光学相干断层扫描对视网膜疾病的诊断价值

发布时间：2018-01-05 19:35

本文关键词：光学相干断层扫描对视网膜疾病的诊断价值　出处：《眼科新进展》2015年01期 　论文类型：期刊论文

【摘要】：光学相干断层扫描技术(optical coherence tomography,OCT)以低相干光干涉原理获得二维或三维图像,此活体断层高分辨率成像技术可对多种视网膜疾病进行更为直观的观察评估。与眼底荧光造影、自发荧光、眼底成像等检查技术相比,OCT不仅可以准确的对视网膜厚度、神经纤维层厚度、神经节细胞层厚度等进行测量分析;而且en face多普勒OCT和OCT血管成像技术也已实现对眼底血流的量化分析。虽然OCT存在设备价格昂贵、图像质量对操作经验和屈光间质的依赖性、不同品牌设备之间正常人数据的不一致性等局限性,但随着OCT在硬件及软件方面的不断创新和改进,将逐步克服和完善某些局限性。
[Abstract]:Optical coherence tomography (coherence) technique is used to obtain 2D or 3D images based on the principle of low coherent optical interference. This technique can be used to evaluate many retinal diseases more intuitively, compared with fundus fluorescein, autofluorescence, fundus imaging and so on. OCT can not only accurately measure the retinal thickness, nerve fiber layer thickness, ganglion cell layer thickness, etc. Moreover, en face Doppler OCT and OCT angiography techniques have also achieved quantitative analysis of fundus blood flow, although OCT equipment is expensive. The dependence of image quality on operation experience and refractive stroma, the inconsistency of normal human data between different brand devices, etc., but with the continuous innovation and improvement of OCT in hardware and software. Some limitations will be gradually overcome and perfected.
【作者单位】：上海交通大学附属第六人民医院眼科;
【分类号】：R774.1
【正文快照】： 随着科技的进步和技术的不断改进,光学相干OCT而言,一方面频域已完全取代时域技术,另一方断层扫描系统(optical coherence tomography,OCT)目面临床应用也逐渐由结构性分析向功能性分析前已实现从时域向频域的跨越,目前已经可以实现转变。自然瞳孔下直接进行眼底状态的断层和

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