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Related Experiment Videos

Gastrointestinal tract: dynamic MR studies with echo-planar imaging.

M K Stehling1, D F Evans, G Lamont

  • 1Department of Physics, University of Nottingham, University Park, England.

Radiology
|April 1, 1989
PubMed
Summary

High-speed echo-planar imaging visualizes gastrointestinal (GI) tract motility in real-time. This technique captures peristaltic patterns without needing gut paralysis, enabling quantitative motion analysis.

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Area of Science:

  • Medical Imaging
  • Gastroenterology
  • Physiology

Background:

  • Gastrointestinal (GI) motility is crucial for digestion.
  • Real-time imaging of GI tract motion is challenging due to physiological movement.
  • Existing techniques may require interventions like gut paralysis.

Purpose of the Study:

  • To demonstrate the utility of high-speed echo-planar imaging for visualizing GI tract motility.
  • To assess the feasibility of real-time imaging of peristalsis.
  • To explore the potential for quantitative motion analysis of the GI tract.

Main Methods:

  • Utilized modulus blipped echo-planar single-pulse technique (MBEST), a high-speed echo-planar imaging method.
  • Acquired data with acquisition times of 64 and 128 milliseconds.

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  • Imaged four human volunteers under fasting, fed, and pharmacologically stimulated conditions.

    • Main Results:

    • Successfully depicted GI tract motility, including peristaltic patterns of the gastric antrum and proximal small intestine.
    • Achieved real-time imaging, obviating image degradation due to motion.
    • Demonstrated the technique's ability to image without the need for gut paralysis.

    Conclusions:

    • High-speed echo-planar imaging (MBEST) is a viable technique for real-time visualization of GI tract motility.
    • The method allows for imaging under various physiological states without invasive interventions.
    • This technique holds potential for quantitative assessment of GI tract dynamics.