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    
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.
Gokul Swamy; Bari Olivier; Jacob Kuiper; Ramakrishna Mukkamala
Related Documents :
6233088 - Comparative echocardiographic studies in leading canoe-kayak and handball sportsmen.
2818458 - Use of a conductance catheter to detect increased left ventricular inotropic state by e...
3409508 - Response of the left ventricular end-systolic pressure-volume relation in conscious dog...
3381918 - Optimal contractility and minimal oxygen consumption for constant external work of heart.
9542478 - The pharmacodynamics and pharmacokinetics of the 5ht1b/1d-agonist zolmitriptan in healt...
21299178 - Prevalence of prehypertensive state and other cardiovascular risk factors in the first ...
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. Annual 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:  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:  963-6     Citation Subset:  IM    
Export Citation:
APA/MLA Format     Download EndNote     Download BibTex
MeSH Terms
Aorta / physiology*
Blood Pressure / physiology*
Blood Pressure Determination / methods*
Computer Simulation
Diagnosis, Computer-Assisted / methods*
Echocardiography / methods*
Models, Cardiovascular*
Reproducibility of Results
Sensitivity and Specificity
Stroke Volume
Grant Support

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

Previous Document:  Study on the microcirculatory blood velocity of acupoint monitored by laser Doppler signal.
Next Document:  Effect of gender on blood flow velocities and blood pressure: role of body weight and height.