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. Author manuscript; available in PMC: 2018 Dec 1.
Published in final edited form as: IEEE Trans Ultrason Ferroelectr Freq Control. 2017 Sep 6;64(12):1784–1794. doi: 10.1109/TUFFC.2017.2749566

Fig. 19.

Fig. 19

(A) Heat-map histogram of shear wave speed at each lateral position for a single track beam (θ = 1.13°, ϕ = 1.13°). The boundary at x = −5 mm is apparent with high resolution, having a 20–80% rise spacing of just 0.60 mm. (B) Heat-map histogram of shear wave speed, averaged over all track beams. The resolution of the boundary is degraded, showing a width of 1.57 mm.