Document Detail


Exercise tissue Doppler echocardiography with strain rate imaging in healthy young individuals: feasibility, normal values and reproducibility.
MedLine Citation:
PMID:  16868857     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
PURPOSE OF THE STUDY: The study was done to determine the clinical feasibility and reproducibility of tissue Doppler echocardiography (TDE) with strain rate imaging (SRI) at rest and under physical exercise in healthy young individuals and to report normal values for parameters of regional myocardial function under exercise. METHODS: Forty-five young volunteers (age 9-29 years) underwent echocardiography with TDE/SRI at rest and during a bicycle exercise test (2 W/kg body weight). RESULTS: Velocities could be obtained in 93% of segments, whereas strain rate was measurable at least in 80% of segments. Inter- and intraobserver variability for measurement of velocities under exercise was 14% and 9%, respectively for strain rate 28% and 20%. Except for peak strain, values for all other parameters were higher during exercise with the clearest response in the left lateral and the right ventricular wall. CONCLUSIONS: (1) Tissue Doppler with strain rate imaging is a practical and robust method for assessment of regional function of both ventricles under exercise. (2) Systolic motion, local myocardial relaxation and contractility increased significantly under physical exercise. These normal values obtained from healthy young subjects can serve as a reference database for further clinical studies.
Authors:
Björn Goebel; Raoul Arnold; Eric Koletzki; Herbert E Ulmer; Joachim Eichhorn; Martin Borggrefe; Hans R Figulla; Tudor C Poerner
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Publication Detail:
Type:  Journal Article     Date:  2006-07-26
Journal Detail:
Title:  The international journal of cardiovascular imaging     Volume:  23     ISSN:  1569-5794     ISO Abbreviation:  Int J Cardiovasc Imaging     Publication Date:  2007 Apr 
Date Detail:
Created Date:  2007-03-14     Completed Date:  2007-05-17     Revised Date:  2008-11-21    
Medline Journal Info:
Nlm Unique ID:  100969716     Medline TA:  Int J Cardiovasc Imaging     Country:  United States    
Other Details:
Languages:  eng     Pagination:  149-55     Citation Subset:  IM    
Affiliation:
Klinik für Innere Medizin I, Universitätsklinikum Jena, Friedrich-Schiller-Universität Jena, Erlanger-Allee 101 D-07740, Jena, Germany.
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MeSH Terms
Descriptor/Qualifier:
Adolescent
Adult
Child
Echocardiography, Doppler, Color*
Exercise / physiology*
Feasibility Studies
Female
Heart Ventricles / ultrasonography
Humans
Image Interpretation, Computer-Assisted
Male
Myocardial Contraction*
Reference Values
Reproducibility of Results
Systole
Time Factors
Ventricular Function*
Comments/Corrections
Erratum In:
Int J Cardiovasc Imaging. 2007 Apr;23(2):157

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


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