Table 2.

Peak negative pressures used in porcine liver experiments.

		345 kHZ			5 MHz
Experimental Set	Case	Focal p- in Free- Field (MPa)*	Focal p- with Attenuation Correction (MPa)†	Proportion§ (%)	Focal p- in Free- Field (MPa)	Focal p-with Attenuation Correction (MPa) ‡	Proportion§ (%)
#3	#1	25.9	23.6	77	8.0	7.1	23
	#2	26.5	24.4	78	8.0	7.0	22

^*The p- values were linearly interpolated using the linear summed p- values shown in Fig. 4(d).

^†The p- values for 345 kHz pulses were linearly corrected by the attenuation contributed by the plastic gel holder (using FOPH measurement), and agarose hydrogel and porcine liver (using previously reported attenuation coefficients (Goss et al. 1978; Maxwell et al. 2010)).

^‡The p- values for 5 MHz pulses were linearly corrected by the attenuation contributed by agarose hydrogel and porcine liver (using previously reported attenuation coefficients (Goss et al. 1978; Maxwell et al. 2010) ).

^§The “proportion” is the ratio of the p- from individual frequency component to the total combined p-.