High-speed submillimeter magnetic-driven rotational scanning side-imaging OCT probe.

Autor: Zhang C; School of Biomedical Engineering, Biomedical Instrument Institute, Shanghai Jiao Tong University, Shanghai, China., Yang F; School of Biomedical Engineering, Biomedical Instrument Institute, Shanghai Jiao Tong University, Shanghai, China., Wang F; School of Biomedical Engineering, Biomedical Instrument Institute, Shanghai Jiao Tong University, Shanghai, China., Tan Q; School of Biomedical Engineering, Biomedical Instrument Institute, Shanghai Jiao Tong University, Shanghai, China., He H; School of Biomedical Engineering, Biomedical Instrument Institute, Shanghai Jiao Tong University, Shanghai, China., Zhang S; School of Biomedical Engineering, Biomedical Instrument Institute, Shanghai Jiao Tong University, Shanghai, China., Wu J; Biophotonics Laboratory, University of Michigan - Shanghai Jiao Tong University Joint Institute, Shanghai Jiao Tong University, Shanghai, China., Tu S; School of Biomedical Engineering, Biomedical Instrument Institute, Shanghai Jiao Tong University, Shanghai, China.
Jazyk: angličtina
Zdroj: Journal of biophotonics [J Biophotonics] 2023 Oct; Vol. 16 (10), pp. e202300106. Date of Electronic Publication: 2023 Jul 06.
DOI: 10.1002/jbio.202300106
Abstrakt: A high-speed side-imaging magnetic-driven scanning (MDS) probe is proposed for endoscopic optical coherence tomography (OCT). In the distal end of the probe, a reflecting micromirror is attached to a tiny magnet, which is driven by an external fast-rotating magnetic field to achieve unobstructed 360-degree side-view scanning. A prototype probe was fabricated with an outer diameter of 0.89 mm. Using the prototype probe, OCT images of an ex vivo porcine artery with implanted stent were acquired in 100 frames per second. The OCT engine was a swept-source system, and the system sensitivity with the prototype probe was 95 dB with an output power of 6 mW. The axial and lateral resolutions of the system were 10.3 and 39.7 μm, respectively. The high-speed submillimeter MDS-OCT probe provides a promising alternative endoscopic OCT solution for intravascular imaging applications.
(© 2023 Wiley-VCH GmbH.)
Databáze: MEDLINE
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