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Figure 1 Strain and Strain Rate Profiles With Automated Velocity and Segment Length Methods
Strain rate and strain estimated with the 2 different methods (red curve = segment length method, blue curve = velocity gradient method). Strain rate traces are shown in the left image, and strain traces are shown in the right image. The traces are from a patient at peak dose showing ischemia in apical septum with low strain rate/strain values. The traces in the lowest images show postsystolic strain. Note the differences in the curves, the red trace has in general reduced value and a different shape compared with the blue trace. The red trace is smoother, probably because of lower temporal resolution. AVC = aortic valve closure.
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