Abstract
Radiology has been used to study normal and disordered ano-rectal function. The techniques employed have undergone modification and refinement in an attempt to record, as near as possible, the natural state. Such techniques can give precise anatomical information about the ano-rectum and recently the addition of simultaneous measurement of sphincteric EMG activity and intrarectal pressure has allowed insight into the activity of the pelvic floor during voiding. However, the fact that the subject is aware that what is essentially a personal and private function is being studied and recorded means that all techniques are a compromise and record only an approximation of the natural state. This must always be remembered when interpreting the activity of muscles that are under voluntary control.
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© 1987 Martinus Nijhoff Publishers, Dordrecht
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Womack, N.R., Williams, N.S. (1987). Defaecography. In: Gooszen, H.G., Ten Cate Hoedemaker, H.O., Weterman, I.T., Keighley, M.R.B. (eds) Disordered Defaecation. Developments In Surgery, vol 8. Springer, Dordrecht. https://doi.org/10.1007/978-94-009-3335-4_3
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DOI: https://doi.org/10.1007/978-94-009-3335-4_3
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