Relation between hematocrit and optical density in pulse oximetry -In vitro study with Waseda mock circulatory system

H. Suzaki, N. Kobayashi, H. Kubota, T. Aomi, T. Nagaoka, Kiyotaka Iwasaki, Mitsuo Umezu, S. Takeda, A. Uchiyama

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

    5 Citations (Scopus)

    Abstract

    Optical properties of living tissues have not been well established even today, and bioopticinstrumentations have to be based on empirical formulae. In order to examine optical properties of the tissue having pulsating blood perfusion, we investigated the relation between optical density (defined as O.D.) of whole blood and hematocrit by transmission spectrophotometry. We used Waseda mock circulatory system that simulates blood circulation in the tissue. It was found that with increasing light path length, O.D. per unit light path length due to scattering and absorption effect, tended to become constant in each hematocrit. For wavelengths of 660, 805 and 940 nm, the relations between O.D. of whole blood and hematocrit predicted by Twersky's equation, Loewinger's equation and photon diffusion equation fitted to the data obtained. Meanwhile, for 1300 nm, the relation predicted by Loewinger's equation gave the best fit to the data.

    Original languageEnglish
    Title of host publicationAnnual International Conference of the IEEE Engineering in Medicine and Biology - Proceedings
    Pages2626-2629
    Number of pages4
    Volume7 VOLS
    Publication statusPublished - 2005
    Event2005 27th Annual International Conference of the Engineering in Medicine and Biology Society, IEEE-EMBS 2005 - Shanghai
    Duration: 2005 Sep 12005 Sep 4

    Other

    Other2005 27th Annual International Conference of the Engineering in Medicine and Biology Society, IEEE-EMBS 2005
    CityShanghai
    Period05/9/105/9/4

    Fingerprint

    Density (optical)
    Blood
    Tissue
    Optical properties
    Spectrophotometry
    Hemodynamics
    Photons
    Scattering
    Wavelength

    ASJC Scopus subject areas

    • Bioengineering

    Cite this

    Suzaki, H., Kobayashi, N., Kubota, H., Aomi, T., Nagaoka, T., Iwasaki, K., ... Uchiyama, A. (2005). Relation between hematocrit and optical density in pulse oximetry -In vitro study with Waseda mock circulatory system. In Annual International Conference of the IEEE Engineering in Medicine and Biology - Proceedings (Vol. 7 VOLS, pp. 2626-2629). [1617008]

    Relation between hematocrit and optical density in pulse oximetry -In vitro study with Waseda mock circulatory system. / Suzaki, H.; Kobayashi, N.; Kubota, H.; Aomi, T.; Nagaoka, T.; Iwasaki, Kiyotaka; Umezu, Mitsuo; Takeda, S.; Uchiyama, A.

    Annual International Conference of the IEEE Engineering in Medicine and Biology - Proceedings. Vol. 7 VOLS 2005. p. 2626-2629 1617008.

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

    Suzaki, H, Kobayashi, N, Kubota, H, Aomi, T, Nagaoka, T, Iwasaki, K, Umezu, M, Takeda, S & Uchiyama, A 2005, Relation between hematocrit and optical density in pulse oximetry -In vitro study with Waseda mock circulatory system. in Annual International Conference of the IEEE Engineering in Medicine and Biology - Proceedings. vol. 7 VOLS, 1617008, pp. 2626-2629, 2005 27th Annual International Conference of the Engineering in Medicine and Biology Society, IEEE-EMBS 2005, Shanghai, 05/9/1.
    Suzaki H, Kobayashi N, Kubota H, Aomi T, Nagaoka T, Iwasaki K et al. Relation between hematocrit and optical density in pulse oximetry -In vitro study with Waseda mock circulatory system. In Annual International Conference of the IEEE Engineering in Medicine and Biology - Proceedings. Vol. 7 VOLS. 2005. p. 2626-2629. 1617008
    Suzaki, H. ; Kobayashi, N. ; Kubota, H. ; Aomi, T. ; Nagaoka, T. ; Iwasaki, Kiyotaka ; Umezu, Mitsuo ; Takeda, S. ; Uchiyama, A. / Relation between hematocrit and optical density in pulse oximetry -In vitro study with Waseda mock circulatory system. Annual International Conference of the IEEE Engineering in Medicine and Biology - Proceedings. Vol. 7 VOLS 2005. pp. 2626-2629
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    AU - Kubota, H.

    AU - Aomi, T.

    AU - Nagaoka, T.

    AU - Iwasaki, Kiyotaka

    AU - Umezu, Mitsuo

    AU - Takeda, S.

    AU - Uchiyama, A.

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