Comparison of International Erectile Function Index Scores and Penile Doppler Ultrasonographic Findings in Erectile Dysfunction Patients

Lee, Hyung Il; Lee, Kyung Seop; Seo, Young Jin

Abstract

PURPOSE: Of the various methods for evaluating erectile dysfunction, International Index of Erectile Function (IIEF) questionnaires and penile color Doppler ultrasonography are commonly performed. In this study, the total IIEF scores and erectile function domain scores of the IIEF were compared with the etiology diagnosed from the indices of penile color Doppler ultrasonography.
MATERIALS AND METHODS
A total of 54 patients, with erectile dysfunction, who underwent penile color Doppler ultrasonography and IIEF, were retrospectively examined. Various blood flow parameters, including the peak systolic velocity, end diastolic velocity, mean flow rate and resistive index, were observed and recorded for about 30 minutes following an intracorporeal injection of alprostadil and self stimulation. According to the causes of the erectile dysfunction, as diagnosed with penile color Doppler ultrasonography, the total IIEF and erectile function domain scores of the IIEF were compared.
RESULTS
There was no statistically significant difference in the total IIEF and IIEF scores of the erectile function domain between the causes of erectile dysfunction as diagnosed by the penile color Doppler ultrasonography.
CONCLUSIONS
The IIEF scores did not statistically differentiate the specific etiologies of erectile dysfunction determined by penile color Doppler ultrasonography. Therefore, it is believed that the IIEF score alone cannot predict the etiologies of erectile dysfunction.