Additional file 1 of Ultrasound-based radiomics analysis for preoperative prediction of central and lateral cervical lymph node metastasis in papillary thyroid carcinoma: a multi-institutional study

Additional file 1. Figure S1. The flowchart of the radiomics feature selection. a) Procedure of features selection for establishing the predictive model for central LNM; b) procedure of features selection for developing the predictive model for lateral LNM. ICC, inter-and intra-class correlation coefficients; GA, genetic algorithm; mRMR, minimum redundancy maximum relevance; LASSO, least absolute shrinkage and selection operator; LNM, lymph node metastasis. Table S1. Radiomic features for predicting central LNM and weighting coefficients after LASSO regression. Table S2. Radiomic features for predicting lateral LNM and weighting coefficients after LASSO regression.