Feature selection and optimal VMI sequence screening
REGRESSION
A total of 107 radiomics features with interobserver ICC value > 0.75 were extracted from ROIs based on 40-65 keV images of AP, VP, and conventional 120kVp respectively. Then the optimal radiomics features of each sequence remained respectively after LASSO, which were devoted to calculating 14 radiomics-based scores by multivariate logistic regression.The diagnostic performance of 14 radiomics-based scores was detailed in Supplementary Table A