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目的： 探讨彩色多普勒超声 （ＣＤＩ） 诊断糖尿病下肢动脉病变的价值。方法： 用彩色超声对糖尿病患者９６ 例， 正常对照组４２ 例， 进行双下肢动脉检查， 选用超９－ＨＤＩ超声诊断仪， 观察多项血流参数。结果： 糖尿病组较对照组下肢动脉硬化发生率明显增高 （Ｐ＜ ０．０１）， 发病年龄提前（Ｐ＜ ０．０５）， 足背动脉最先受累， 损伤最重。糖尿病组最大流速 （Ｖｍ ａｘ ）、血管内径 （Ｄ）、血流量 （Ｖｏｌ） 较对照组明显减少 （Ｐ＜ ０．０１）。阻力指数 （ＲＩ）、搏动指数（ ＰＩ） 两组间无显著差异 （Ｐ＞ ０．０５）。糖尿病患者血糖控制差组血管损伤程度较血糖控制较好组明显加重 （Ｐ＜０．０１）。９ 例糖尿病患者出现股动脉、腘动脉闭塞， 同期与血管照影对照， 病变部位及范围相符合。结论： 糖尿病患者下肢动脉有明显损伤， 动脉硬化发生率增高。ＣＤＩ诊断下肢动脉阻塞性病变准确、可信、有重要临床价值。
Objective: To investigate the value of color Doppler ultrasonography (CDI) in the diagnosis of diabetic lower extremity arterial disease. Methods: Ninety-six patients with diabetes mellitus and 42 patients with normal control were examined by color sonography. The arteries of both lower extremities were examined by ultrasonography. The blood flow parameters were observed. Results: Compared with the control group, the incidence of arteriosclerosis in lower extremities in diabetic group was significantly increased (P <0.01), and the age of onset was earlier (P <0.05). The dorsalis pedis artery was the first to be involved and the injury was heaviest. Diastolic blood pressure (Vm ax), blood vessel diameter (D) and blood flow (Vol) in diabetic group were significantly lower than those in control group (P <0.01). There was no significant difference between the two groups in resistance index (RI) and pulsatility index (PI) (P> 0.05). The degree of vascular damage in the poor blood glucose control group was significantly higher than that in the control group with good glycemic control (P <0.01). 9 cases of diabetic patients with femoral artery occlusion, occlusion, vascular contrast with the same period, the lesion location and extent of line. Conclusion: The lower extremity arteries of diabetic patients have obvious injury and the incidence of arteriosclerosis increases. CDI diagnosis of lower extremity arterial occlusive disease is accurate, credible, and has important clinical value.