Document Detail


Function and mechanics of the left ventricle: from tissue Doppler imaging to three dimensional speckle tracking.
MedLine Citation:
PMID:  21775245     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
One of the most common indications in echocardiography is the evaluation of left ventricular function. The traditional measurement of ejection fraction is based upon tracing the left ventricular borders and calculating left ventricular volumes using geometric assumptions. Now, with the introduction of three-dimensional echocardiography, the evaluation of left ventricular function is easier to carry out and with superior accuracy and reproducibility. However, regional myocardial function is more difficult to evaluate because it relies on visual assessment of endocardial motion and wall thickening. Currently, new techniques like tissue Doppler and speckle tracking imaging allow regional and global quantification of myocardial function through new parameters, like deformation/strain, rotation and twist. In this regard, speckletracking echocardiography (STE) has been introduced as a technique for angle-independent quantification of multidirectional myocardial strain and rotation. With the arrival of three-dimensional systems, the entire left ventricle can be evaluated with this technique, lacking the inherent weakness of two- dimensional and tissue Doppler methods. Three dimensional speckle tracking (3DST) has potential to be an ideal tool to assess not only global myocardial function but regional function through deformation, rotation, twist and untwisting parameters.
Authors:
José Antonio Arias-Godínez; José Fernando Guadalajara-Boo; Ayan R Patel; Natesa G Pandian
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Publication Detail:
Type:  JOURNAL ARTICLE    
Journal Detail:
Title:  Archivos de cardiologia de Mexico     Volume:  81     ISSN:  1405-9940     ISO Abbreviation:  -     Publication Date:    2011 Apr-Jun
Date Detail:
Created Date:  2011-7-21     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  101126728     Medline TA:  Arch Cardiol Mex     Country:  -    
Other Details:
Languages:  ENG     Pagination:  114-125     Citation Subset:  -    
Affiliation:
Departamento de Ecocardiografía. Instituto Nacional de Cardiología Ignacio Chávez. México, D.F.
Vernacular Title:
Función y mecánica del ventrículo izquierdo: de la imagen con Doppler tisular al reconocimiento de patrones acústicos con imágenes tridimensionales.
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