Two-dimensional acoustic pattern derived strain parameters closely correlate with one-dimensional tissue Doppler derived strain measurements

Karen M. Modesto, Sanderson Cauduro, Angela Dispenzieri, Bijoy Khandheria, Marek Belohlavek, Peter Lysyansky, Zvi Friedman, Morie Gertz, Theodore P. Abraham

Research output: Contribution to journalArticle

44 Scopus citations

Abstract

Background: Two-dimensional strain echocardiography (2D-SE) calculates tissue velocities via frame-to-frame tracking of unique acoustic markers within the image and provides strain parameters in two dimensions. Novel 2D-SE software allows semi-automated strain measurements and increased averaging capabilities optimizing signal-noise ratio. Aim: We tested whether 2D-SE and the currently used and well-validated tissue Doppler derived strain echocardiography (TD-SE) yield similar information in the clinical setting. Methods and results: We performed 2D-SE and TD-SE on 17 patients with amyloid cardiomyopathy and 10 age-matched healthy volunteers. Single walls from standard apical views (2- and 4-chamber) were acquired at high frame rates (∼200 fps). Offline analysis was performed by observers blinded to clinical data using the EchoPAC program with custom 2D-SE software. Longitudinal strain rate and strain from the basal, mid and apical segments of the septal and lateral walls were determined by each method (TD-SE and 2D-SE). Ejection fraction was >0.55 in healthy volunteers and ranged from 0.30 to 0.80 in cardiomyopathy group. A total of 54 walls (162 segments) were examined. Acceptable quality strain data was available in 92% and 85% segments by 2D-SE and TD-SE, respectively. Two-dimensional strain echocardiography values correlated closely with TD-SE values (r = 0.94 and 0.96 for strain rate and strain, respectively). Conclusions: Deformation analysis by 2D-SE is feasible in a clinical setting and 2D-SE values correlate closely with TD-SE measurements over a wide range of global systolic function. Two-dimensional strain echocardiography may help to facilitate the routine clinical implementation of deformation analysis.

Original languageEnglish (US)
Pages (from-to)315-321
Number of pages7
JournalEuropean Journal of Echocardiography
Volume7
Issue number4
DOIs
StatePublished - Aug 2006

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Keywords

  • Strain
  • Tissue Doppler
  • Two-dimensional strain echocardiography

ASJC Scopus subject areas

  • Cardiology and Cardiovascular Medicine

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