Table 1.

Phantom Elasticity Calibration

	Gnom (kPa)	SWSqEI (m/s)	GqEI (kPa)
Background	2.7	1.51 ± 0.03	2.30 ± 0.09
Type I	0.7	0.74 ± 0.03	0.55 ± 0.05
Type II	5.3	1.88 ± 0.04	3.55 ± 0.16
Type III	8.0	2.43 ± 0.02	5.89 ± 0.12
Type IV	10.7	2.54 ± 0.02	6.48 ± 0.08

^*Values are reported as mean ± one standard deviation over six measurements. SWS_qEI is reported by the software, and G_qEI is calculated as $\mathrm{S}\mathrm{W}{\mathrm{S}}_{\mathrm{q}\mathrm{E}\mathrm{I}}^2$ from equation 1, assuming ρ = 1 g/cm³.