Rectal compliance determined by rectal endosonography

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Abstract
PURPOSE: The aim of this study was to develop a method for determination of rectal compliance that allows direct measurement of corresponding changes in the rectal crosssectional area or perimeter and rectal pressure. METHODS: We developed an anal probe for transrectal endosonography. The probe was testedin vitro, and rectal compliance of six healthy patients was determined. RESULTS: In vitromeasurements proved the method to be well reproducible. The method allowed calculation of an endosonographic rectal compliance, which correlated well with rectal compliance measured by the standard method. CONCLUSION: Endosonographic determination of rectal compliance is possible, and the endosonographic method may give a more precise and reproducible estimation of rectal compliance.