Fig. 4.
Receiver operating characteristic (ROC) curves for the two morphological and three image-based classification schemes. The line with ovals and the line with rectangles represent the morphology classifiers based on the high disease group (i.e., Eq. 7) and the disease factor (i.e., Eq. 6), respectively. The solid, dashed-dotted, and dashed curves represent the combined, fractional ventilation (R), and apparent diffusion coefficient (ADC) classifiers, respectively. The areas under the curves are shown as shown. ADCBC and RBC, Box-Cox-transformed ADC and R, respectively.