Efficacy of a 3-Dimension HMD (Head Mounted Displayer) for Audiovisual Sexual Stimulation after Oral Phosphodiesterase Type 5 (PDE 5) Inhibitor Medication for the Diagnosis of Vasculogenic Erectile Dysfunction

Baek, Un Gi; Moon, Ki Hak

Abstract

PURPOSE: The AVSS with 3-D HMD is considered to provide a more realistic image and more comfortable circumstances in which the subjects are absorbed in the stimulation. We investigated the efficacy of using 3-D combined with oral medication and a stimulation (COS) test for the evaluation of vasculogenic erectile dysfunction (ED).
MATERIALS AND METHODS
66 patients with complaints of ED, 28 patients diagnosed with vasculogenic ED and 38 patients diagnosed with psychogenic ED were included in this study. The patients were randomly divided into the 2-D group and the 3-D group. The 2-D group patients were examined with using 2-D combined an injection and a stimulation (CIS) test. The 3-D group patients were examined with 3-D CIS test. Then a week later, the patients underwent the AVSS with 3-D HMD 1 hour after oral PDE 5 inhibitor medication. The degree of erection was monitored using the Nocturnal Electrobioimpedance Volumetric Assessment (NEVA) system.
RESULTS
On the 2-D CIS tests, 12 of 27 patients showed normal erection, and this resulted in a sensitivity and specificity of 72.7% and 56.3%, respectively. On the 3-D CIS tests, 20 of 39 patients showed normal erection and on the 3-D COS tests, 17 patients showed normal erection and this resulted in a sensitivity and specificity of 88.2% and 81.8%, and 94.1% and 72.7%, respectively. No significant difference were present in the results of the diagnosis between the 3-D CIS and 3-D COS tests.
CONCLUSIONS
Both the 3-D CIS and 3-D COS tests offer the advantage of higher sensitivity and specificity than the conventional CIS test. The 3-D COS test may be used as a substitute for the conventional CIS test due to its simplicity and less invasive nature.