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Experimental unit for in vivo measurement of hemoglobin content in blood

机译:体内测量血液中血红蛋白含量的实验装置

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The experimental unit was developed for non-invasive in vivo measurement of blood hemoglobin concentration based on algorithms of pulse wave signals processing. Experiments were performed with two types of sensors: five-bands sensor (660, 756, 779, 841 and 963 nm) and seven-bands sensor (520, 658, 776, 839, 974, 1348, 1550 nm). Additional bands in infrared region allow to estimate the water concentration and enhance the accuracy of hemoglobin content measurement. The unit was tested on a group of patients with various hematological pathologies. The total number of patients exceeds 200 people and hemoglobin concentration varied in a range 80-170 g/L. Optimal algorithms with minimum variance of the difference between optical and laboratory measurements of hemoglobin content were found. It was shown that the accuracy of the hemoglobin content determination greatly depends on hematocrit.
机译:实验单元是根据脉搏波信号处理算法开发的,用于非侵入性体内血液中血红蛋白浓度的测量。用两种类型的传感器进行了实验:五波段传感器(660、756、779、841和963 nm)和七波段传感器(520、658、776、839、974、1348、1550 nm)。红外区域中的其他条带可以估计水的浓度并提高血红蛋白含量测量的准确性。该单元在一组患有各种血液病理学的患者身上进行了测试。患者总数超过200人,血红蛋白浓度在80-170 g / L范围内变化。发现了在光学和实验室血红蛋白含量测量值之间差异最小的最佳算法。结果表明,血红蛋白含量测定的准确性很大程度上取决于血细胞比容。

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