Table 2.

Comparison of the efficacy of AI models

Model	AUC (95%CI)	Sensitivity (%)	Specificity (%)	Accuracy (%)	P value
L9	0.849 (0.735–0.962)	76.9	93.2	87.1	0.4185#
L14	0.784 (0.655–0.913)	65.4	90.9	81.4
L7	0.887 (0.820–0.953)	71.8	93.4	85.0	0.0383*
L13	0.920 (0.851–0.989)	89.7	91.8	91.0

Note: AUC: area under the curve; 95% CI: 95% confidence interval; L9: L9 linear array probe, frequency range: 2.5-9.0 MHz, central frequency 6.5 MHz; L14: L14 linear array probe, frequency range: 3.0-14.0 MHz, central frequency 9 MHz; L7: L7 linear array probe, frequency range: 3-7 MHz, central frequency 4.0 MHz; L13: L13 linear array probe, frequency range: 3.6-13.5 MHz, central frequency 8 MHz; P value #: L9 vs. L14; *: L7 vs. L13