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. Author manuscript; available in PMC: 2013 Aug 19.
Published in final edited form as: IEEE Trans Ultrason Ferroelectr Freq Control. 2012 Jun;59(6):1167–1181. doi: 10.1109/tuffc.2012.2307

Fig. 4.

Fig. 4

The Young’s modulus and the normalized backscatter plotted against the numbers of therapy pulses for lesions produced in the phantoms. Each data point represents the mean ± standard deviation from 9 independent treatments. The dashed line represents the exponential fit with the number of pulses centered at zero mean and scaled to unit standard deviation (i.e., Young’s modulus: y = 0.01 · e−8.1·((x − 700)/729) + 2.18, R2 = 0.99; normalized backscatter intensity: y = 0.03 · e−3.5·((x − 700)/729) + 0.15, R2 = 0.99).