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Non-invasive measurement of hemoglobin concentration using magnetic plethysmo gram
Sivaprakasam Mohanasankar,
Published in Institute of Electrical and Electronics Engineers Inc.
2016
Abstract
A method for determining the concentration of hemoglobin in arterial blood, non invasively, is explored in this paper. A permanent magnet is placed just above the radial artery of a person whose hemoglobin concentration is to be ascertained. The flux produced by the permanent magnet (that links with the blood flow in the radial artery) is sensed to obtain a signal called magnetic plethysmogram (MPG). In this paper, an analytical model for a magnetic plethysmogram is derived. Using the proposed analytical model, a method of estimation of the concentration of hemoglobin in arterial blood is derived. The proposed method is then validated through a limited clinical study. The results of the clinical study establish the viability of measuring hemoglobin concentration, noninvasively, using magnetic plethysmogram. © 2016 IEEE.
Concepts (16)
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    Analytical models
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    Blood
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    Hemodynamics
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    Magnetism
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    Magnets
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    Permanent magnets
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    PLETHYSMOGRAPHY
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    ARTERIAL BLOOD
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    Blood flow
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    BLOOD VOLUME PULSE
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    CLINICAL STUDY
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    HEMOGLOBIN CONCENTRATION
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    NONINVASIVE MEASUREMENTS
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    PLETHYSMOGRAM
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    RADIAL ARTERY
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    Hemoglobin