Incidence of Male Pudendal Artery Stenosis in Suboptimal Erections Study

Inclusion Criteria: * Subject must be undergoing coronary or peripheral angiography for suspected or known coronary or peripheral atherosclerotic disease * Subject must be male ≥ 35 and ≤ 70 years old * Subject must provide written informed consent before any study-related procedures are performed * Subject must agree to comply with study procedures and follow-up for the entire length of the study Exclusion Criteria: * Subject is unable to safely attempt sexual intercourse secondary to severe cardiac disease or other health condition * Subject has a life expectancy of \< 12 months * Subject's serum creatinine is \> 2.5 mg/dl * Subject has known aorto-iliac occlusive disease, previous AAA endograft procedure or open surgical procedure * Subject has history of prostatic carcinoma requiring surgery (i.e., prostatectomy), pelvic radiation, or hormonal/chemotherapy * Subject has a history of myocardial infarction, stroke, life-threatening arrhythmia, or unstable angina requiring hospitalization within 3 months (90 days) prior to enrollment * Subject has had exposure to PDE5 inhibitor (per subject's concomitant medication list) within the 72 hours prior to the scheduled baseline angiography * Subject has a history of renal transplantation * Subject has a penile implant * Subject has become unstable or has received a maximum radiation dose, increased procedure time, and/or maximum contrast dose (in the Investigator's opinion) from the primary angiographic procedure that would com…