Assessment of a Calibration-Free Method of Cuffless Blood Pressure Measurement: A Pilot Study
This study proposes a low-cost, high-sensitivity sensor of beat-to-beat local pulse wave velocity (PWV), to be used in a cuffless blood pressure monitor (BPM). Objective: We design an adaptive algorithm to detect the feature of the pulse wave, making it possible for two sensors to measure the local...
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| Format: | Article |
| Language: | English |
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IEEE
2023-01-01
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| Series: | IEEE Journal of Translational Engineering in Health and Medicine |
| Subjects: | |
| Online Access: | https://ieeexplore.ieee.org/document/9903418/ |
| _version_ | 1797804067816210432 |
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| author | Cheng-Yan Guo Chia-Chi Chang Kuan-Jen Wang Tung-Li Hsieh |
| author_facet | Cheng-Yan Guo Chia-Chi Chang Kuan-Jen Wang Tung-Li Hsieh |
| author_sort | Cheng-Yan Guo |
| collection | DOAJ |
| description | This study proposes a low-cost, high-sensitivity sensor of beat-to-beat local pulse wave velocity (PWV), to be used in a cuffless blood pressure monitor (BPM). Objective: We design an adaptive algorithm to detect the feature of the pulse wave, making it possible for two sensors to measure the local PWV in the radial artery at a short distance. Unlike the cuffless BPM that needs to use a regression model for calibration. Method: We encapsulate the piezoelectric sensor material in a cavity and design an analog front-end circuit. This study used color ultrasound imaging equipment to measure radial arterial parameters, including the diameter and wall thickness, to aid the estimation of blood pressure (BP) using the Moens-Korteweg (MK) equation of hemodynamics. Results: We compared the blood pressure estimated by the MK equation with the reference BP measured using an aneroid sphygmomanometer in a test group of 32 people, resulting in a mean difference of systolic BP of −0.63 mmHg, and a standard deviation of ±5.14 mmHg, a mean difference of mean arterial pressure (MAP) of 0.97 mmHg, with a standard deviation of ±3.54 mmHg, and a mean difference of diastolic BP of −1.14 mmHg, with a standard deviation of ±4.08 mmHg. This study has verified its compliance with ISO 81060-2. Conclusions: A new type of wearable continuous calibration-free BPM can replace the situation that requires the use of traditional ambulatory BPM and reduce patient discomfort. Clinical impact: In this study can provide long-term continuous blood pressure monitoring in the hospital. |
| first_indexed | 2024-03-13T05:31:36Z |
| format | Article |
| id | doaj.art-846fb6f8fb2d47f7945f2f40e886079a |
| institution | Directory Open Access Journal |
| issn | 2168-2372 |
| language | English |
| last_indexed | 2024-03-13T05:31:36Z |
| publishDate | 2023-01-01 |
| publisher | IEEE |
| record_format | Article |
| series | IEEE Journal of Translational Engineering in Health and Medicine |
| spelling | doaj.art-846fb6f8fb2d47f7945f2f40e886079a2023-06-14T23:00:12ZengIEEEIEEE Journal of Translational Engineering in Health and Medicine2168-23722023-01-011131832910.1109/JTEHM.2022.32097549903418Assessment of a Calibration-Free Method of Cuffless Blood Pressure Measurement: A Pilot StudyCheng-Yan Guo0https://orcid.org/0000-0002-3397-6742Chia-Chi Chang1Kuan-Jen Wang2https://orcid.org/0000-0002-5264-5375Tung-Li Hsieh3https://orcid.org/0000-0002-1038-2124Accurate Meditech Inc., New Taipei City, TaiwanAdvanced Micro Devices Inc., Hsinchu, TaiwanAccurate Meditech Inc., New Taipei City, TaiwanDepartment of Electronic Engineering, National Kaohsiung University of Science and Technology, Sanmin, Kaohsiung City, TaiwanThis study proposes a low-cost, high-sensitivity sensor of beat-to-beat local pulse wave velocity (PWV), to be used in a cuffless blood pressure monitor (BPM). Objective: We design an adaptive algorithm to detect the feature of the pulse wave, making it possible for two sensors to measure the local PWV in the radial artery at a short distance. Unlike the cuffless BPM that needs to use a regression model for calibration. Method: We encapsulate the piezoelectric sensor material in a cavity and design an analog front-end circuit. This study used color ultrasound imaging equipment to measure radial arterial parameters, including the diameter and wall thickness, to aid the estimation of blood pressure (BP) using the Moens-Korteweg (MK) equation of hemodynamics. Results: We compared the blood pressure estimated by the MK equation with the reference BP measured using an aneroid sphygmomanometer in a test group of 32 people, resulting in a mean difference of systolic BP of −0.63 mmHg, and a standard deviation of ±5.14 mmHg, a mean difference of mean arterial pressure (MAP) of 0.97 mmHg, with a standard deviation of ±3.54 mmHg, and a mean difference of diastolic BP of −1.14 mmHg, with a standard deviation of ±4.08 mmHg. This study has verified its compliance with ISO 81060-2. Conclusions: A new type of wearable continuous calibration-free BPM can replace the situation that requires the use of traditional ambulatory BPM and reduce patient discomfort. Clinical impact: In this study can provide long-term continuous blood pressure monitoring in the hospital.https://ieeexplore.ieee.org/document/9903418/Moens-Korteweg equationblood pressuremean artery pressurepulse wave velocityblood pressure monitor |
| spellingShingle | Cheng-Yan Guo Chia-Chi Chang Kuan-Jen Wang Tung-Li Hsieh Assessment of a Calibration-Free Method of Cuffless Blood Pressure Measurement: A Pilot Study IEEE Journal of Translational Engineering in Health and Medicine Moens-Korteweg equation blood pressure mean artery pressure pulse wave velocity blood pressure monitor |
| title | Assessment of a Calibration-Free Method of Cuffless Blood Pressure Measurement: A Pilot Study |
| title_full | Assessment of a Calibration-Free Method of Cuffless Blood Pressure Measurement: A Pilot Study |
| title_fullStr | Assessment of a Calibration-Free Method of Cuffless Blood Pressure Measurement: A Pilot Study |
| title_full_unstemmed | Assessment of a Calibration-Free Method of Cuffless Blood Pressure Measurement: A Pilot Study |
| title_short | Assessment of a Calibration-Free Method of Cuffless Blood Pressure Measurement: A Pilot Study |
| title_sort | assessment of a calibration free method of cuffless blood pressure measurement a pilot study |
| topic | Moens-Korteweg equation blood pressure mean artery pressure pulse wave velocity blood pressure monitor |
| url | https://ieeexplore.ieee.org/document/9903418/ |
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