Table 6.

Area under ROC (A_z) for the Sequential mode with CAD. The mapping of the LM(101) scale to the other scales was described in Table 1. The mean A_z was obtained by averaging the individual A_z values. The average A_z value derived from the average a and b parameters for the individual fitted ROC curves was also included for each condition.

Radiologist	LM	BI-RADS	LM-6 Categories	LM→BI-RADS
				(r5)	(5)	(7)
1	0.891	0.864	0.896	0.863	0.837	0.891
2	0.863	0.876	0.870	0.815	0.817	0.881
3	0.806	0.785	0.804	0.795	0.792	0.808
4	0.920	0.892	0.919	0.913	0.903	0.929
5	0.797	0.768	0.780	0.814	0.756	0.792
6	0.865	0.847	0.862	0.859	*	0.880
7	0.831	0.902	0.838	0.789	*	0.841
8	0.759	0.759	0.761	0.759	0.636	0.744
9	0.828	0.902	0.781	0.689	0.953	0.798
10	0.793	0.828	0.826	0.662	0.736	0.769
mean	0.835	0.842	0.834	0.796	*	0.833
ave (a,b)	0.843	0.851	0.847	0.806	*	0.843

^*indicates Az values that were not available due to failure of convergence of the MRMC program.