Fig 1.

Brain MRE experimental setup and image processing. A, Brain MRE soft pillow driver placed within the 8-channel MR imaging head coil and positioned beneath the head to induce shear waves in the brain. B, Axial T2 FLAIR image of a glioblastoma, IDH1 wild type (51-year-old man), with tumor denoted by a solid white line, and peritumoral edema, by a black dotted line. MRE shear wave image (C) and elastogram (D) or stiffness map display a soft tumor with a stiffness of 1.1 kPa in the tumor compared with 3.5 kPa in a size-matched region of unaffected white matter on the contralateral hemisphere.