STUDIES ON MALE SEXUAL IMPOTENCE

Differential Diagnosis between Functional and Organic Impotences by Radioisotope Penogram upon Loading with Visual Sexual Stimulation

Abstract

As the method for objective differentiation between functional and organic impotences, radioisotope penogram with measurement of changes of blood flow through the penis using radioisotope was developed and applied. In the present study, changes of the radioisotope penogram curve were studied upon visual sexual stimulation. In patients with functional impotence, penogram curve rose in response to visual sexual stimulation while in cases with organic disturbance in the nervous system participating in erection including the upper center, penogram curve failed to react entirely despite sexual excitation in response to visual sexual stimulation, making differential diagnosis possible.