. Author manuscript; available in PMC: 2018 Jul 1.

Published in final edited form as: IEEE Trans Ultrason Ferroelectr Freq Control. 2017 Apr 7;64(7):1034–1044. doi: 10.1109/TUFFC.2017.2692558

TABLE I.

Average estimated values (echogenicity or elasticity) in the lesion pairs and background, before and after ablation.

	Background			Lesion Site
	Baseline	Post-RFA	p	Baseline	Post-RFA	p	units
BMODE	0.46 ± 0.1	0.46 ± 0.1	NS	0.48 ± 0.1	0.61 ± 0.1	0.0124779	AU
ARFI	5.04 ± 1.2	4.31 ± 1.1	NS	5.21 ± 1.3	2.48 ± 0.7	<.001	μm
STLSWEI	3.62 ± 0.7	4.02 ± 0.7	NS	3.75 ± 0.8	8.49 ± 2.4	<.001	m/s
MTLSWEI	3.55 ± 0.7	3.93 ± 0.7	NS	3.60 ± 0.9	8.23 ± 2.6	<.001	m/s

NS = Not Significant. values represent a two-tailed, unpaired Welch’s t-test over the mean values from the seven pairs of lesions at the α = 5% significance level. B-Mode, STL-SWEI, and MTL-SWEI show statistically significant differences in the lesion values.