Table IV.

Means, standard deviations, and root-mean-square errors (RMSE) for parameter estimates from simulations with SNR = 40 dB based on parameter values reported by Nelson et al. (2011), which correspond to data from Nagatani et al. from bovine femur (2008).

		Mean ± Std. Deviation (RMSE)	Mean ± Std. Deviation (RMSE)
Frequency (MHz)	1.0
Frequency Analysis Range (MHz) (flow − fhigh)	0.25 – 1.6
Separation (theory)		0.38	0.95
Separation (numerical)		0.45	0.89
Thickness (mm)		6	15
Afast	1.00	1.00 ± 0.07 (0.07)	1.01 ± 0.19 (0.19)
Aslow	0.13	0.13 ± 0.01 (0.01)	0.13 ± 0.01 (0.01)
βfast (dB/cmMHz)	49.2	49.0 ± 1.6 (1.6)	48.7 ± 3.0 (3.0)
βslow (dB/cmMHz)	7.1	7.3 ± 0.6 (0.6)	7.2 ± 0.3 (0.4)
vfast (ω0) (m/s)	1933	1933 ± 5 (5)	1930 ± 16 (16)
vslow (ω0) (m/s)	1475	1475 ± 1 (1)	1475 ± 1 (1)