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. Author manuscript; available in PMC: 2018 Sep 1.
Published in final edited form as: IEEE Trans Ultrason Ferroelectr Freq Control. 2017 Sep;64(9):1298–1304. doi: 10.1109/TUFFC.2017.2707981

Fig. 3.

Fig. 3

The wave phase delay of the remaining locations, relative to the first location, is used to measure the surface wave speed. Representative examples of wave speed at 150 Hz for a patient (a) and a healthy subject (b).