title: Ultrasound evaluation of the penis for assessment of impotence.
abstract: Image directed Doppler ultrasonography of the cavernous arteries provides functional, quantifiable assessment of penile arterial flow during a pharmacological erection. In this respect, this modality is superior to arteriography as a means of evaluating arteriogenic impotence. Peak flow velocity, arterial dilatation, and vessel pulsation are the most reliable ultrasonic indicators of arterial health. Aberrant arterial anatomy should be noted as this may contribute significantly to total penile blood flow. A thorough understanding of erectile physiology and anatomy is necessary to properly perform and interpret Doppler ultrasound results.
authors.affiliation: Department of Urology, University of California School of Medicine, San Francisco, USA.
authors.forename: J A
authors.initials: JA
authors.lastname: Connolly
authors.forename: S
authors.initials: S
authors.lastname: Borirakchanyavat
authors.forename: T F
authors.initials: TF
authors.lastname: Lue
mesh_terms: D006801:Humans; D018783:Impotence, Vasculogenic / Q000000981:diagnostic imaging*; D008297:Male; D008722:Methods; D010413:Penis / Q000098:blood supply / Q000000981:diagnostic imaging*; D014463:Ultrasonography