Table 3.

Comparison of experimental (n = 3) and simulated (n = 1) temperature profiles at temporal peak of HIFU heating.

	Spatial peak temperature rise (°C)		Transverse profile FWHM (mm)		Longitudinal profile FWHM (mm)		MRTI Data (°C)
Milk composition	Experimental	Simulation	Experimental	Simulation	Experimental	Simulation	Average noisea	Average SNRb
6.3 W
10%	2.36 ± 0.21	2.66	2.73 ± 0.08	2.76	16.74 ± 0.81	19.00	0.240	9.84
30%	4.41 ± 0.42	4.58	2.88 ± 0.09	2.76	18.14 ± 0.33	19.00	0.156	24.69
50%	6.17 ± 0.26	6.49	2.77 ± 0.1	2.78	16.92 ± 0.46	19.08	0.160	32.39
70%	8.04 ± 0.16	8.15	2.78 ± 0.05	2.74	17.23 ± 0.50	18.92	0.201	40.13
7.9 W
10%	2.87 ± 0.12	3.33	2.77 ± 0.19	2.76	17.52 ± 0.12	19.00	0.177	13.01
30%	5.57 ± 0.41	5.75	2.83 ± 0.12	2.76	16.84 ± 0.79	19.00	0.186	27.31
50%	7.64 ± 0.57	8.14	2.79 ± 0.12	2.78	17.88 ± 0.94	19.08	0.172	36.15
70%	9.64 ± 0.34	10.23	2.82 ± 0.06	2.74	17.39 ± 0.43	18.92	0.151	54.32
Average % error (Ei)	+6.9 ± 5.0%		–1.9 ± 1.5%		+7.45 ± 3.0%

^aThe standard deviation in time of a 36-voxel non-heated region in the phantom (n = 3).

^bExperimental Peak Temperature Rise/Standard Deviation (n = 3).