Document Detail


A hydrostatic calibration method for the design of wearable PAT-based blood pressure monitoring devices.
MedLine Citation:
PMID:  19162907     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
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.
Authors:
Yinbo Liu; Carmen C Y Poon; Yuan-Ting Zhang
Related Documents :
2187657 - Current status of 24-hour ambulatory blood pressure monitoring in clinical practice.
2563647 - Elevated blood pressure in treated hypertensives with low-level lead accumulation.
9140677 - Ambulatory blood pressure monitoring in patients with essential hypertension treated wi...
17330057 - Association of enos glu298asp gene polymorphism with circadian blood pressure rhythm.
6534767 - Evaluation problems of a long-term study on evolving pulmonary arterial hypertension in...
9788987 - Use of intrinsic modes in biology: examples of indicial response of pulmonary blood pre...
Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Conference proceedings : ... Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE Engineering in Medicine and Biology Society. Annual Conference     Volume:  2008     ISSN:  1557-170X     ISO Abbreviation:  Conf Proc IEEE Eng Med Biol Soc     Publication Date:  2008  
Date Detail:
Created Date:  2009-02-16     Completed Date:  2009-05-05     Revised Date:  2014-08-21    
Medline Journal Info:
Nlm Unique ID:  101243413     Medline TA:  Conf Proc IEEE Eng Med Biol Soc     Country:  United States    
Other Details:
Languages:  eng     Pagination:  1308-10     Citation Subset:  IM    
Export Citation:
APA/MLA Format     Download EndNote     Download BibTex
MeSH Terms
Descriptor/Qualifier:
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


Previous Document:  A novel design and evaluation of wearable digital sensor for monitoring posture.
Next Document:  Detection of nocturnal hypoglycemic episodes (natural occurrence) in children with Type 1 diabetes u...