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. Author manuscript; available in PMC: 2016 Mar 2.
Published in final edited form as: J Neuroimaging. 2015 Aug 3;26(2):240–246. doi: 10.1111/jon.12281

Table 2.

The Optimal Cutoff Value for ROC Analysis

AUC Washout
Log Slope
GBM versus Hypovascular Mets 22.15 −0.04
Melanoma versus Hypovascular Mets 22.11 0.01

ROC analysis of the AUC showed that for GBM versus hypovascular metastases, sensitivity and specificity were optimized by a cutoff point at 22.15, while the cutoff point was 22.11 for melanoma metastases versus hypovascular metastases. The optimal cutoff point for the washout log slope was –0.04 for GBM versus hypovascular metastases and 0.01 for melanoma metastases versus hypovascular metastases.