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. Author manuscript; available in PMC: 2012 Aug 21.
Published in final edited form as: Nucl Instrum Methods Phys Res A. 2011 Aug 21;648 Supplement 1:S297–S301. doi: 10.1016/j.nima.2010.11.042

Table 2.

This table illustrates the calculation of AFROC operating points. The zero bin represents unmarked normal images and unmarked lesions.

TOTAL BINS AND COUNTS
Bin 0 Bin 1 Bin 2 Bin 3 Bin 4 Bin 5 Bin 6
FP 50 32 0 4 8 1 3 2
LL 98 48 5 5 6 5 5 24
AFROC OPERATING POINTS
Bins ≥ 6 Bins ≥ 5 Bins ≥ 4 Bins ≥ 3 Bins ≥ 2 Bins ≥ 1 Bins ≥ 0
FPF 0.040 0.100 0.120 0.280 0.360 0.360 1
LLF 0.245 0.296 0.347 0.408 0.459 0.510 1