Document Detail


Continuous ejection fraction estimation by model-based analysis of an aortic pressure waveform: comparison to echocardiography.
MedLine Citation:
PMID:  18002118     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Left ventricular ejection fraction (EF) is perhaps the most clinically significant index of global ventricular function. EF is measured in clinical practice using imaging methods such as non-invasive echocardiography. However, imaging methods generally require a skilled operator and expensive equipment. Thus, EF is not sufficiently monitored. To this end, we have recently developed a novel technique to continuously (i.e., automatically) estimate EF by model-based analysis of an aortic pressure waveform. Here, we review the technique and present its evaluation with respect to reference echocardiography measurements from three dogs during diverse interventions. We report an overall EF error of only 8.3%. With further successful testing, the technique may ultimately be utilized for continuous EF monitoring in research and clinical settings in which an aortic catheter is employed.
Authors:
Gokul Swamy; Bari Olivier; Jacob Kuiper; Ramakrishna Mukkamala
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Publication Detail:
Type:  Comparative Study; Evaluation Studies; Journal Article; Research Support, N.I.H., Extramural; 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. Conference     Volume:  2007     ISSN:  1557-170X     ISO Abbreviation:  Conf Proc IEEE Eng Med Biol Soc     Publication Date:  2007  
Date Detail:
Created Date:  2007-11-16     Completed Date:  2008-03-14     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  101243413     Medline TA:  Conf Proc IEEE Eng Med Biol Soc     Country:  United States    
Other Details:
Languages:  eng     Pagination:  963-6     Citation Subset:  IM    
Affiliation:
Department of Electrical and Computer Engineering, East Lansing, MI 48824 USA. swamygok@msu.edu
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MeSH Terms
Descriptor/Qualifier:
Animals
Aorta / physiology*
Blood Pressure / physiology*
Blood Pressure Determination / methods*
Computer Simulation
Diagnosis, Computer-Assisted / methods*
Dogs
Echocardiography / methods*
Models, Cardiovascular*
Reproducibility of Results
Sensitivity and Specificity
Stroke Volume
Grant Support
ID/Acronym/Agency:
EB-004444/EB/NIBIB NIH HHS

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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