Table 2.

DCE-MRI and PET-CT imaging metrics used to determine accuracy in predicting disease progression vs radiation injury

Variables	Disease Progression			Radiation Injury			Pa	AUC
	Mean	Range	SE	Mean	Range	SE
DCE-MRI
Vpratio	6.2	1.5–41.9	1.3	2.1	1.1–7.8	0.4	<.001	0.87
Ktransratio	31.8	0.4–363	10.9	6.3	0.3–28.4	2.1	.002	0.76
K21ratio	91.8	1.0–700	24.6	54.7	0.7–250	19.6	.21	0.61
Veratio	928	3.6–17 360	616	1068	1.4–12 275	770	.17	0.62
AUPCratio	7.9	1.3–47.3	1.5	9.5	1.2–39.0	2.9	.18	0.62
PET-CT
SUVratio	1.6	1.0–4.2	0.1	1.1	1.0–1.9	0.1	.002	0.75

^aWilcoxon rank sum test.