Observation of Continuous Blood Pressure with Posture Change Using a Wearable PTT Monitoring System

2017 ◽  
pp. 41-44
Author(s):  
Yun-Hong Noh ◽  
Ji-Yun Seo ◽  
Do-Un Jeong
Keyword(s):  
Blood Pressure ◽  
Monitoring System ◽  
Posture Change ◽  
Continuous Blood Pressure

Development and Evaluation of a Continuous Blood Pressure Monitoring System

2020 ◽  
pp. 1-19
Author(s):  
Toshiya Arakawa ◽  
Noriaki Sakakibara ◽  
Shinji Kondo
Keyword(s):  
Blood Pressure ◽  
Monitoring System ◽  
Blood Pressure Monitoring ◽  
Pressure Monitoring ◽  
Continuous Blood Pressure

Development of a noninvasive continuous blood pressure measurement and monitoring system

2012 ◽  
Author(s):  
Md. Manirul Islam ◽  
Fida Hasan Md. Rafi ◽  
Abu Farzan Mitul ◽  
Mohiuddin Ahmad ◽  
M. A. Rashid ◽  
...  
Keyword(s):  
Blood Pressure ◽  
Monitoring System ◽  
Pressure Measurement ◽  
Blood Pressure Measurement ◽  
Continuous Blood Pressure

An evaluation of a new continuous blood pressure monitoring system in critically ill patients

2000 ◽  
Vol 12 (7) ◽  
pp. 509-518 ◽  
Author(s):  
Stephen O Heard ◽  
Alan Lisbon ◽  
Ildiko Toth ◽  
Ramiah Ramasubramanian
Keyword(s):  
Blood Pressure ◽  
Critically Ill ◽  
Monitoring System ◽  
Critically Ill Patients ◽  
Blood Pressure Monitoring ◽  
Pressure Monitoring ◽  
Continuous Blood Pressure

scholarly journals Combined deep CNN–LSTM network-based multitasking learning architecture for noninvasive continuous blood pressure estimation using difference in ECG-PPG features

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Da Un Jeong ◽  
Ki Moo Lim
Keyword(s):  
Blood Pressure ◽  
Blood Pressure Measurement ◽  
Patient Specific ◽  
Peak Time ◽  
Simultaneous Prediction ◽  
Deep Cnn ◽  
Pressure Estimation ◽  
The Difference ◽  
Blood Pressure Estimation ◽  
Continuous Blood Pressure

AbstractThe pulse arrival time (PAT), the difference between the R-peak time of electrocardiogram (ECG) signal and the systolic peak of photoplethysmography (PPG) signal, is an indicator that enables noninvasive and continuous blood pressure estimation. However, it is difficult to accurately measure PAT from ECG and PPG signals because they have inconsistent shapes owing to patient-specific physical characteristics, pathological conditions, and movements. Accordingly, complex preprocessing is required to estimate blood pressure based on PAT. In this paper, as an alternative solution, we propose a noninvasive continuous algorithm using the difference between ECG and PPG as a new feature that can include PAT information. The proposed algorithm is a deep CNN–LSTM-based multitasking machine learning model that outputs simultaneous prediction results of systolic (SBP) and diastolic blood pressures (DBP). We used a total of 48 patients on the PhysioNet website by splitting them into 38 patients for training and 10 patients for testing. The prediction accuracies of SBP and DBP were 0.0 ± 1.6 mmHg and 0.2 ± 1.3 mmHg, respectively. Even though the proposed model was assessed with only 10 patients, this result was satisfied with three guidelines, which are the BHS, AAMI, and IEEE standards for blood pressure measurement devices.

scholarly journals Continuous Blood Pressure Estimation Using Exclusively Photopletysmography by LSTM-Based Signal-to-Signal Translation

Sensors ◽  
2021 ◽  
Vol 21 (9) ◽  
pp. 2952
Author(s):  
Latifa Nabila Harfiya ◽  
Ching-Chun Chang ◽  
Yung-Hui Li
Keyword(s):  
Blood Pressure ◽  
Absolute Error ◽  
Estimation Methods ◽  
British Hypertension Society ◽  
Arterial Blood ◽  
Proposed Model ◽  
Pressure Estimation ◽  
Effective Signal ◽  
Blood Pressure Estimation ◽  
Continuous Blood Pressure

Monitoring continuous BP signal is an important issue, because blood pressure (BP) varies over days, minutes, or even seconds for short-term cases. Most of photoplethysmography (PPG)-based BP estimation methods are susceptible to noise and only provides systolic blood pressure (SBP) and diastolic blood pressure (DBP) prediction. Here, instead of estimating a discrete value, we focus on different perspectives to estimate the whole waveform of BP. We propose a novel deep learning model to learn how to perform signal-to-signal translation from PPG to arterial blood pressure (ABP). Furthermore, using a raw PPG signal only as the input, the output of the proposed model is a continuous ABP signal. Based on the translated ABP signal, we extract the SBP and DBP values accordingly to ease the comparative evaluation. Our prediction results achieve average absolute error under 5 mmHg, with 70% confidence for SBP and 95% confidence for DBP without complex feature engineering. These results fulfill the standard from Association for the Advancement of Medical Instrumentation (AAMI) and the British Hypertension Society (BHS) with grade A. From the results, we believe that our model is applicable and potentially boosts the accuracy of an effective signal-to-signal continuous blood pressure estimation.

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