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. Author manuscript; available in PMC: 2015 Apr 21.
Published in final edited form as: IEEE Trans Ultrason Ferroelectr Freq Control. 2015 Jan;62(1):165–175. doi: 10.1109/TUFFC.2014.006653

Fig. 5.

Fig. 5

Scatter plot showing the comparison of the phase velocities found using frequencies of 0 Hz (left) and 200 Hz (right) with the group SWS measurements. Results are shown for 374 individual acquisitions in 98 subjects with low fibrosis (≤F2, black) and high fibrosis stage (≥F3, red). The coefficient of determination R2 is shown for each case.