(a)
(b)
(c)
Figure 5: Receiver operating characteristic curves using CRP levels to determine active versus nonactive disease with MaRIA (a), MaRIA and ADC (b), and MaRIA, ADC, and MIV (c) as the variables. CRP: C-reactive protein; MaRIA: magnetic resonance index of activity; ADC: apparent diffusion coefficient; MIV: metabolic inflammatory volume.