How can a radiologist reveal more practical information using dynamic study of cavernosal artery after injection of vasoactive agents?

Iranian Journal of Radiology : a Quarterly Journal Published by the Iranian Radiological Society
Seyyed Morteza Bagheri, Mohammad Hadi Gharib

Abstract

Erection is a dynamic multi-stage neurovascular phenomenon consisting of 4 phases. Conventional protocol of color Doppler study can easily overlook these ongoing dynamic events. Here, we tried to designate patterns for these dynamic spectral waveform changes of cavernosal arteries in patients with erectile dysfunction and subsequently better describe the extent of their underlying problem. We evaluated 59 men who were referred for post-intracavernosal injection (ICI) color Doppler investigation of suspected erectile dysfunction (ED). The demographic data and medical history were recorded. Afterwards, first scan injection was done. Then scanning of cavernosal arteries was started about one minute after the injection and was continued thereafter. For better description of temporal changes in the waveform of cavernosal arteries, new patterns were defined and used. Patients were also classified based on previously known etiologic categories (i.e. arterial insufficiency, venous leak, mixed type, and normal response). The mean age was 45.6 ± 13.1 (24 to 74 ) years. Twenty-two were normal responders [considered as non-organic causes (37.3% of all patients)], 27 were classified as venous leakage, eight had arterial insufficiency and tw...Continue Reading

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