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.
|ジャーナル||International Heat Transfer Conference|
|出版ステータス||Published - 2018|
|イベント||16th International Heat Transfer Conference, IHTC 2018 - Beijing, China|
継続期間: 2018 8月 10 → 2018 8月 15
ASJC Scopus subject areas