检索历史 清除

视网膜静脉阻塞(RVO)是一种因视网膜静脉压力升高引起静脉纡曲扩张,继而出现视网膜内出血、水肿、硬性渗出等眼底表现的血管性疾病.OCT血管成像(OCTA)凭借无创、分辨率高以及可分层显示浅层、深层视网膜血管和量化视网膜血流密度、无灌注区大小等优势,已被广泛应用于包括RVO在内的视网膜血管性疾病的诊断中.OCTA除了可以提供疾病状态下视网膜微血管结构、血流灌注信息,增加临床医生对视网膜循环结构的认识,还可以在疾病的随访中用于评估疾病治疗的效果及病程中视网膜循环结构的改变.虽然目前OCTA尚不能完全替代眼底血管造影检查,但其已经为我们进一步了解RVO的发病机制、疾病进程及预后因素带来了更加丰富的信息.相信随着技术的进步,OCTA能为我们对RVO等视网膜血管性疾病的研究带来新的篇章.

Retinal vein occlusion (RVO) is a vascular disease characterized by intraretinal hemorrhage,edema and hard exudation,which is caused by increased retinal vein pressure.OCT angiography (OCTA) has been widely used in the diagnosis of retinal vascular diseases including RVO by virtue of non-invasive,high resolution and stratified display of superficial,deep retinal vessels and quantification of retinal vessel density and non-perfusion area size.OCTA can provide information of retinal microvascular structure and blood perfusion under the condition of disease,it also can be used to evaluate the effect of treatment and changes of retinal circulation during the course of disease follow-up.Although OCTA cannot replace fundus angiography completely,it has brought us more information about the pathogenesis,disease progression and prognostic factors of RVO.It is believed that with the progress of technology,OCTA will bring us a new chapter in the study of retinal vascular diseases including RVO.