AJDRAJNR - American Journal of Neuroradiology

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FIG 4. ROC curves for patients with AD versus healthy subjects in the younger and older groups. Note the great differences in diagnostic performance between the younger and older groups. The Az value (0.94359) for early-onset AD was larger than that for late-onset AD (Az = 0.9018). True-positive fraction indicates sensitivity; false-positive fraction, 1 – specificity.





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Copyright © 2008 by the American Society of Neuroradiology. Print ISSN: 0195-6108 Online ISSN: 1936-959X