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In this work, cuffless BP measurement system using a single lead electrocardiogram (ECG) and a photoplethysmography (PPG) measurement has been done. The method used is based on the fact that changes in blood pressure (BP) cause changes in Pulse Transit Time (PTT), which usually gets measured as the time difference between the R peak of electrocardiogram (ECG) signal and the peak of a Photoplethysmography (PPG) signal. We have tested the developed BP measurement system with three healthy volunteers and calibrated n subject specific model that predicts blood pressure based on PTT. Systolic Blood Pressure (SBP) and Diastolic Blood Pressure (DBP) are measured with a maximum mean error and standard deviation of ± 2.88 mmHg ± 1.96 mmHg and ± 4.7 mmHg ± 2.5 mmHg respectively.

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Cuffless BP Measurement Using Single Lead Electrocardiogram and Photoplethysmography

  • 会议论文

  • 发表日期：

    2025年

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  • Matta Akhila,
  • Sripathi Tirumala Maruthi,
  • Kalluri Nikhil Kumar Reddy,
  • Ramakrishnan Maharajan

摘要

In this work, cuffless BP measurement system using a single lead electrocardiogram (ECG) and a photoplethysmography (PPG) measurement has been done. The method used is based on the fact that changes in blood pressure (BP) cause changes in Pulse Transit Time (PTT), which usually gets measured as the time difference between the R peak of electrocardiogram (ECG) signal and the peak of a Photoplethysmography (PPG) signal. We have tested the developed BP measurement system with three healthy volunteers and calibrated n subject specific model that predicts blood pressure based on PTT. Systolic Blood Pressure (SBP) and Diastolic Blood Pressure (DBP) are measured with a maximum mean error and standard deviation of ± 2.88 mmHg ± 1.96 mmHg and ± 4.7 mmHg ± 2.5 mmHg respectively.