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Figure 1


Fig. 1 —Empiric receiver operating characteristic (ROC) curves for MRI alone (solid line) and for combined MRI and MR spectroscopic imaging (MRSI) (dotted and dashed line). Areas under ROC curves (AUCs) are 0.70 for MRI alone and 0.63 for combined MRI and MRSI (no significant difference; p = 0.32). Comparison of AUCs is based on DeLong, DeLong, and Clarke-Pearson [29] method. Dotted line = test of no value (50/50 chance of being correct).