光学相干断层扫描血管造影中的伪像及伪像去除
Artifacts and artifact removal in optical coherence tomographic angiography.
作者信息
Hormel Tristan T, Huang David, Jia Yali
机构信息
Casey Eye Institute, Oregon Health & Science University, Portland, OR, USA.
Department of Biomedical Engineering, Oregon Health & Science University, Portland, OR, USA.
出版信息
Quant Imaging Med Surg. 2021 Mar;11(3):1120-1133. doi: 10.21037/qims-20-730.
Abstract
Optical coherence tomographic angiography (OCTA) enables rapid imaging of retinal vasculature in three dimensions. While the technique has provided quantification of healthy vessels as well as pathology in several diseases, it is not unusual for OCTA data to contain artifacts that may influence measurement outcomes or defy image interpretation. In this review, we discuss the sources of several OCTA artifacts-including projection, motion, and signal reduction-as well as strategies for their removal. Artifact compensation can improve the accuracy of OCTA measurements, and the most effective use of the technology will incorporate hardware and software that can perform such correction.
摘要
光学相干断层扫描血管造影（OCTA）能够对视网膜血管系统进行快速三维成像。虽然该技术已实现对健康血管以及多种疾病中的病变进行定量分析，但OCTA数据中出现可能影响测量结果或妨碍图像解读的伪像并不罕见。在本综述中，我们讨论了几种OCTA伪像的来源，包括投影、运动和信号衰减，以及去除这些伪像的策略。伪像补偿可提高OCTA测量的准确性，而对该技术的最有效应用将包括能够进行此类校正的硬件和软件。
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