Characteristics and classification of type 3 neovascularization with B-scan flow overlay and En face flow images of optical coherence tomography angiography

Keiko Kataoka, Jun Takeuchi, Yuyako Nakano, Ai Fujita, Hiroki Kaneko, Yasuki Ito, Hiroko Terasaki

研究成果: Article査読

1 被引用数 (Scopus)

抄録

Purpose: To study B-scan flow overlay and en face flow optical coherence tomography angiography (OCT-A) images of Type 3 neovascularization (NV) and to characterize a staging system for Type 3 NV based on the OCT-A findings. Methods: We retrospectively collected data on consecutive treatment-naive eyes with Type 3 NV. All eyes underwent fluorescein angiography, indocyanine green angiography, structural spectral domain OCT, and OCT-A (AngioPlex). Localization and extension of abnormal flows detected by B-scan flow overlay and en face OCT-A images were assessed. Results: Of 24 eyes of 22 patients with Type 3 NV, B-scan flow overlay images showed that 4.2% had telangiectatic flow in the deep retinal layer without outer plexiform layer disruption (Stage 1), 8.3% had downward intraretinal flow and subretinal flow without retinal pigment epithelium disruption (Stage 2), and 87.5% had downward flow and retinal pigment epithelium disruption (Stage 3). Of the Stage 3 eyes, 95.2% showed flow signal penetrating at the site of the retinal pigment epithelium disruption on the B-scan flow overlay images. Conclusion: We showed the characteristics of Type 3 NV using B-scan flow overlay and en face OCT-A images. B-scan flow overlay OCT-A images seem useful to improve the detection and accurate diagnosis of Type 3 NV.

本文言語English
ページ(範囲)109-120
ページ数12
ジャーナルRetina
40
1
DOI
出版ステータスPublished - 01-01-2020

All Science Journal Classification (ASJC) codes

  • 眼科学

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