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. Author manuscript; available in PMC: 2022 Mar 1.
Published in final edited form as: IEEE Trans Ultrason Ferroelectr Freq Control. 2021 Feb 25;68(3):389–405. doi: 10.1109/TUFFC.2020.2968147

Fig. 9:

Fig. 9:

Two-dimensional shear wave phase velocity images for the experimental TM viscoelastic phantom data. The f0 used for the calculations was equal to (a) 170, (b) 350, and (c) 600 for Phantom A, and (d) 120 Hz, (e) 260, and (f) 400 Hz for Phantom B, respectively. Results for LPVI without bandpass filters similar to the work described in [40] are shown in the top row (Filters Off). Results for LPVI with active filters introduced in this manuscript are shown in the bottom row (Filters On). The window size, Wz,x, was equal to 4.0 × 4.0 mm.