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目的 应用彩色多普勒显像 (color Dopplor flow im aging,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)、舒张未期流速 (end diastolic velocity,Vd)、平均流速 (mean envelopet velocity,Vm )、血管阻力指数 (resitanceindex,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 Dopplor flow im aging (CDFI) to explore the hemodynamic changes and provide valuable data. Methods CDFI was used to detect the peak systolic velocity (Vs) of ophthalmic artery (OA) and central retinal artery (CRA) in 30 diabetics and 50 normal controls. , End diastolic velocity (Vd), mean envelopet velocity (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 with or 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.