Fig. 2

Radiomics feature selection. a Selection of the tuning parameter λ in the LASSO model via mean square error on each fold in tenfold cross-test method, dotted vertical lines show the optimal values using the minimum criteria. b LASSO coefficient profiles of the 851 radiomics features, resulting in 8 nonzero coefficient features. c The most predictive feature subsets selected by LASSO and their correlation coefficients