目的 研究探讨彩色多普勒超声应用于评估糖尿病患者发生勃起功能障碍(erectile dysfunction，ED)的临床价 值。方法 选择2015年1月至2016年1月期间我院收治的2型糖尿病合并ED患者50例为观察组，50例未合并ED的2型糖 尿病患者为对照组，比较两组一般资料、超声检测指标，并观察超声对ED的诊断效力。结果 观察组病程长于对照 组，FPG及HbAlc高于对照组，差异具有统计学意义(P＜0.05)。两组年龄、BMI间无统计学差异(P＞0.05)。观察组 PSV、EDV、D及RI均显著低于对照组，差异有统计学意义(P＞0.05)。以临床诊断为金标准，超声诊断诊断敏感度 88.0%，特异度92.0%，误诊率8.0%，漏诊率12.0%，诊断符合率90.0%。结论 彩色多普勒超声可直观、快捷地获取 糖尿病患者阴茎深动脉的内径及血流动力学变化情况，有助于为临床早期干预糖尿病性ED提供科学依据。

Objective To investigate the clinical value of color Doppler ultrasonography in the evaluation of dysfunction ED in patients with diabetes mellitus. Methods 50 patients with type 2 diabetes mellitus complicated with ED in our hospital from January 2011 to December 2013 were selected as observation group, 50 patients with type 2 diabetes without ED were chosen as control group. The general information, ultrasonic testing indicators and the effect of ultrasound on the diagnosis of ED between groups were observed and compared. Results The duration of the observation group was longer than that of the control group, FPG and HbAlc were higher than the control group, the difference was statistically significant (P<0.05). There were no significant difference between the two groups in age and BMI (P>0.05). The PSV, EDV, D and RI of observation group were significantly lower than the control group, the difference was statistically significant (P>0.05). Gold standard for clinical diagnosis, The sensitivity of ultrasound diagnosis and diagnosis was 88.0%, the specificity was 92.0%, the misdiagnosis rate was 8.0%, the missed diagnosis rate was 12.0%, the diagnostic accordance rate was 90.0%. Conclusion Color Doppler ultrasound can directly and quickly get the inner diameter and hemodynamic changes of the penile deep artery in patients with diabetes mellitus, it’s helpful to provide scientific basis for early clinical intervention of diabetic ED.