Table 2.

Diagnostic Performance of ΔTHC 23.9% and ΔSIZE 42.6% in Predicting 61 Breast Cancers Lesions’ Response to NAC at Different Cycles

Parameters at Different Time Points	Sen	Spe	PPV	NPV	Accuracy	AUC (95% CI)	P Value
ΔTHCmean (t1)	0.34	0.727	0.850	0.195	0.410	0.534(0.401-0.663)	.6668
ΔTHCmean (t2)	0.48	0.727	0.889	0.235	0.525	0.604(0.470-0.727)	.1893
ΔTHCmean (t3)	0.62	0.727	0.912	0.296	0.639	0.674(0.542-0.788)	.0270
ΔTHCmean (tL)	0.70	0.727	0.921	0.348	0.705	0.714(0.584-0.822)	.0059
ΔSIZEmean (t1)	0.08	0.909	0.800	0.179	0.230	0.505(0.374-0.636)	.9121
ΔSIZEmean (t2)	0.38	0.909	0.950	0.244	0.475	0.645(0.512-0.763)	.0115
ΔSIZEmean (t3)	0.62	0.818	0.939	0.321	0.656	0.719(0.589-0.827)	.0018
ΔSIZEmean (tL)	0.86	0.455	0.878	0.417	0.787	0.657(0.525-0.774)	.0567