Figure 6
Estimated two-pool MT model parameters of 22Rv1 and DU145 tumour and necrotic regions. The parameters include the transverse relaxation time T2 of the free pool (T2,F), the product of the exchange rate of magnetization from the MT to the free pool (RMT) and equilibrium magnetization of the MT pool relative to the free pool (M0,MT), and the T2 of the MT pool (T2,MT). RMT and M0,MT are multiplied because they are coupled (see Supplementary Fig. S3 for separate comparison); together they represent the magnitude of the MT effect. **p < 0.01. ***p < 0.001.
