Table 6.

Diagnostic value of ACR-TIRADS, K-TIRADS, C-TIRADS.

	Sensitivity (%)	Specificity (%)	Accuracy (%)	PPV (%)	NPV (%)
All Nodules
ACR-TIRADS	78.05	74.36	76.25	80.00	76.32
K-TIRADS	68.29	79.49	75.00	77.78	70.45
C-TIRADS	73.17	84.62	78.75	83.33	75.00
Nodules ≤1 cm
ACR-TIRADS	74.07	64.71	70.45	76.92	61.11
K-TIRADS	66.67	70.59	68.18	78.26	57.14
C-TIRADS	70.37	76.47	72.73	82.61	61.90
Nodules >1 cm
ACR-TIRADS	85.71	81.82	83.33	75.00	90.00
K-TIRADS	71.43	86.36	80.56	76.92	80.61
C-TIRADS	78.57	90.91	86.11	84.62	86.96