Document Detail

Echocardiographic quantitative analysis of resting myocardial function for the assessment of viability after myocardial infarction - comparison with magnetic resonance imaging.
MedLine Citation:
PMID:  21928199     Owner:  NLM     Status:  In-Data-Review    
Background and aim: The study was set out to assess feasibility and diagnostic value of the echocardiographic quantitative analysis of the resting regional systolic function (i.e. strain and strain rate) with use of the speckle tracking (2D strain) for myocardial viability assessment in patients with acute myocardial infarction (MI) treated with primary angioplasty. The reference method was the late enhancement magnetic resonance imaging (LE MRI). Methods: The study group consisted of 40 patients (29 men, mean age 61 ± 9 years) in whom resting echocardiographic examination was performed 7-10 days after MI with peak systolic longitudinal strain (STS) and systolic longitudinal strain rate (SLSR) measurement by 2D strain technique on external workstation (EchoPac 6.1.0., GE Vingmed Ultrasound). Within 72 h LE MRI was performed in all patients, with visual assessment of late enhancement in all segments of the left ventricle. Viability of a segment was assessed based on two distinct, frequently adopted criteria: LE extent £ 50% or £ 75% of the wall thickness. Results: Due to suboptimal image quality 70 (10.9%) of the segments were excluded from 2D strain analysis. In the analysis of akinetic and dyskinetic segments, SLS and SLSR measurements with 2D strain technique had good discrimination value for viability defined as LE extent of £ 75% by MRI (area under the ROC curve 0.715 and 0.705, respectively; diagnostic accuracy of the criterion SLS £ -7.61% was 72.8%; diagnostic accuracy of the criterion SLSR £ -0.79/s was 64.9%). However, when the £ 50% viability criterion by LE MRI was used, only SLS measurement could be used for viability assessment, with sufficient diagnostic value (area under the ROC curve 0.620; diagnostic accuracy of the criterion SLS £ -9.77% was 57%). In the analysis of all segments, including hypokinetic and normokinetic segments, SLS and SLSR measurements did not provide additional information, beyond that of the visual viability analysis. Conclusions: Resting quantitative echocardiographic analysis of myocardial function seems to be a promising tool for myocardial viability assessment. There is a trend towards greater diagnostic value of SLS than SLSR measurements. Kardiol Pol 2011; 69, 9: 915-922.
Piotr Lipiec; Ewa Szymczyk; Błażej Michalski; Ludomir Stefańczyk; Bartłomiej Woźniakowski; Arkadiusz Rotkiewicz; Konrad Szymczyk; Jarosław D Kasprzak
Related Documents :
19700469 - Abnormal coronary reserve and left ventricular wall motion during cold pressor test in ...
3680709 - Evaluation of regional ventricular wall motion by ecg-gated ct.
11083189 - Combined corrections for attenuation, depth-dependent blur, and motion in cardiac spect...
3259959 - Relation of global and regional left ventricular function to tomographic thallium-201 m...
2650919 - Relation between longitudinal, circumferential, and oblique shortening and torsional de...
9801969 - Identifying the cause of left ventricular systolic dysfunction after coronary artery by...
6832949 - Serial two-dimensional echocardiography in infective endocarditis of the pulmonic valve.
18371469 - Comparative safety and efficacy of a sirolimus-eluting versus paclitaxel-eluting stent:...
9390589 - Acute hypovolemia may cause segmental wall motion abnormalities in the absence of myoca...
Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Kardiologia polska     Volume:  69     ISSN:  0022-9032     ISO Abbreviation:  Kardiol Pol     Publication Date:  2011  
Date Detail:
Created Date:  2011-09-19     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0376352     Medline TA:  Kardiol Pol     Country:  Poland    
Other Details:
Languages:  eng     Pagination:  915-22     Citation Subset:  IM    
Export Citation:
APA/MLA Format     Download EndNote     Download BibTex
MeSH Terms

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

Previous Document:  Increased prevalence of cardiovascular risk factors in patients with acute coronary syndrome and ind...
Next Document:  Plasma adiponectin levels in acute myocardial infarction and during the postinfarction recovery peri...