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Evaluation of normal subjects by defecographic technique.
F Selvaggi1, G Pesce, E Scotto Di Carlo
1VI Division of General Surgery, Second School of Medicine of Naples, Italy.
Diseases of the Colon and Rectum
|August 1, 1990
Summary
This study introduces a simple defecation radiography technique using barium sulfate. It establishes normal physiologic parameters for anorectal angle, anal canal width, and evacuation time, confirming defecography
Area of Science:
- Gastroenterology
- Radiology
- Physiology
Background:
- Defecation disorders require accurate diagnostic methods.
- Establishing normal physiologic parameters is crucial for interpreting defecation studies.
Purpose of the Study:
- To describe a simple video defecography method.
- To establish baseline physiologic parameters for normal defecation.
Main Methods:
- Video recording of barium sulfate expulsion during defecation.
- Measurement of anorectal angle (ARA), anal canal width (W), sphincteric relaxation time (SRT), and total evacuation time (TET).
Main Results:
- Normal ARA at rest: 90.00 +/- 4.76 degrees; during evacuation: 111.00 +/- 5.02 degrees.
- Normal anal canal width (W): 1.29 +/- 0.13 cm.
- Normal SRT: 4.50 +/- 1.04 sec; TET: 12.00 +/- 3.54 sec.
Conclusions:
- Video defecography is an effective technique for assessing defecation.
- Standardization of defecography methods is recommended for reliable data interpretation.