トップハット変換を用いた光干渉断層血管撮影画像における径別流路長の解析

カテゴリ: 論文誌(論文単位)

グループ名: 【E】センサ・マイクロマシン部門

発行日: 2020/03/01

タイトル(英語): An Analysis of Caliber-Specific Blood Flow Path Length in Optical Coherence Tomography Angiography Using Morphological Top-Hat Transform

著者名: 早見　武人（岡山大学大学院自然科学研究科），中尾　新太郎（九州大学医学部眼科学教室），海津　嘉弘（九州大学医学部眼科学教室），園田　康平（九州大学医学部眼科学教室）

著者名(英語): Takehito Hayami (Graduate School of Natural Science and Technology, Okayama University), Shintaro Nakao (Department of Ophthalmology, Graduate School of Medical Sciences, Kyushu University), Yoshihiro Kaizu (Department of Ophthalmology, Graduate School of Medical Sciences, Kyushu University), Koh-Hei Sonoda (Department of Ophthalmology, Graduate School of Medical Sciences, Kyushu University)

キーワード: 光干渉断層法，形態学的画像処理，血管造影，糖尿病　　OCT，Morphological image analysis，Angiography，Diabetes

要約(英語): Optical coherence tomography angiography has a function to visualize the blood flow of multi-layered retinal capillary plexus by layer. OCTA signals would be more utilized if they are associated with blood flow dynamics of each layer. In this study, morphological top-hat transform was applied for OCTA en face retinal images of superficial and deep layers obtained from patients of diabetic retinopathy and controls to quantify the caliber-specific flow path length. As a result, the total length of the thick flow paths in deep layer more strongly reflected the progress of retinopathy than that in superficial layer. Supposing the thick flow paths observed in deep layer OCTA as a superposition of multiple capillaries, this trend seemed to be a possible expression of partial clogs of the capillary network.

本誌: 電気学会論文誌E（センサ・マイクロマシン部門誌） Vol.140 No.3 （2020） 特集：光を基盤技術とした生体センシング

本誌掲載ページ: 70-71 p

原稿種別: 研究開発レター／日本語

電子版へのリンク: https://www.jstage.jst.go.jp/article/ieejsmas/140/3/140_70/_article/-char/ja/