Table 1.

Radiomics risk score model for prognosis and the associated radiomics features.

Category	Feature	Cox-LASSO coefficient
Shape	Maximum 2D dameter	0.1581
GLCM	Autocorrelation	0.0409
GLCM	IMC2	−0.0050
GLSZM	Large area emphasis	−0.0067
Margin	CDF slope skewness	0.1930

GLCM gray-level co-occurrence matrix, GLSZM gray-level size-zone matrix, IMC informational measure of correlation, CDF cumulative distribution function. The optimal penalty is the penalty term of the Cox-LASSO model.