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. 2013 Jan;29(1):64–70.

Figure 2.

Figure 2

Myocardial longitudinal (upper panel in each demonstration) and short-axis (radial or circumferential displayed as lower panel in each demonstration) deformations are shown. Common encountered commercialized companies/software such as iE33 (QLab, Philips Medical Systems) (data not shown), GE Vingmed (A: GE Vingmed Ultrasound AS, Horten, Norway), TomTec (B: TomTec, Cardiac 2D Performance Analysis, Tomtec Imaging Systems) or Velocity Vector Imaging (C: Siemens Medical Solutions, Mountain View, CA, USA) and strain or related volume-velocity curve analysis in the same subjects are shown. The amplitude and direction from speckle-tracking analysis (B & C) represents the amplitude and direction of ongoing regional myocardial motions.