| A hydrostatic calibration method for the design of wearable PAT-based blood pressure monitoring devices. | |
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MedLine Citation:
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PMID: 19162907 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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Pulse arrival time (PAT) has been proposed for measuring blood pressure (BP) noninvasively and continuously. A challenge of the PAT-based BP measurement technique is to calibrate it individually. The objective of this study is to examine a previously proposed model-based calibration method utilizing hydrostatic pressure for BP estimation. A preliminary experiment has been conducted on eight subjects aged from 23 to 36. Each subject was asked to raise their right arms to five different heights (H). At each height, PAT and brachial BP were measured from the elevated arm and the resting arm respectively. The data recorded at each height were used to calibrate a subject-dependent coefficient b which was then used to estimate his/her brachial SBP before and after exercise. It was found that the estimation results were influenced by H and k, which is a constant time interval subtracted from PAT. In this study, the estimation errors were found to be more sensitive to H than to k for -30< or =H< or =30 cm and 40< or =k< or =70 ms. |
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Authors:
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Yinbo Liu; Carmen C Y Poon; Yuan-Ting Zhang |
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Publication Detail:
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Type: Journal Article; Research Support, Non-U.S. Gov't |
Journal Detail:
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Title: Conference proceedings : ... Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE Engineering in Medicine and Biology Society. Conference Volume: 2008 ISSN: 1557-170X ISO Abbreviation: Conf Proc IEEE Eng Med Biol Soc Publication Date: 2008 |
Date Detail:
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Created Date: 2009-02-16 Completed Date: 2009-05-05 Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 101243413 Medline TA: Conf Proc IEEE Eng Med Biol Soc Country: United States |
Other Details:
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Languages: eng Pagination: 1308-10 Citation Subset: IM |
Affiliation:
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Joint Research Centre for Biomedical Engineering Department of Electronic Engineering, The Chinese University of Hong Kong, Hong Kong. |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Adult Blood Pressure / physiology* Blood Pressure Monitoring, Ambulatory / instrumentation*, methods Calibration Humans Hydrostatic Pressure Pulse / instrumentation, methods Young Adult |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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