Clinical Research Directory

Inclusion Criteria: 1. Male participants aged 18 years or older. 2. Documented or suspected coronary artery disease with a clinical indication for coronary angiography. 3. Coronary IVUS-NIRS evaluation indicated by the treating interventional cardiologist. 4. Sufficient clinical and hemodynamic stability to undergo the additional pudendal evaluation. 5. Favorable pelvic vascular anatomy for selective angiography and safe advancement of the IVUS-NIRS catheter. 6. Ability to complete the IIEF-5 questionnaire and provide information regarding sexual function. 7. Written informed consent specifically for study participation and invasive evaluation of the internal pudendal arteries. 8. Agreement to clinical follow-up by Cardiology and Urology. Exclusion Criteria: 1. Cardiogenic shock, hemodynamic instability, or acute clinical deterioration. 2. Urgent or complicated coronary procedure in which prolonging the procedure would increase risk. 3. Advanced kidney disease or high risk of kidney injury associated with additional contrast administration. 4. Unfavorable iliofemoral or pelvic vascular anatomy for safe evaluation of the internal pudendal arteries. 5. Severe coagulopathy, active bleeding, or contraindication to the invasive procedure. 6. History of radical pelvic surgery or pelvic radiotherapy. 7. Advanced prostate cancer or previous urologic treatment that predominantly explains erectile dysfunction. 8. Severe untreated hypogonadism, advanced neurologic disease, or another predominant nonvascular cause of erectile dysfunction. 9. Inability to reliably complete the IIEF-5 questionnaire. 10. Refusal to participate or to provide study-specific written informed consent.