancer screening. Fecal tagging techniques enhance patient acceptance by eliminating the need for bowel cleansing, improving the effectiveness of this screening method.

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Area of Science:

  • Gastroenterology and Radiology
  • Medical Imaging Technology

Background:

  • Colorectal cancer screening effectiveness hinges on patient acceptance.
  • Magnetic resonance (MR) colonography demonstrates high accuracy (>95%) for detecting polyps >10 mm.
  • Traditional colonoscopy requires bowel preparation, which can reduce patient compliance.

Purpose of the Study:

  • To review the techniques underlying MR colonography.
  • To describe early clinical experiences with fecal tagging methods for MR colonography.
  • To highlight strategies for improving patient acceptance in colorectal cancer screening.

Main Methods:

  • Magnetic resonance (MR) colonography utilizes MR imaging to visualize the colon.
  • Fecal tagging involves modifying the signal of fecal matter to match the distension enema.
  • This technique aims to eliminate the need for traditional bowel cleansing protocols.

Main Results:

  • MR colonography shows high sensitivity and specificity for detecting clinically significant polyps.
  • Fecal tagging techniques have been developed to improve patient experience.
  • The combination of MR colonography and fecal tagging obviates the need for bowel cleansing.

Conclusions:

  • MR colonography is an accurate tool for colorectal cancer screening.
  • Fecal tagging significantly enhances patient acceptance by removing the requirement for bowel preparation.
  • These advancements hold promise for improving adherence to colorectal cancer screening protocols.