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. Author manuscript; available in PMC: 2012 Oct 23.
Published in final edited form as: Ultrason Imaging. 2011 Apr;33(2):89–108. doi: 10.1177/016173461103300201

FIG. 13.

FIG. 13

(a) to (h) show the mean absolute difference between the actual ARFI displacement and the estimate of the ARFI displacement after filtering at all depths in the left ventricle free wall 0.1 and 0.7 ms after the simulated ARFI push with a matched ECG (d, h). (i) to (p) show the absolute difference between the actual ARFI displacement and the estimate of the ARFI displacement after filtering at each depth in the left ventricle free wall 0.1 and 0.7 ms after the simulated ARFI push. The gray lines labeled ‘1’ and ‘2’ on the ECG correspond to atrial systole and the onset of ventricular systole. The interpolation, extrapolation, and close-time interpolation filters used are the same as those shown in figure 8.