Prediction of different stages of rectal cancer: Texture analysis based on diffusion-weighted images and apparent diffusion coefficient maps

Table 6 Spearman correlation coefficients for independent predictors of N-stage

Features	N stage
	Rs	P value
DWIb=0
Sum average	-0.188	0.044
Gray level nonuniformity	-0.149	0.038
SymletH	0.211	0.024
DWIb=1000
Sum average	-0.209	0.025
Information correlation	-0.187	0.045
Long run low gray level emphasis	-0.223	0.017
SymletH	0.199	0.033
ADC maps
ADCmax	-0.204	0.029
ADCmean	-0.273	0.003
Information correlation	-0.199	0.033

DWI: Diffusion-weighted imaging; ADC: Apparent diffusion coefficient.