Table 1. Summary of artificial intelligence studies on ultrasound features identifying benign and malignant thyroid nodules

Study	Patients	Method	Accuracy (%)	Sensitivity (%)	Specificity (%)
Zhao et al.20)	106	ML/SVM	82	91	78
Zhang et al.22)	826	ML/SVM	83	86.1	82.7
Park et al.21)	286	ML/SVM	75.9	90.4	58.8
Ko et al.25)	519	DL/CNN	87.3	90	82
Wu et al.24)	1,396	DL/CNN	82	85	78
Kim et al.23)	757	DL/CNN	85.1	81.8	86.1

ML: machine learning, SVM: support vector machine, DL: deep learning, CNN: convolutional neural network.