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Exoanal Imaging of the Anal Sphincters
Author(s) -
Dietz Hans Peter
Publication year - 2018
Publication title -
journal of ultrasound in medicine
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.574
H-Index - 91
eISSN - 1550-9613
pISSN - 0278-4297
DOI - 10.1002/jum.14246
Subject(s) - medicine , anal canal , asymptomatic , modality (human–computer interaction) , endoanal ultrasound , anal sphincter , computed tomographic , sphincter , radiology , internal anal sphincter , surgery , computed tomography , rectum , artificial intelligence , computer science
Since its introduction in the early 1990s, endoanal sonography has become the mainstay of morphologic assessment of the anal canal and sphincter, especially for obstetric anal sphincter trauma. Lack of availability of suitable systems and the invasive nature of the method have limited uptake and clinical utility. More recently, exoanal or transperineal/translabial tomographic imaging has been developed as a noninvasive alternative. This pictorial overview aims to introduce the reader to this new diagnostic modality and to demonstrate common findings in asymptomatic and symptomatic women.