Fig. 6
Quantitative analysis of the decrease of T2 relaxation time and TBR values of tumors between control and treatment groups after injection of 18F-RGD@USPIO. A ΔT2 at baseline (Day 0, 6 h post-contrast) and follow-up (Day 7). B The change of ΔT2 values at Day 7 compared to baseline measurement (ΔΔT2). C TBR at baseline (Day 0, 2 h post-injection) and follow-up (Day 7). D The change of TBR between baseline and follow-up. Error bars denote standard errors, Mann–Whitney U-test were applied **P < 0.05