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目的 :应用彩色多普勒显像 (color Doppler flow imaging,CDFI)检测糖尿病患者 ,以探讨其血液动力学变化 ,提供有参考价值的数据。方法 :应用 CDFI检测了 30例糖尿病患者和 5 0例正常对照组的眼动脉 (ophthalmic artery,OA)视网膜中央动脉(central retinal artery,CRA)的收缩期血流峰速 (peak systolic velocity,Vs) ,舒张末期流速 (end diastolic velocity,Vd) ,平均流速 (mean envelopetvelocity,Vm) ,血管阻力指数 (resitance index,RI)和搏动指数 (pulse index,PI)。结果 :与对照组比较有或无糖尿病视网膜病变 (diabetic retinopathy,DR)糖尿病组 OA和 CRA的 Vs、Vd降低 (p<0 .0 5 ) RI增加 (p<0 .0 5 )。结论 :糖尿病患者的 OA和 CRA血流速度降低 ,视网膜循环阻力升高 ,视网膜血液供应不良。
OBJECTIVE: To detect diabetic patients by color Doppler flow imaging (CDFI) to explore the hemodynamic changes and provide valuable data. Methods: The systolic velocity (Vs) of systolic central retinal artery (CRA) in ophthalmic artery (OA) of 30 diabetic patients and 50 normal controls were detected by CDFI. , End diastolic velocity (Vd), mean envelopetvelocity (Vm), resitance index (RI) and pulse index (PI). Results: Compared with the control group, the Vs and Vd of OA and CRA decreased (p <0.05) in diabetic retinopathy patients with and without diabetic retinopathy (DR) (p <0.05). Conclusion: The blood flow velocity of OA and CRA in diabetic patients is decreased, the retinal circulation resistance is increased, and the retinal blood supply is poor.