Table 4.

Differences in the optimal texture features on T2W imaging between two groups dichotomized by 3-year survival

Texture features on T2WI	≥ 3 years	< 3 years	P value	Cutoff value	Sensitivity	Specificity	AUC (95%CI)
SumEntrp(2,0)	1.206 ± 0.123	1.319 ± 0.175	0.004*	1.250	70.37%	72.00%	0.709 (0.610–0.794)
Correlat(1,− 1)	0.933 ± 0.049	0.956 ± 0.036	0.032*	0.978	44.44%	94.67%	0.672 (0.572–0.762)
Entropy(3,0)	1.441 ± 0.173	1.595 ± 0.250	0.006*	1.619	51.85%	86.67%	0.702 (0.603–0.788)
SumEntrp(3,0)	1.108 ± 0.136	1.245 ± 0.194	0.002*	1.282	51.85%	89.33%	0.720 (0.622–0.804)
Entropy(4,0)	1.408 ± 0.177	1.589 ± 0.238	0.001*	1.622	51.85%	90.67%	0.729 (0.632–0.812)
SumEntrp(4,0)	1.054 ± 0.141	1.211 ± 0.185	< 0.001*	1.075	77.78%	65.33%	0.753 (0.657–0.833)
SumEntrp(0,4)	1.075 ± 0.186	1.241 ± 0.172	< 0.001*	1.222	66.6%	78.6%	0.760 (0.665–0.839)
Entropy(5,0)	1.370 ± 0.189	1.564 ± 0.247	< 0.001*	1.531	55.56%	82.67%	0.724 (0.627–0.808)
SumEntrp(5,0)	1.000 ± 0.160	1.162 ± 0.201	< 0.001*	1.105	62.96%	78.67%	0.736 (0.640–0.819)
SumAverg(2,0)	49.642 ± 10.517	49.230 ± 6.323	0.811	–	–	–	–

Texture features = the optimal feature group. The values of texture features = the mean value ± standard deviation for texture features. The number in the parenthesis for texture features on T2WI represented the coordinate of the matrix

AUC area under the curve, CI confidence interval

^*Statistical significance