Fig. 1
From: Delineation of recurrent glioblastoma by whole brain spectroscopic magnetic resonance imaging
Whole brain sMRI workflow and contour generation. Following surgical resection, a diagnostic MRI was obtained, and the residual post-contrast enhancing volume and cavity were contoured (T1PC + cavity). Whole brain sMRI was performed and co-registered to the diagnostic MRI. rChoNAA > 2 maps were generated using the MIDAS software and contoured in the treatment planning software. The GTV was defined as the union of the T1PC + cavity and the rChoNAA > 2 map. CTV (3 mm) and PTV (3 mm) expansions were then generated