Hormel Tristan T, Huang David, Jia Yali
Casey Eye Institute, Oregon Health and Science University, Portland, OR, USA.
Department of Biomedical Engineering, Oregon Health and Science University, Portland, OR, USA.
Transl Vis Sci Technol. 2025 Mar 3;14(3):6. doi: 10.1167/tvst.14.3.6.
Optical coherence tomography angiography (OCTA) is a signal processing and scan acquisition approach that enables OCT devices to clearly identify vascular tissue down to the capillary scale. As originally proposed, OCTA included several important limitations, including small fields of view relative to allied imaging modalities and the presence of confounding artifacts. New approaches, including both hardware and software, are solving these problems and can now produce high-quality angiograms from tissue throughout the retina and choroid. Image analysis tools have also improved, enabling OCTA data to be quantified at high precision and used to diagnose disease using deep learning models. This review highlights these advances and trends in OCTA technology, focusing on work produced since 2020.
光学相干断层扫描血管造影（OCTA）是一种信号处理和扫描采集方法，它使OCT设备能够清晰识别直至毛细血管水平的血管组织。最初提出时，OCTA存在几个重要局限性，包括相对于相关成像方式而言视野较小以及存在混淆伪影。包括硬件和软件在内的新方法正在解决这些问题，现在能够从整个视网膜和脉络膜的组织中生成高质量血管造影图像。图像分析工具也有所改进，使得能够高精度量化OCTA数据，并利用深度学习模型用于疾病诊断。本综述重点介绍了自2020年以来产生的研究成果，突出了OCTA技术的这些进展和趋势。
