Images of the process of automated parcellation of the MRI of the brain specimen using FreeSurfer (Fischl, 2012) yielding the region of interest. A-D. Coronal sections through the MRI. Hatched region indicates the FG; E-H. Blockface images corresponding to A-D, with the FG outlined. I. The surface of the brain as reconstructed and segmented using the MRI and FreeSurfer. The FG is outlined in black. Arrows indicate the approximate positions of the coronal sections in relation to the surface reconstruction.
Scan parameters: 3-D acquisition, T1-weighted, fast gradient echo; pixel spacing: 0.9375mm × 0.9375mm; slice thickness: 1.2mm; TE=4.832; TR=10.612.