High dynamic range optical coherence tomography angiography (HDR-OCTA) | Zendy

Xiang Wei | Zendy; Tristan T. Hormel | Zendy; Shaohua Pi | Zendy; Yukun Guo | Zendy; Yifan Jian | Zendy; Yali Jia | Zendy

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High dynamic range optical coherence tomography angiography (HDR-OCTA)

Author(s) -

Xiang Wei,

Tristan T. Hormel,

Shaohua Pi,

Yukun Guo,

Yifan Jian,

Yali Jia

Publication year - 2019

Publication title -

biomedical optics express

Language(s) - Uncategorized

Resource type - Journals

SCImago Journal Rank - 1.362

H-Index - 86

ISSN - 2156-7085

DOI - 10.1364/boe.10.003560

Subject(s) - optical coherence tomography , dynamic range , high dynamic range , coherence (philosophical gambling strategy) , optics , range (aeronautics) , computer science , tomography , materials science , physics , quantum mechanics , composite material

The dynamic range of current optical coherence tomography (OCT) angiography (OCTA) images is limited by the fixed scanning intervals. High speed OCT devices introduce the possibility of extending the flow signal dynamic range. In this study, we created a novel scanning pattern for achieving high dynamic range (HDR)-OCTA with a superior scanning efficiency. We implemented a bidirectional, interleaved scanning pattern that is sensitive to different flow speeds by adjustable adjacent inter-scan time intervals. We found that an improved flow dynamic range can be achieved by generating 3 different B-scan time intervals using 3 repetitions.

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