PTC	papillary thyroid carcinoma
C-PTC	classical papillary thyroid carcinoma
FV-PTC	follicular variant papillary thyroid carcinoma
FNAB	fine-needle aspiration biopsy
BRAF	B-Raf proto-oncogene, serine/threonine kinase
RAS	rat sarcoma viral oncogene homolog
CDFI	color Doppler flow imaging
B-mode	brightness-mode ultrasound
ACR TI-RADS	American College of Radiology Thyroid Imaging Reporting and Data System
SVM	support vector machine
RF	random forest
GBDT	gradient boosting decision trees
XGBoost	extreme gradient boosting
SHAP	SHapley Additive exPlanations
GLDM	gray-level dependence matrix
GLCM	gray-level co-occurrence matrix
WHO	World Health Organization