Objectives: Cavernosometry is a conventional and reliable method used in the diagnosis of caverno-venous incompetence. Recently, cavernosal artery end-diastolic blood flow velocity more than 5 cm/sec during the rigid phase and after 10 minutes with duplex ultrasonography has been considered as veno-occlusive dysfunction.
Methods: Fifteen patients with erectile dysfunction aged 20 to 56 years (mean age 35.8) were evaluated by dynamic infusion cavernosometry and duplex ultrasonography which measured end-diastolic blood flow velocity during the rigid phase of erection and after 10 minutes.
Results: Dynamic cavernosometry was considered the gold standard during this comparative study. The sensitivity of duplex ultrasonography was found to be 100%, its specificity was 71.42%, positive predictive value 80% and its negative predictive value was 100% in the detection of caverno-venous incompetence.