2型新生血管光凝后的光学相干断层扫描血管造影
OPTICAL COHERENCE TOMOGRAPHY ANGIOGRAPHY AFTER PHOTOCOAGULATION OF TYPE 2 NEOVASCULARIZATION.
作者信息
Arya Malvika, Cole Emily D, Novais Eduardo A, Louzada Ricardo N, Waheed Nadia K, Duker Jay S
机构信息
New England Eye Center, Tufts Medical Center, Tufts University, Boston, Massachusetts.
Department of Ophthalmology, Federal University of São Paulo, São Paulo, Brazil.
出版信息
Retin Cases Brief Rep. 2018;12(4):275-278. doi: 10.1097/ICB.0000000000000511.
PURPOSE
To illustrate errors in the automated segmentation image analysis of optical coherence tomography angiography after laser photocoagulation therapy for Type 2 neovascularization.
METHODS
This case report describes a patient with extrafoveal Type 2 neovascularization treated with argon laser photocoagulation evaluated before and after treatment by optical coherence tomography angiography.
RESULTS
Disrupted retinal layers after laser photocoagulation therapy lead to segmentation errors.
CONCLUSION
Images of optical coherence tomography angiography are prone to degradation by artifacts in cases in which there is disruption of the retinal layers. Clinicians must be aware of these errors because they can be misinterpreted as active Type 2 neovascularization. Improvement in optical coherence tomography angiography image analysis to minimize automated segmentation errors needs to be further explored.
目的
阐述2型新生血管激光光凝治疗后光学相干断层扫描血管造影自动分割图像分析中的误差。
方法
本病例报告描述了一名患有黄斑外2型新生血管的患者，接受氩激光光凝治疗，并在治疗前后通过光学相干断层扫描血管造影进行评估。
结果
激光光凝治疗后视网膜层的破坏导致分割误差。
结论
在视网膜层受到破坏的情况下，光学相干断层扫描血管造影图像容易因伪影而退化。临床医生必须意识到这些误差，因为它们可能被误判为活跃的2型新生血管。需要进一步探索改进光学相干断层扫描血管造影图像分析以尽量减少自动分割误差。
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