Simplified intravoxel incoherent motion DWI for differentiating malignant from benign breast lesions

European Radiology Experimental

Table 7 Results of the receiver operating characteristic analysis for the differentiation between benign and malignant lesions group B versus group C

Test variable	Numbers	AUC	Standard error^a	Asym. sign.	Asym. 95% CI		Cutoff point	Sensitivity	Specificity	Accuracy
Test variable	Numbers	AUC	Standard error^a	Asym. sign.	Lower bound	Upper bound	Cutoff point	Sensitivity	Specificity	Accuracy
Vital tumour ROIs
ADC	30 versus 105	0.868	0.048	< 0.001	0.772	0.964	1,279.8	0.924	0.800	0.896
D₁′	30 versus 105	0.859	0.051	< 0.001	0.759	0.960	1,238.7	0.952	0.767	0.911
D₂′	30 versus 105	0.870	0.047	< 0.001	0.775	0.964	1,055.2	0.867	0.833	0.859
f₁′ #	30 versus 105	0.562	0.067	0.355	0.429	0.694
f₂′ #	30 versus 105	0.546	0.066	0.491	0.414	0.677
D*′ #	30 versus 105	0.528	0.067	0.676	0.395	0.661
D₁′ + f₁′	30 versus 105
D₂′ + f₂′	30 versus 105
Hot spot ROIs
ADC	30 versus 105	0.858	0.051	< 0.001	0.758	0.959	1,327.2	0.952	0.767	0.911
D₁′	30 versus 105	0.870	0.047	< 0.001	0.777	0.964	1,229.2	0.971	0.767	0.926
D₂′	30 versus 105	0.883	0.044	< 0.001	0.797	0.970	1,056.6	0.905	0.800	0.881
f₁′ #	30 versus 105	0.795	0.045	< 0.001	0.706	0.884	69.0	0.724	0.733	0.726
f₂′ #	30 versus 105	0.751	0.049	< 0.001	0.653	0.849	109.3	0.819	0.600	0.770
D*′ #	30 versus 105	0.633	0.061	0.027	0.513	0.753	16,774.8	0.771	0.500	0.711
D₁′ + f₁′	30 versus 105						1,229.2/69.0	0.695	0.900	0.741
D₂′ + f₂′	30 versus 105						1,056.6/109.3	0.743	0.900	0.778