Study on Cuff-Less Blood Pressure Measurement Based on Electrocardiography and Photoplethysmography Signal

2019 ◽  
Vol 2 (3) ◽  
pp. 206-214
Author(s):  
Putri Indes Oktabriani ◽  
Fuad Ughi ◽  
Aulia Arif Iskandar
Keyword(s):  
Blood Pressure ◽  
Pressure Measurement ◽  
Blood Pressure Monitoring ◽  
Blood Pressure Measurement ◽  
Ecg Signal ◽  
Optimum Location ◽  
Blood Pressure Monitor ◽  
Pressure Monitor ◽  
Left Hand ◽  
Measure Blood Pressure

The continuous blood pressure measurement research is widely known for helpingthe development of ambulatory blood pressure monitoring where it measures blood pressureevery 15 to 30 minutes throughout the day. The cuff is a problem for the patient withAmbulatory Blood Pressure Monitor. It can make a person feel uncomfortable and must staystill when the cuff starts to inflate. It is limiting and disturbing their daily activity when thedevice is starting to measure the blood pressure. Blood pressure measurement without cuff isbeing proposed in this research, called cuff-less blood pressure measurement. It will be based onPhotoplethysmography (PPG) and Electrocardiography (ECG) signal analysis. ECG (Lead 1,Lead 2, and Lead 3) with PPG signal produced from index finger on the left hand are comparedand analyzed. Then the relation of PPG and ECG signal and the optimum location for daily usecan be obtained. The optimum location will be based on the electrode’s position that producedthe optimum ECG lead Signal to measure blood pressure. Based on the result, PPG and ECGsignal have a linear relation with Blood Pressure Measurement and Lead 1 is more stable inproducing the ECG signal. The equation from Lead 1 appeared as one of the optimum equationsfor measuring Systolic Blood Pressure (SBP) or Diastolic Blood Pressure (DBP).

scholarly journals Development of non-occlusive blood pressure monitor with height correction for home used application

2019 ◽  
Vol 14 (2) ◽  
pp. 921
Author(s):  
Agung W. Setiawan ◽  
Nur A. Heryanto ◽  
Fadel M. Putra ◽  
Febri Suyitno ◽  
M. Andre Martin ◽  
...  
Keyword(s):  
Blood Pressure ◽  
Standard Deviation ◽  
Pressure Measurement ◽  
Blood Pressure Measurement ◽  
Pulse Transit Time ◽  
Average Error ◽  
Blood Pressure Monitor ◽  
Pressure Monitor ◽  
Left Hand ◽  
Measure Blood Pressure

<span>Non-occlusive blood pressure measurement method is developed to avoid the use of discontinuous and uncomfortable cuff-based methods. In this research, Pulse Transit Time (PTT) and Photoplethysmogram Intensity Ratio (PIR) is used to measure blood pressure. Two photoplethysmogram (PPG) sensors that are placed on the wrist and one of the finger joints both on the left hand is used to get the PTT and PIR. The name of the device is ARTSEN. During measurement, there is a measurement error caused by the hydrostatic effect when the device position is not inline with the heart. To minimize this error, this research proposes an automatic continuous blood pressure monitor. The device will conduct measurement only when the height of the device is inline with the heart. Accelerometer and gyroscope are used to detect the height of the device. There are 30 subjects that are involved in this research. To evaluate the performance of the device, there are two measurement conditions, during lying in the bed and sit down position. The blood pressure measurement is conducted using ARTSEN and sphygmomanometer (as the gold standard of blood pressure measurement). The average error of systolic blood pressure is 8 mmHg with standard deviation 5 mmHg, and average error of diastolic blood pressure is 8 mmHg with standard deviation 4 mmHg.</span>

scholarly journals Using the Characteristics of Pulse Waveform to Enhance the Accuracy of Blood Pressure Measurement by a Multi-Dimension Regression Model

2019 ◽  
Vol 9 (14) ◽  
pp. 2922 ◽  
Author(s):  
Shing-Hong Liu ◽  
Li-Jen Liu ◽  
Kuo-Li Pan ◽  
Wenxi Chen ◽  
Tan-Hsu Tan
Keyword(s):  
Blood Pressure ◽  
Regression Model ◽  
Pressure Measurement ◽  
Blood Pressure Measurement ◽  
Pulse Transit Time ◽  
Blood Pressure Monitor ◽  
Pressure Monitor ◽  
Type Device ◽  
Cuffless Blood Pressure ◽  
Blood Pressure Measurement Device

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 cuffless 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.

Validation of blood pressure measurement with Medicom-Combi blood pressure monitor using oscillometric and auscultatory methods for use among adults (according to International Protocol of European Society of Hypertension for validation of blood pressure measuring devices in adults)

2020 ◽  
pp. 29-32
Author(s):  
Yu. N. Fedulaev ◽  
I. V. Makarova ◽  
N. V. Orlova ◽  
T. V. Pinchuk ◽  
O. N. Andreeva ◽  
...  
Keyword(s):  
Blood Pressure ◽  
Blood Pressure Monitoring ◽  
Blood Pressure Measurement ◽  
Measuring Instruments ◽  
Blood Pressure Monitor ◽  
Pressure Monitor ◽  
Oscillometric Method ◽  
Daily Monitoring ◽  
Auscultatory Method ◽  
And Control

Purpose. To evaluate the accuracy of measuring blood pressure (BP) by the ECG and Medicom-Combi daily blood pressure monitoring system, designed to monitor blood pressure with oscillometric and auscultatory methods, among adults in accordance with the European Hypertension Society’s International Protocol for validation of adult blood pressure measuring instruments (ESH‑2001). Materials and methods. Patients were recruited based on criteria recommended by the ESH‑2001 protocol. A total of 99 pairs of test and control measurements of blood pressure were obtained (three pairs of measurements for each of 33 subjects). The measurements were carried out sequentially on the same arm. For the arm circumference of 24–32 cm and 32–42 cm, two cuffs of the test complex were used (adult small and adult large, respectively). Results. When testing the complex, 66, 93, and 99 measurements were obtained within 5, 10, and 15 mmHg for systolic blood pressure (SBP) and 66, 89 and 95 measurements for diastolic blood pressure (DBP), respectively, using the oscillometric method, as well as 71, 93 and 97 measurements for SBP and 71, 84 and 93 measurements for DBP, respectively, when using the auscultatory method. The mean ± SD of the differences between the test and control measurements were 1.8 ± 5.4 / 1.6 ± 6.9 mmHg for SBP / DBP using the oscillometric method and 0.8 ± 5.9 / –1.2 ± 7.9 mmHg for SBP / DBP using the auscultatory method. Conclusion. The complex of daily monitoring of ECG and blood pressure Medicom-Combi, designed for daily monitoring of blood pressure, meets the requirements stated in the international protocol ESH‑2001 (class ‘Passed’) for adults and is recommended for use in clinical practice.

scholarly journals How should we measure blood pressure? Implications of the fourth blood pressure measurement in office blood pressure

2020 ◽  
Author(s):  
Annina S. Vischer ◽  
Thenral Socrates ◽  
Clemens Winterhalder ◽  
Jens Eckstein ◽  
Michael Mayr ◽  
...  
Keyword(s):  
Blood Pressure ◽  
Pressure Measurement ◽  
Blood Pressure Measurement ◽  
Office Blood Pressure ◽  
Measure Blood Pressure
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