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 | |
| 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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Cite this
Masaaki, H., & Yoshihiro, T. (2018). Motion-robust blood perfusion sensing by LDF with focus control. International Heat Transfer Conference, 2018-August, 585-590. https://doi.org/10.1615/ihtc16.bma.023497