Quantifying Liver Cirrhosis by Extracting Significant Features from MRI T2 Image

Table 2

Descriptive statistics of age, body weight, and extracted features (SD, mean, and entropy of pixel intensity in the ROI). P values from t-test reveal statistically significant differences between extracted features of images of normal and abnormal groups.

Variable	Category	Mean	95% C.I.		SD	Min.	Max.	P
			Lower	Upper
Age	Normal	29.419	26.339	32.500	8.398	19.000	56.000	NA
	Abnormal	56.000	52.066	59.934	10.724	37.000	80.000
Weight	Normal	67.161	62.203	72.120	13.518	46.000	120.000	NA
	Abnormal	65.452	60.642	70.261	13.112	45.000	114.000
Entropy	Normal	0.356	0.339	0.373	0.047	0.240	0.467	2.28E−10
	Abnormal	0.233	0.205	0.262	0.077	0.002	0.368
Mean	Normal	0.865	0.804	0.925	0.164	0.558	1.263	6.82E−14
	Abnormal	0.410	0.335	0.484	0.203	0.001	0.815
SD	Normal	3.253	3.086	3.421	0.456	2.372	4.138	2.97E−11
	Abnormal	1.969	1.693	2.245	0.753	0.112	3.100