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目的通过对海绵体动脉横切面积和血流量的超声扫描测定,探讨两者的改变在勃起功能障碍(ED)中的作用。方法从西安地区干休所300多名自愿体检的老干部中筛查出20例ED患者,对照组单纯随机抽取勃起功能正常20例,先以脉冲超声波多普勒探测海绵体动脉横切面图形和平均流速时间积分;再用微机图象扫描仪自动测量图形面积,最后计算出海绵体动脉每分钟血流量。结果勃起功能正常与ED的相同年龄两组间海绵体动脉横切面积无显著差异(t=2.079-2.098,P>0.05),血流量有非常显著性差异(t=2.793-2.821,P<0.01)。结论根据血流动力学原理提示血管横切面积轻微缩小足以使血流量明显降低,这在老年ED流行病学中起着重要作用。
Objective To investigate the role of both changes in erectile dysfunction (ED) by ultrasound scanning of cavernous artery cross-sectional area and blood flow. Methods Twenty cases of ED patients were screened from more than 300 voluntary cadres in the dry-rest in Xi’an. The control group were randomly divided into 20 cases with normal erectile function. First, the cross-sectional area of corpus cavernosum was detected by pulsed ultrasound Doppler. Flow time integral; and then use the computer image scanner automatically measure the graphics area, and finally calculate the cavernous artery blood flow per minute. Results There was no significant difference in the cross-sectional area of cavernous artery between the two groups (t = 2.079-2.098, P> 0.05). The blood flow had significant difference (t = 2.793-2.821, P <0.01) ). Conclusions A slight reduction of the cross-sectional area of the blood vessels according to the hemodynamic principle is sufficient for a significant decrease in blood flow, which plays an important role in the epidemiology of ED in the elderly.