An Unobtrusive and Calibration-free Blood Pressure Estimation Method using Photoplethysmography and Biometrics
An Unobtrusive and Calibration-free Blood Pressure Estimation Method using Photoplethysmography and Biometrics
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DOI：
10.1038/s41598-019-45175-2
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发表时间：
2019-06-13
影响因子：
4.6
通讯作者：
Song, Mingxuan
中科院分区：
文献类型：
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作者：
Xing, Xiaoman;Ma, Zhimin;Song, Mingxuan
我们引入了一种新颖的范例，无需校准即可以不显眼的方式光学测量血压 (BP)。该算法结合了光电体积描记法 (PPG) 波形分析和生物识别技术来估计血压，并在不同年龄、身高、体重和血压水平的受试者中进行了评估 (n = 1249)。在同一类别的年轻人群（50岁）中，SBP的拟合误差分别为12.8+/-9.0、0.5+/-8.2和-14.6+/-11.5mmHg。简单的个性化校准可显着减少拟合误差 (n = 147)，良好的外周灌注有助于提高拟合精度。总之，在某些人群中，PPG 可用于计算血压而无需校准。经过校准后，它显示出连续监测血压波动的巨大潜力，这可以带来巨大的经济和健康效益。
We introduce a novel paradigm to unobtrusively and optically measure blood pressure (BP) without calibration. The algorithm combines photoplethysmography (PPG) waveform analysis and biometrics to estimate BP, and was evaluated in subjects with various age, height, weight and BP levels (n = 1249). In the young population (50 years old) with the same categories, the fitting errors are 12.8 +/- 9.0, 0.5 +/- 8.2 and -14.6 +/- 11.5 mmHg for SBP respectively. A simple personalized calibration reduces fitting errors significantly (n = 147), and good peripheral perfusion helps to improve the fitting accuracy. In conclusion, PPG may be used to calculate BP without calibration in certain populations. When calibrated, it shows great potential to serially monitor BP fluctuation, which can bring tremendous economic and health benefits.