Clinical characteristics
PTC, NB
REGRESSION, PAPILLARY THYROID CARCINOMA
There were 138 PTC patients in all, 87 of whom were women (mean age, 41.81 ± 11.23 [range, 25–57] years), and 51 of them were men (mean age, 43.82 ± 12.18 [range, 28–65] years). In Table Comparison of clinical and ultrasonic characteristics of the PTC patients in the training and validation dataset.The relationship between the BRAFPatient characteristics of the PTC with BRAFClinical characteristics, such as age and gender, did not differ significantly between the two groups (P > 0.05). There were no significant differences in mean nodule size between the two groups (BRAFPredictive performance comparison of machine learning algorithms in the training and validation cohorts.AUC, area under the curve; ACC, accuracy; SEN, sensitivity; SPEC, specificity; NPV, negative predictive value; PPV, positive predictive value; USR, ultrasound radiomic; PTC, papillary thyroid carcinoma; SVM-L, support vector machine with linear kernel;SVM-RBF, support vector machine with radial basis function; KNN, K-nearest neighbour; NB, naïve bayes; LDA, linear discriminant analysis;LR, logistic regression.