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Rectal compliance determined by rectal endosonography. A new application of endosonography
N I Alstrup1, B Skjoldbye, O O Rasmussen
1Department of Surgery D, Herlev Hospital, University of Copenhagen, Denmark.
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 cross-sectional area or perimeter and rectal pressure.
Methods:
We developed an anal probe for transrectal endosonography. The probe was tested in vitro, and rectal compliance of six healthy patients was determined.
Results:
In vitro measurements 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.