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Non-Invasive Monitoring of Microvascular Oxygenation and Reactive Hyperemia using Hybrid, Near-Infrared Diffuse Optical Spectroscopy for Critical Care
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Non-Invasive Monitoring of Microvascular Oxygenation and Reactive Hyperemia using Hybrid, Near-Infrared Diffuse Optical Spectroscopy for Critical Care

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Development of an optical arterial hematocrit measurement method: pulse hematometry

Masamichi Nogawa1, Shinobu Tanaka, Ken-Ichi Yamakoshi

  • 1Faculty of Engineering, Kanazawa University, Ishikawa, JAPAN.

Conference Proceedings : ... Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE Engineering in Medicine and Biology Society. Annual Conference
|February 7, 2007
PubMed

The blood hematocrit is well recognized as the versatile index of various physiological conditions especially for anemia, polycythemia and dehydration. However, the conventional method of the hematocrit measurement was conducted with the direct blood sampling. In this study, based on the similar principle of the pulse oximetry, a simple principle of optical noninvasive hematocrit measurement method, pulse hematometry, was introduced. And the performance of the optical sensor evaluated with healthy subjects was also reported. Because of its simplicity, the pulse hematometry would be promising technique as patients monitoring and daily healthcare.

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