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目的探讨视网膜静脉阻塞（ｒｅｔｉｎａｌｖｅｉｎｏｃｃｌｕｓｉｏｎ，ＲＶＯ）患者视网膜中央动脉（ｃｅｎｔｒａｌｒｅｔｉ－ｎａｌａｒｔｅｒｙ，ＣＲＡ）和视网膜中央静脉（ｃｅｎｔｒａｌｒｅｔｉｎａｌｖｅｉｎ，ＣＲＶ）血流动力学特征及其意义。方法使用ＡＴＬ－ＨＤＩ３０００彩色多普勒诊断仪，检测ＲＶＯ患者患眼４８只、对侧临床健康眼３９只及正常对照眼４０只的ＣＲＡ收缩期峰值血流速度（ｐｅａｋｓｙｓｔｏｌｉｃｖｅｌｏｃｉｔｙ，ＰＳＶ）、舒张末期血流速度（ｅｎｄ－ｄｉａｓｔｏｌｉｃｖｅｌｏｃｉｔｙ，ＥＤＶ）和血管搏动指数（ｐｕｌｓａｔｉｌｉｔｙｉｎｄｅｘ，ＰＩ），ＣＲＶ最大血流速度（ｍａｘｉｍｕｎｖｅｌｏｃｉｔｙ，Ｖｍａｘ）。结果ＲＶＯ患眼、对侧临床健康眼ＣＲＡ的ＰＳＶ和ＥＤＶ均显著低于正常对照眼，ＲＶＯ患眼ＰＩ显著高于正常对照眼；ＲＶＯ患眼ＣＲＡ的ＰＳＶ显著低于ＲＶＯ对侧临床健康眼，ＲＶＯ患眼ＰＩ显著高于ＲＶＯ对侧临床健康眼；ＲＶＯ患眼、对侧临床健康眼ＣＲＶ的Ｖｍａｘ均显著低于正常对照眼。结论ＲＶＯ患眼和对侧临床健康眼血流动力学异常。彩色多普勒成像技术可作为其早期诊断的重要手段
Objective To investigate the hemodynamic characteristics of central retinal central artery (CRA) and central retinal vein (CRV) in patients with retinal vein occlusion (RVO) and its significance. Methods The ATL-HDI3000 color Doppler diagnostic apparatus was used to detect the peak systolic velocity (PSV), end-diastolic blood pressure (CRV) of 48 RVO patients, 39 contralateral healthy eyes and 40 normal control eyes. The end-diastolicvelocity (EDV) and pulsatility index (PI) and the maximal velocity of CRV (Vmax) were measured. Results The PSV and EDV of CRA in RVO eyes were significantly lower than those in normal control eyes. The RV in eyes with RVO was significantly higher than that in controls. The PSV of CRA in RVO eyes was significantly lower than that in RVO contralateral eyes. RVO eyes PI was significantly higher than RVO contralateral clinical healthy eyes; RVO eyes, contralateral clinical healthy eyes CRV Vmax were significantly lower than the control eyes. Conclusions RVO is associated with hemodynamic abnormalities in the ocular and contralateral healthy eyes. Color Doppler imaging technology can be used as an important means of its early diagnosis