Figure 5
Human experiment results for the case of a patient with brain tumor of the glioblastoma. ROI is selected as the segmented white matter region using SPM. (a) Normalized magnitude images. Yellow arrows indicate the lobulated irregular rim enhancing lesion (R1-ROI) and the red rectangle region (R2-ROI) is selected to compare the conductivities. (b) Recovered high-frequency conductivity. (c) Intra-neurite volume fraction (IVF). (d) Recovered apparent extra-neurite conductivity using a reference ratio (\(\beta _r=0.41\)). (e) Recovered apparent extra-neurite conductivity by solving the minimization problem Eq. (18). (f) Indicator function \(\eta (\tilde{\sigma }_{ex,\beta _r})\) in Eq. (14) from the recovered extra-neurite conductivity using the fixed reference ratio \(\beta _r=0.41\).
