Abstract
Endorectal ultrasound gives a fairly precise anatomical view of the
muscular components of the continence organ. The strength of the
puborectalis and the external anal sphincter can be measured with
an accuracy slightly under one millimeter and consistency can be
gauged roughly. Another major use is for the diagnosis of pelvic,
particularly retrorectal, processes such as abscesses, tumours or
duplication. Short distances between ultrasound probe and process
yield a high resolution. The procedure is quick and does not cause
any radiation effects (as opposed to CT).
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