Dynamic and morphologic evaluation of erectile dysfunction on penile doppler sonography and contrast cavernosography

Area of Science:

• Urology
• Radiology
• Andrology

Background:

• Erectile dysfunction (ED) is the persistent inability to achieve or maintain penile erection for sexual intercourse.
• It results from complex interactions between psychologic, hormonal, nervous, arterial, venous, and sinusoidal systems.
• Vascular factors are significant contributors to ED, particularly in certain geographic settings.

Purpose of the Study:

• To determine real-time morphologic vascular abnormalities in men with ED.
• To utilize penile Doppler sonography for assessing vasculogenic ED.
• To investigate the prevalence of specific vascular pathologies in Nigerian men with ED.

Main Methods:

• A review of 21 male patients referred for suspected vasculogenic ED.
• Examination of cavernorsal arteries using 7.5 MHz linear transducer in gray scale and duplex Doppler modes.
• Intracavernosal injection of 60 mg papaverine followed by serial peak systolic velocity (PSV), end diastolic velocity (EDV), and diameter measurements for 30 minutes.

Main Results:

• Out of 21 patients, 5 had normal findings.
• 10 patients exhibited evidence of venous leakage.
• 5 patients presented with arterial insufficiency, including 3 with tunica albuginea calcifications suggestive of Peyronie's disease. One patient had combined arterial and venous issues.
• Patients with arterial insufficiency were older and often had comorbidities like diabetes and hypertension.

Conclusions:

• Vascular etiologies significantly contribute to ED in the studied population.
• Papaverine-induced penile Doppler sonography is a promising tool for accurate assessment of ED.
• This diagnostic approach aids in the overall management of patients with vasculogenic ED.