title: Improved minimally-invasive assessment of penile haemodynamics: the combination of colour Doppler sonography and injection-stimulation test.
abstract: The aim of this study was to assess the diagnostic value of erotically enhanced penile colour Doppler sonography as a minimally invasive tool to evaluate penile haemodynamics. Colour Doppler sonography was used to study the cavernosal arteries of 135 consecutive impotent patients after intracavernous injection of a vasoactive mixture (injection phase) and after subsequent genital and audiovisual sexual stimulation (stimulation phase). The erectile response was upgraded after the adjunct of genital and audiovisual stimulation in 36% of patients. Colour Doppler assessment performed after the stimulation phase identified 16% of patients as arteriogenic despite normal erections, and 7% of patients falsely diagnosed as venogenic after the injection phase. When colour Doppler sonography and the injection-stimulation test are performed together as a single diagnostic procedure the overall diagnostic accuracy is significantly enhanced.
authors.affiliation: Institute of Human Anatomy, Scientific Institute H. San Raffaele, Milan, Italy.
authors.forename: F
authors.initials: F
authors.lastname: Montorsi
authors.forename: G
authors.initials: G
authors.lastname: Guazzoni
authors.forename: A
authors.initials: A
authors.lastname: Bocciardi
authors.forename: L
authors.initials: L
authors.lastname: Barbieri
authors.forename: P
authors.initials: P
authors.lastname: Rigatti
authors.forename: G
authors.initials: G
authors.lastname: Pizzini
authors.forename: A
authors.initials: A
authors.lastname: Miani
mesh_terms: D000328:Adult; D000368:Aged; D005189:False Positive Reactions; D006439:Hemodynamics / Q000502:physiology*; D006801:Humans; D018783:Impotence, Vasculogenic / Q000175:diagnosis; D007267:Injections; D008297:Male; D008875:Middle Aged; D010410:Penile Erection / Q000187:drug effects / Q000502:physiology; D010413:Penis / Q000098:blood supply* / Q000000981:diagnostic imaging; D012039:Regional Blood Flow / Q000187:drug effects / Q000502:physiology; D018615:Ultrasonography, Doppler, Color; D014665:Vasodilator Agents / Q000008:administration & dosage
chemical_list: D014665:Vasodilator Agents