老年ED病人阴茎背动脉横切面积和血流量研究

目的 :探讨老年人血流动力学因素在勃起功能障碍 (ED)中的作用。　方法 :随机抽取 40例勃起功能正常和 5 9例老年ED病人 ,先以脉冲超声波多普勒探测阴茎背动脉横切面图形和平均流速时间积分 ,再用微机图像扫描仪自动测量图形面积 ,最后计算出阴茎背动脉每分血流量。　结果 :勃起功能正常不同年龄组间阴茎背动脉横切面积和血流量均无显著性差异 (P >0 0 5 ) ;勃起功能正常与ED相同年龄两组间阴茎背动脉横切面积有显著性差异 (P <0 0 5 ) ,血流量有非常显著性差异 (P <0 0 1)。　结论 :血管横切面积缩小及血流量降低在老年ED流行病学中起重要作用。

Study of Dorsal Penile Arteries Section Area and Blood Flow Volume on Elderly Patients with Erectile Dysfunction

Objectives: To study the function about hemodynamics factors on elderly patients with erectile dysfunction(ED). Methods :Dorsal penile artery section figures and average velocity time integral(AVTI) of 40 normal elderly subjects and 59 elderly patients with ED selected randomly were scanned by pulsed ultrasound Doppler technique. The section figures areas were automatically measured by microcomputer image scanning instrument.Then the dorsal penile arteries blood flow volume was calculated according to the formula. Results: The dorsal penile arteries section area and blood flow volume of the elderly persons with normal erectile function had no significant difference between (60～65) and (66～71) years old groups ( P >0.05). But between normal erectile function group and ED group the dorsal penile arteries section area had significant difference (P <0.05), and the blood flow volume had much more significant difference between the two groups of the same age( P <0.01). Conclusions: The narrowed vessel section area and lowered blood flow volume play important roles on ED epidemiology of elderly patients.