Fig. 1
Representative anatomical MR images. a A sagittal and two axial T1-weighted scans showing the signal intensities of the two-chamber calibration tube. The dashed horizontal lines indicate the positions of the axial scans. b A proton density-weighted image, a precontrast T1-weighted image, and a postcontrast T1-weighted image showing the signal intensities of the tumor tissue. Scale bars: 2 cm