Using the characteristics of pulse waveform to enhance the accuracy of blood pressure measurement by a multi-dimension regression model

TY – JOUR

T1 – Using the characteristics of pulse waveform to enhance the accuracy of blood pressure measurement by a multi-dimension regression model

AU – Liu, Shing Hong

AU – Liu, Li Jen

AU – Pan, Kuo Li

AU – Chen, Wenxi

AU – Tan, Tan Hsu

N1 – Publisher Copyright:
© 2019 by the authors.

PY – 2019/7/1

Y1 – 2019/7/1

N2 – With the advancement of wearable technology, many physiological monitoring instruments are gradually being converted into wearable devices. However, as a consumer product, the blood pressure monitor is still a cuff-type device, which does perform a beat-by-beat continuous blood pressure measurement. Consequently, the cufless blood pressure measurement device was developed and it is based on the pulse transit time (PTT), although its accuracy remains inadequate. According to the cardiac hemodynamic theorem, blood pressure relates to the arterial characteristics and the contours of the pulse wave include some characteristics of the artery. Therefore, the purpose of this study was to use the contour characteristics of the pulses measured by photoplethysmography (PPG) to estimate the blood pressure using a linear multi-dimension regression model. Ten subjects participated in the experiment, and the blood pressure levels of the subjects were elevated by exercise. The results showed that the mean and standard deviation (mean ± SD) of the root mean square error of the estimated systolic and diastolic pressures within the best five parameters were 6.9 ± 2.81 mmHg and 4.0 ± 0.65 mmHg, respectively. Compared to the results that used one parameter, the PTT, for estimating the systolic and diastolic pressures, 8.2 ± 2.1 mmHg and 4.5 ± 0.79 mmHg, respectively, our results were better.

AB – With the advancement of wearable technology, many physiological monitoring instruments are gradually being converted into wearable devices. However, as a consumer product, the blood pressure monitor is still a cuff-type device, which does perform a beat-by-beat continuous blood pressure measurement. Consequently, the cufless blood pressure measurement device was developed and it is based on the pulse transit time (PTT), although its accuracy remains inadequate. According to the cardiac hemodynamic theorem, blood pressure relates to the arterial characteristics and the contours of the pulse wave include some characteristics of the artery. Therefore, the purpose of this study was to use the contour characteristics of the pulses measured by photoplethysmography (PPG) to estimate the blood pressure using a linear multi-dimension regression model. Ten subjects participated in the experiment, and the blood pressure levels of the subjects were elevated by exercise. The results showed that the mean and standard deviation (mean ± SD) of the root mean square error of the estimated systolic and diastolic pressures within the best five parameters were 6.9 ± 2.81 mmHg and 4.0 ± 0.65 mmHg, respectively. Compared to the results that used one parameter, the PTT, for estimating the systolic and diastolic pressures, 8.2 ± 2.1 mmHg and 4.5 ± 0.79 mmHg, respectively, our results were better.

KW – Characteristics of pulse wave

KW – Cuffless blood pressure measurement

KW – Multi-dimension regression model

KW – Photoplethysmography

UR – www.scopus.com/pages/publications/85078692487

U2 – 10.3390/app9142922

DO – 10.3390/app9142922

M3 – 文章

AN – SCOPUS:85078692487

SN – 2076-3417

VL – 9

JO – Applied Sciences (Switzerland)

JF – Applied Sciences (Switzerland)

IS – 14

M1 – 2922

ER –