FIG 4. Top, Sagittal image superimposed with the 6 x 6 x 6-cm PRESS VOI, the four 1.5-cm-thick HSI slices, a–d, and the brain stem glioma in an 11-year-old girl (arrow).

a–d, PRESS VOIs and FASI regions are marked with a solid black line on the corresponding axial T2-weighted images (FOV = 22 cm) from slices a–d. The dotted circles on axial images c and d indicate the location of the glioma.