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. 2012 Jan;85(1009):29–36. doi: 10.1259/bjr/12929687

Table 4. Results of quantitative analysis of liver SI, background noise, liver SNR and lesion-to-liver CNR of focal hepatic lesions.

	T₂ weighted imaging			Diffusion weighted imaging
	Non-enhanced	Gadoxetic acid-enhanced	p-values	Non-enhanced	Gadoxetic acid-enhanced	p-values
Liver SI^a	81.4±27.9	72.2±22.7	<0.001	63.2±22.2	55.6±18.7	<0.001
Background noise^a	3.8±1.2	4.0±1.2	0.04	1.4±0.6	1.4±0.6	0.82
Liver SNR^a	24.4±13.5	20.2±10.1	<0.001	58.8±26.5	46.4±22.1	<0.001
CNR of all lesions (n=87)	35.9±29.2	35.1±30.0	0.65	87.8±85.0	92.6±98.3	0.02
CNR of solid lesions (n=60)	24.3±21.8	25.1±24.1	0.62	66.0±62.9	78.1±91.6	0.04
CNR of non-solid lesions (n=27)	61.4±27.5	57.2±30.2	0.32	137.0±106.8	145.0±98.6	0.37

CNR, contrast-to-noise ratio; SI, signal intensity; SNR, signal-to-noise ratio.

Data are means ± standard deviation.

^aThe total sample size was 63 patients.