高血压病眼动脉血流变化的多普勒超声观察

A Study on Blood Flow Variation in Doppler Ultrasoundgraph of Optic Artery of Hypertension Patients

目的 :对高血压患者眼动脉血流进行了检测研究 ,以探讨血流参数变化与病理改变、病程发展的关系 ,寻找最敏感、重复性最好的血流参数指标。方法 :应用彩色多普勒超声仪对 5 2例原发性高血压病患者 10 4只眼及 2 9例正常对照者 5 8只眼的各项参数进行测量并行显著性检验。结果 :1)高血压病患者舒张末期血流速度 (Vd)及阻力指数 (RI)的改变最为明显 ,P <0 .0 5。 2 )眼底分级与眼动脉血流关系 :Ⅱ级组Vd缺如发生率为 18 8% (6 / 32 ) ,Ⅲ级组Vd缺如发生率为93 3 % (10 / 12 ) ,RI显著升高 ,P <0 0 5。结论 :1)高血压病眼动脉血流供应改变主要是舒张末期血流减少 ,且与病情成正相关。 2 )眼动脉血流频谱观察尤其是舒张末期速度 (Vd)和阻力指数 (RI)可较准确地反映高血压病外周阻力及血供状况。

Objective:The lesions of tiny and small arteries is the major pathological change of hypertension disease,and the optic-bulb vessels are the ideal position to observe directly the changes both in the tiny vessels and the dynamics of blood flow.The purpose of studying every parameter of optical artery is to find the most sensitive and the repeatedly best parameter.Methods:To study the blood flow of optical artery of 52 hypertention cases and 29 controls by using the color doppler ultrasoundgraph.Results:The blood circulation of optical artery in hypertention cases showed a lower blood flow velocity and higher resistance,the blood flow velocity at the end-diastolic period and the resistance index were the most sensitive (P<0.05).Conclusion:The non-invasion study of color doppler ultrasoundgraph is of important value in estimating the extent of influence of hypertension on optical artery in the early stage.The result is in accordance with their pathological changes,and related to the development of disease duration.