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. Author manuscript; available in PMC: 2012 Feb 1.
Published in final edited form as: Acad Radiol. 2010 Dec 3;18(2):220–229. doi: 10.1016/j.acra.2010.09.017

Table II.

The ANN overall classification performance levels measured by the areas under the ROC curves (AZ values) and associated standard deviations as a function of the number of ANN training iterations.

Number of iterations 500 1000 1500 2000 3000
Training 0.873 ± 0.021 0.893 ± 0.017 0.901 ± 0.018 0.909 ± 0.018 0.922 ± 0.017
Testing 0.826 ± 0.025 0.830 ± 0.023 0.804 ± 0.026 0.783 ± 0.030 0.778 ± 0.031