Table 4:

Mean differences among the anteroposterior, transverse, and craniocaudal ablation zone dimensions expected on the basis of manufacturers' preclinical data and those measured on MRI and gross pathology^{^a}

	Expected vs MRI (mm)			Expected vs Pathology (mm)		MRI vs Pathology (mm)
	AP	TV	CC	TV	CC	TV	CC
Radiofrequency ablation	6.7 ± 0.9	11.0 ± 2.5	6.6 ± 0.7	13.4 ± 2.1	5.9 ± 0.7	−1.2 ± 0.7	−0.8 ± 0.1
Cryoablation	−0.5 ± 0.3	0.1 ± 0.7	−0.1 ± 0.7	−0.4 ± 0.6	−1.0 ± 0.5	−3.4 ± 0.2	−0.9 ± 0.3
Microwave ablation	0.9 ± 0.4	0.3 ± 0.5	1.4 ± 1.0	0.1 ± 0.5	0 ± 0.4	−0.8 ± 0.2	−0.9 ± 0.3

Note:—AP indicates anteroposterior; TV, transverse; CC, craniocaudal.
↵a A positive value indicates that the value listed first in the upper row was larger than the value listed second. For example, a positive value under the “Expected vs MRI” column indicates that the expected ablation zone dimension was larger than that measured on MRI. Orientations of the ablation zone dimensions with respect to the ablation probe are defined in Fig 2.