Abstract: Objective To study nomal valuels of PI, RI and S/D in healthy male penile dorsum artery(DA) and cavernosal artery (CA). Methods 257 healthy mature men were divided into 5 groups by age.Group 1: <30, n=65; Group 2: 30- 39, n=83; Group 3: 40- 49, n=61; Group 4: 50- 59, n=38; Group 5: ≥60, n=10. Hibateral PI, RI and S/D values of penile dorsum artery and cavernosal artery were examinedby Logidop(r)2 Type Digital Doppler Ultrasonography. Results There were no significant difference for PI,RI and S/D of penile dorsum artery and cavernosal artery not only in personal left and right artery butalso in different age groups. Normal values advised: ①LDA:PI 1.43- 3.43, RI 0.72～0.92, S/D 2.68- 10.56.②RDA PI 1.47- 3.47, RI 0.73- 0.93, S/D 3.27- 10.09. ③LCA:PI 1.49- 3.21, RI 0.74- 0.90, S/D 3.17- 9.55.④RCA:PI 1.93- 3.27, RI 0.72- 0.90, S/D 3.22- 9.42. Conclusion Doppler ultrasonography is a favorablemethod in filtering penile arterial function.

Key words: impotence, arterial blood flow, Doppler ultrasonography