光学相干层析的三维血管成像方法及其算法  

Methods and Algorithms of OCTA

作　　者：郭晋豪 李阳 刘智明 钟会清 郭周义 庄正飞 GUO Jinhao;LI Yang;LIU Zhiming;ZHONG Huiqing;GUO Zhouyi;ZHUANG Zhengfei(SATCM Third Grade Laboratory of Chinese Medicine and Photonics Technology&Guangdong Provincial Key Laboratory of Laser Life Science,College of Biophotonics,South China Normal University,Guangzhou 510631,China)

机构地区：[1]国家中医药管理局中医药与光子技术三级实验室&广东省激光生命科学重点实验室,华南师范大学生物光子学研究院,广州510631

出　　处：《激光生物学报》2020年第5期385-391,共7页Acta Laser Biology Sinica

基　　金：国家自然科学基金项目(61675072,61335011)。

摘　　要：光学相干层析血管造影(OCTA)以光学相干层析(OCT)为基础,是一种新型、无损、快速、安全的三维血管成像技术。OCTA成像的方法有多种,根据其算法使用的OCT信号信息可将其分为基于相位、振幅和复合信号3种类型。本文在描述各类型的成像原理、算法及其优缺点后,对3种类型的OCTA方法进行了比较,其中使用复合信号的类型成像质量最好。同时,结合OCTA的研究进展对其未来的发展进行了展望。Based on OCT,OCTA is a newly invented,non-invasive,fast and safe technology of volumetric imaging about blood flow.According to the OCT signal information they use,methods of OCTA can be divided into three categories:phase based algorithms,amplitude based algorithms and complex algorithms.After depicting the imaging principle,specific algorithm and advantages/disadvantages,methods of these three categories are compared in which complex category achieve best performance on imaging.Research progress is combined to discuss the prospect of OCTA.

关 键 词：光学相干层析血管造影 光学相干层析 算法 荧光素血管造影 

分 类 号：R770.4[医药卫生—眼科]