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Related Experiment Videos

FECOM: a new artificial stool for evaluating defecation

R E Pelsang1, S S Rao, K Welcher

  • 1Department of Radiology, The University of Iowa College of Medicine, Iowa City, USA.

The American Journal of Gastroenterology
|February 6, 1999
PubMed
Summary
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A new artificial stool, FECOM, offers a more realistic defecography experience than traditional barium paste. FECOM improved measurements of anorectal angle and was preferred by most subjects, suggesting it’s a better tool for assessing defecatory function.

Area of Science:

  • Gastroenterology
  • Medical Imaging
  • Pelvic Floor Disorders

Background:

  • Traditional defecography uses barium paste, which does not mimic stool consistency.
  • This may lead to inaccurate assessments of defecatory function and anorectal dynamics.

Purpose of the Study:

  • To prospectively compare the diagnostic utility of a novel artificial stool (FECOM) against barium paste for defecography.
  • To evaluate subject preference for a stool-like device during defecography.

Main Methods:

  • Defecography was performed on 12 healthy subjects using either FECOM or barium paste in a randomized order.
  • Evaluated parameters included anorectal angle, rectal morphology, rectal sensation, and subject preference.

Main Results:

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  • FECOM demonstrated significantly greater anorectal angles compared to barium paste.
  • Anterior rectocele, mucosal intussusception, and incontinence were identified only with barium paste.
  • 75% of subjects preferred FECOM, reporting it mimicked their natural stools more closely.

Conclusions:

  • The form and consistency of the defecography material influence anorectal angle measurements.
  • Findings from barium defecography in healthy subjects may be artifacts, questioning their clinical significance.
  • FECOM presents a realistic and preferred alternative to barium paste for defecography.