The aim of this paper is to provide a method for measuring the internal anal sphincter on the basis of the quantitative analysis of three-dimensional endosonographic images. A software calculates a large set of measurements which are able to describe the three-dimensional shape of the muscle.
First Clinical Division of General Surgery, Anaesthesiological and Surgical Science Department, University Hospital of Verona, Verona, Italy. andrea.sboarina@univr.it
