Cardiovascular risk engines can help in selecting patients to be evaluated by dynamic penile color doppler ultrasound

General dynamic penile color doppler ultrasound (D-PCDU) screening in patients with erectile dysfunction (ED) has been questioned due to an inadequate cost-benefit ratio. The aim of the present study is to evaluate the validity of different risk scores in the identification of patients being screened for arteriogenic ED (AED) at D-PCDU. A consecutive series of 738 patients with ED was studied. AED was defined when peak systolic velocity (PSV) was lower than 25 cm/sec. The assessment of cardiovascular risk was evaluated using different risk engines, derived from the Framingham, the PROCAM and the Progetto Cuore studies. An iterative receiver operator characteristic (ROC) curve analysis was used to determine the most proper threshold for different scales for the screening of AED. Among the patients studied, 52 (7%) had PSV15%, who represent about 1/4 of all patients (26.8%), as estimated by Progetto Cuore, about 70% of cases of arteriogenic ED can be identified. Estimated cardiovascular risk, assessed through risk engines, could be used to identify patients who should undergo D-PCDU evaluation for the diagnosis of AED.