Defecography in healthy subjects: Comparison of three contrast media

Steven Ikenberry, John C. Lappas, Mark P. Hana, Douglas K. Rex

Research output: Contribution to journalArticle

21 Scopus citations


PURPOSE: To determine if differences in the viscosity of defecographic contrast media influence radiographic findings. MATERIALS AND METHODS: Twenty asymptomatic volunteers underwent defecography three times with a different contrast medium used for each examination. The contrast media varied in viscosity from a thin barium liquid to a commercial barium paste formulated for defecography and to an extremely thick, specially prepared barium contrast paste. RESULTS: Significant differences (P < .05) between media were demonstrated for measurements of the anorectal angle and anorectal junction during liquid medium voiding. Differences in pelvic floor descent and evacuation time were not significant (P > .05). Rectoceles occurred in 14 subjects and were demonstrated with all media. Low-grade intussusceptions were more prevalent with the liquid medium, but their occurrence was not statistically significantly more frequent (P > .05). CONCLUSION: Altering the viscosity of the barium contrast medium used for defecography does not substantially affect the subsequent radiographic findings.

Original languageEnglish (US)
Pages (from-to)233-238
Number of pages6
Issue number1
StatePublished - Oct 1996


  • Contrast media, comparative studies
  • Defecography
  • Rectum, radiography

ASJC Scopus subject areas

  • Radiological and Ultrasound Technology

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    Ikenberry, S., Lappas, J. C., Hana, M. P., & Rex, D. K. (1996). Defecography in healthy subjects: Comparison of three contrast media. Radiology, 201(1), 233-238.