Motion-robust blood perfusion sensing by LDF with focus control

Hashimoto Masaaki; Taguchi Yoshihiro

doi:10.1615/ihtc16.bma.023497

Motion-robust blood perfusion sensing by LDF with focus control

Hashimoto Masaaki, Taguchi Yoshihiro

Department of System Design Engineering

Research output: Contribution to journal › Conference article › peer-review

Abstract

For endoscopic Laser Doppler flowmetry (LDF), motion artifacts present a serious challenge for clinical applications. We propose a motion-robust LDF method that eliminates motion artifacts by controlling the lens positon with a feedback signal representing tissue motion. This method could be applied to an endoscopic device with micro-electro-mechanical-systems (MEMS) technology. To demonstrate the feasibility of the proposed method, a bench-top apparatus was constructed, and a blood flow phantom was used as the measurement target. Experimental tests shows that the controlled lens was moved to the target position under phantom movement, and the detected perfusion signal were stabilized by the focus control.

Original language	English
Pages (from-to)	585-590
Number of pages	6
Journal	International Heat Transfer Conference
Volume	2018-August
DOIs	https://doi.org/10.1615/ihtc16.bma.023497
Publication status	Published - 2018 Jan 1
Event	16th International Heat Transfer Conference, IHTC 2018 - Beijing, China Duration: 2018 Aug 10 → 2018 Aug 15

Keywords

Bio and medical
Blood perfusion
Laser Doppler flowmety
Mass transfer
Measurement and instrumentation
Motion artifact

ASJC Scopus subject areas

Condensed Matter Physics
Mechanical Engineering
Fluid Flow and Transfer Processes

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title = "Motion-robust blood perfusion sensing by LDF with focus control",

abstract = "For endoscopic Laser Doppler flowmetry (LDF), motion artifacts present a serious challenge for clinical applications. We propose a motion-robust LDF method that eliminates motion artifacts by controlling the lens positon with a feedback signal representing tissue motion. This method could be applied to an endoscopic device with micro-electro-mechanical-systems (MEMS) technology. To demonstrate the feasibility of the proposed method, a bench-top apparatus was constructed, and a blood flow phantom was used as the measurement target. Experimental tests shows that the controlled lens was moved to the target position under phantom movement, and the detected perfusion signal were stabilized by the focus control.",

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AU - Yoshihiro, Taguchi

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AB - For endoscopic Laser Doppler flowmetry (LDF), motion artifacts present a serious challenge for clinical applications. We propose a motion-robust LDF method that eliminates motion artifacts by controlling the lens positon with a feedback signal representing tissue motion. This method could be applied to an endoscopic device with micro-electro-mechanical-systems (MEMS) technology. To demonstrate the feasibility of the proposed method, a bench-top apparatus was constructed, and a blood flow phantom was used as the measurement target. Experimental tests shows that the controlled lens was moved to the target position under phantom movement, and the detected perfusion signal were stabilized by the focus control.

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