Background: Erectile dysfunction (ED) is a widespread health issue affecting men across different age groups. Its complexity arises from the interaction of arterial, venous, sinusoidal, and nervous systems, with dysfunctions leading to ED. Various factors, such as cardiovascular diseases, diabetes, and lifestyle habits, influence ED. Penile Doppler sonography, a non-invasive method, is instrumental in evaluating ED, offering insights into penile anatomy and vascular flow patterns.

Objectives: To assess the diverse causes of Erectile Dysfunction using Colour Doppler in a tertiary care center.

Materials and Methods: In a prospective observational study from March 2021 to August 2022, 45 patients clinically diagnosed with ED were referred from various departments to the Department of Radio-Diagnosis, Vydehi Institute of Medical Sciences and Research Centre. Evaluation involved an intracavernosal injection of papaverine, followed by peak systolic and EDV measurements in the right cavernosal artery at 5-minute intervals for 30 minutes.

Results: Colour Doppler ultrasound effectively diagnosed ED by showcasing arterial and venous insufficiencies. Systolic velocities below 25cm/s indicated arterial insufficiency, while an EDV over 5cm/s denoted venous incompetence. The method is likely to undergo further refinement in the diagnostic criteria.

Conclusion: Penile Doppler ultrasound emerges as a secure, minimally invasive, and efficient method for evaluating ED. It offers a fast and straightforward assessment, making it a preferred choice in clinical settings.