New aspects of 3D anal ultrasonography

3D US examination of the anal canal is a new method which makes it possible to determine the pathology of the external and internal anal sphyncter in minute detail. Combined with anoscopy and 2D anal endosonography it can be applied for establishing the exact extension and depth of the alteration. In case of anal incontinence the 3D reconstruction of the three levels of anal sphyncter adds extra value to the traditional anal sonography owing to the computer analysis of the whole wall structure. Patients and Methods: 24 patients with complaints of incontinence were examined by 3D US. The normal anatomy of the ana…