The Proceedings of the Fluids engineering conference
Online ISSN : 2424-2896
2009
Session ID : 1605
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1605 Visualization of Nailfold Micro-circulation Using High-speed Video Capillaroscopy
Masao WATANABEYuuki NAKAMURAHironori SANOHisao YAGUCHI
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CONFERENCE PROCEEDINGS FREE ACCESS

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Abstract
Capillaroscopy is a "lens" that is able to observe capillary loops of blood vessels in the human finger skin nail fold, of which blood flow can be easily visualized, and has been long used for clinical diagnosis. We have been developing digital high speed video capillaroscopy by integrating to high-speed high-sensitivity video camera with deep-focus zoom lens. We discuss quantitative evaluation of blood velocity in both arteriol and venule of human nailfold microcirculation, using two different methods, namely, plasma gap tracking method and fixed point observation method with correlation.
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© 2009 The Japan Society of Mechanical Engineers
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