Fast endoscopic OCTA imaging using proximal scanning catheter

Chen Niu; Zehua Guan; Huanhuan Yu; Teng Ma; Cuixia Dai

doi:10.1117/12.2689123

27 November 2023 Fast endoscopic OCTA imaging using proximal scanning catheter

Chen Niu, Zehua Guan, Huanhuan Yu, Teng Ma, Cuixia Dai

Proceedings Volume 12770, Optics in Health Care and Biomedical Optics XIII; 127703F (2023) https://doi.org/10.1117/12.2689123
Event: SPIE/COS Photonics Asia, 2023, Beijing, China

Conference Poster

Abstract

In this study, we proposed a fast endoscopic OCTA using proximal scanning catheter based on B-scan scheme and a customed image registration algorithm. Image registration based on the similarity between adjacent B-scan frames was utilized to reduce the impact of external motor vibrations and improve image quality. Based on the registered images at the same scanning position, the speckle variance (SVAR) algorithm was employed to calculate variation of OCT intensity signals. Finally, en face OCTA images were generated. Preliminary results of endoscopic OCTA performance using microfluidic phantom proved the feasibility of the proposed technique.

(2023) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Chen Niu, Zehua Guan, Huanhuan Yu, Teng Ma, and Cuixia Dai "Fast endoscopic OCTA imaging using proximal scanning catheter", Proc. SPIE 12770, Optics in Health Care and Biomedical Optics XIII, 127703F (27 November 2023); https://doi.org/10.1117/12.2689123

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