title: The value of dynamic color duplex scanning in the diagnosis of venogenic impotence.
abstract: To determine the value of color duplex scanning in the diagnosis of venogenic impotence we examined 53 patients. The control population consisted of 26 psychogenically impotent men and 8 normal potent men who all had a firm erection after pharmacological stimulation. There was no significant difference in the values of duplex parameters between these 2 groups. The venous leak population was characterized by a bad erectile response to pharmacological stimulation despite a good arterial compliance and by a persistent diastolic flow as shown by duplex scanning. There was a significant difference with the control population for the parameters of resistance index after 10 minutes (p = 0.001), minimal resistance index (p = 0.016) and corporeal volume increase (p = 0.010). There was a good correlation between the results of duplex scanning and those of pharmacocavernosography-pharmacocavernosometry (93%). We conclude that dynamic color duplex scanning can be used as a screening procedure to diagnose significant venous leakage in an objective manner with the resistance index.
authors.affiliation: Department of Urology, Vrije Universiteit Brussel, Belgium.
authors.forename: L A
authors.initials: LA
authors.lastname: Merckx
authors.forename: R M
authors.initials: RM
authors.lastname: De Bruyne
authors.forename: E
authors.initials: E
authors.lastname: Goes
authors.forename: M P
authors.initials: MP
authors.lastname: Derde
authors.forename: F
authors.initials: F
authors.lastname: Keuppens
mesh_terms: D000368:Aged; D001783:Blood Flow Velocity; D007172:Erectile Dysfunction / Q000000981:diagnostic imaging* / Q000209:etiology; D006801:Humans; D008297:Male; D008875:Middle Aged; D010208:Papaverine / Q000494:pharmacology; D010410:Penile Erection / Q000187:drug effects; D012372:ROC Curve; D012039:Regional Blood Flow; D014463:Ultrasonography; D014680:Veins / Q000503:physiopathology
chemical_list: D010208:Papaverine