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. Author manuscript; available in PMC: 2007 Jun 18.
Published in final edited form as: Med Phys. 2007 Feb;34(2):400–407. doi: 10.1118/1.2405324

Table 1a.

Results of JAFROC study for the mass detection task at the three dose levels (100%, 50%, and 30%). FOM = Figure of Merit; LLF = Lesion Localization Fraction; NLF = Non-Lesion Localization Fraction

100%
50%
30%
Radiologist FOM LLF NLF FOM LLF NLF FOM LLF NLF
1 0.746 0.72 0.48 0.768 0.77 0.26 0.751 0.68 0.38
2 0.771 0.77 0.42 0.753 0.75 0.42 0.705 0.68 0.40
3 0.712 0.71 0.84 0.681 0.83 1.00 0.632 0.82 0.86
4 0.734 0.80 1.02 0.649 0.82 1.10 0.650 0.78 0.82

Means 0.741 0.75 0.69 0.713 0.79 0.70 0.685 0.72 0.62