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Accuracy of speckle tracking in the context of stress echocardiography in short axis view: An in vitro validation study

Author

Listed:
  • Amir Hodzic
  • Boris Chayer
  • Diya Wang
  • Jonathan Porée
  • Guy Cloutier
  • Paul Milliez
  • Hervé Normand
  • Damien Garcia
  • Eric Saloux
  • Francois Tournoux

Abstract

Aim: This study aimed to test the accuracy of a speckle tracking algorithm to assess myocardial deformation in a large range of heart rates and strain magnitudes compared to sonomicrometry. Methods and results: Using a tissue-mimicking phantom with cyclic radial deformation, radial strain derived from speckle tracking (RS-SpT) of the upper segment was assessed in short axis view by conventional echocardiography (Vivid q, GE) and post-processed with clinical software (EchoPAC, GE). RS-SpT was compared with radial strain measured simultaneously by sonomicrometers (RS-SN). Radial strain was assessed with increasing deformation rates (60 to 160 beats/min) and increasing pulsed volumes (50 to 100 ml/beat) to simulate physiological changes occurring during stress echocardiography. There was a significant correlation (R2 = 0.978, P

Suggested Citation

  • Amir Hodzic & Boris Chayer & Diya Wang & Jonathan Porée & Guy Cloutier & Paul Milliez & Hervé Normand & Damien Garcia & Eric Saloux & Francois Tournoux, 2018. "Accuracy of speckle tracking in the context of stress echocardiography in short axis view: An in vitro validation study," PLOS ONE, Public Library of Science, vol. 13(3), pages 1-11, March.
    • Handle: RePEc:plo:pone00:0193805
    DOI: 10.1371/journal.pone.0193805
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