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. Author manuscript; available in PMC: 2023 Jun 1.
Published in final edited form as: IEEE Trans Med Imaging. 2022 Jun 1;41(6):1468–1481. doi: 10.1109/TMI.2022.3141084

Fig. 4.

Fig. 4.

Shear moduli ratios predicted by the derived empirical model versus true shear moduli ratios for test set materials with (a) material densities and (b) ARF focal configurations that were lower than (magenta), higher than (green), or the same as (black) those of the train set materials used to derive the model. Asterisks (*) indicate statistical difference between predicted shear moduli ratios across focal configurations (Kruskal–Wallis one-way analysis of variance, p<0.05). Data are plotted as median ± 0.5×interquartile range over 20 independent speckle realizations. LFN = Lateral F-number, EFN = Elevational F-number, LoE = Line of equivalency, RMSE = root mean square error, SNR = signal-to-noise ratio.

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