title: Imaging of the anorectal region.
abstract: Imaging of anorectal region has drastically changed during the last decade. Transrectal ultrasound and transrectal MRI can be used for staging the rectal tumours. Endoanal sonography can be applied for the classification of perianal fistulae and identification of anal sphincter defects in patients with faecal incontinence. Due to the limitations of endoanal sonography, endoanal MRI was introduced to assess the pathology related to the anal sphincter complex. Endoanal MRI seems superior to endoanal sonography. This paper describes the new developments of the imaging techniques and presents new insights in anatomy and pathology of the anorectum.
authors.affiliation: Department of Radiology, University Hospital Rotterdam (Dijkzigt), The Netherlands.
authors.forename: S M
authors.initials: SM
authors.lastname: Hussain
authors.forename: J
authors.initials: J
authors.lastname: Stoker
authors.forename: H E
authors.initials: HE
authors.lastname: Schütte
authors.forename: J S
authors.initials: JS
authors.lastname: Laméris
mesh_terms: D001004:Anus Diseases / Q000175:diagnosis* / Q000000981:diagnostic imaging; D019160:Endosonography; D005260:Female; D006801:Humans; D008279:Magnetic Resonance Imaging; D008297:Male; D012002:Rectal Diseases / Q000175:diagnosis* / Q000000981:diagnostic imaging; D012004:Rectal Neoplasms / Q000175:diagnosis / Q000000981:diagnostic imaging