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Related Experiment Videos

Upright dynamic MR defaecating proctography in an open configuration MR system.

G M Lamb1, M G de Jode, S W Gould

  • 1Interventional Magnetic Resonance Unit, Imperial College School of Medicine, St Mary's Hospital, London, UK.

The British Journal of Radiology
|July 8, 2000
PubMed
Summary

This study evaluates a new magnetic resonance (MR) proctography technique for assessing rectal evacuation. The MR method shows promise as an alternative to traditional fluoroscopic proctography for diagnosing anatomical and functional abnormalities.

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Area of Science:

  • Medical Imaging
  • Gastroenterology
  • Radiology

Background:

  • Conventional fluoroscopic proctography is a standard imaging technique for evaluating defecation disorders.
  • Limitations of fluoroscopic proctography include radiation exposure and challenges in dynamic imaging.

Purpose of the Study:

  • To evaluate the efficacy and feasibility of a magnetic resonance (MR) proctography technique.
  • To assess anatomical and functional abnormalities of the rectum during defecation.

Main Methods:

  • Utilized an open 0.5 T MR system for dynamic imaging.
  • Employed a fast gradient echo sequence to visualize rectal evacuation.
  • Administered a gadolinium-containing rectal contrast agent.
  • Performed imaging in the upright position.

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Main Results:

  • Successfully imaged rectal evacuation in 40 patients.
  • Documented both anatomical and functional abnormalities.
  • Demonstrated the potential of MR proctography in a clinical setting.

Conclusions:

  • MR proctography is a viable alternative to conventional fluoroscopic proctography.
  • This technique offers a non-ionizing radiation imaging option for defecation disorders.