Anvari Pasha, Ashrafkhorasani Maryam, Habibi Abbas, Falavarjani Khalil Ghasemi
Eye Research Center, The Five Senses Institute, Rassoul Akram Hospital, Iran University of Medical Sciences, Tehran, Iran.
Stem Cell and Regenerative Medicine Research Center, Iran University of Medical Sciences, Tehran, Iran.
J Ophthalmic Vis Res. 2021 Apr 29;16(2):271-286. doi: 10.18502/jovr.v16i2.9091. eCollection 2021 Apr-Jun.
We performed a comprehensive search of the published literature in PubMed and Google Scholar to identify types, prevalence, etiology, clinical impact, and current methods for correction of various artifacts in optical coherence tomography angiography (OCTA) images. We found that the prevalence of OCTA image artifacts is fairly high. Artifacts associated with eye motion, misidentification of retinal layers, projections, and low optical coherence tomography signal are the most prevalent types. Artifacts in OCTA images are the major limitations of this diagnostic modality in clinical practice and identification of these artifacts and measures to mitigate them are essential for correct diagnosis and follow-up of patients.
我们对PubMed和谷歌学术上发表的文献进行了全面检索，以确定光学相干断层扫描血管造影（OCTA）图像中各种伪像的类型、患病率、病因、临床影响以及当前的校正方法。我们发现OCTA图像伪像的患病率相当高。与眼球运动、视网膜层误识别、投影以及低光学相干断层扫描信号相关的伪像是最常见的类型。OCTA图像中的伪像是这种诊断方式在临床实践中的主要限制，识别这些伪像并采取措施减轻它们对于患者的正确诊断和随访至关重要。
