Does the application of diffusion weighted imaging improve the prediction of survival in patients with resected brain metastases? A retrospective multicenter study

Table 3 Survival modelling for lung cancer cases alone (n = 115)

Model	AIC	Concordance	R²
Graded Prognostic Assessment (GPA)	594.92	0.5477	0.0225
Recursive Partitioning Analysis (RPA)	581.92	0.5719	0.1116
Tumor ADC	581.94	0.5771	0.0959
GPA + Tumor ADC	584.93	0.5862	0.1192
RPA + Tumor ADC	575.08	0.5974	0.1773
GPA + WBRT + Tumor ADC	578.52	0.6363	0.1813
RPA + WBRT + Tumor ADC	569.58	0.6523	0.2293

ISSN: 1470-7330