The combination of magnetic resonance spectroscopy (MRS), diffusion tensor imaging (DTI) (1,2) and dynamic susceptibility contrast (DSC) imaging provides high sensitivity and specificity in the spatial localization of intra-cranial tumors and differentiation from unaffected healthy tissue. Conventional MRS studies with single voxel or 2D chemical shift imaging (CSI) methods typically suffer from poor spatial resolution, limited tissue coverage and partial volume effects. The investigators are therefore proposing to use a novel 3D high resolution whole-brain echo planar spectroscopic imaging (3D-EPSI) method in this study. The investigators hypothesize that a combination of 3D-EPSI, DSC-MRI and DTI will facilitate accurate and highly specific spatial localization of brain tumor data in three-dimensional maps. Previous studies have demonstrated elevated relative cerebral blood volume (rCBV), Ktrans in tumor tissue (1,3) along with choline (Cho) concentration (4,5) relative to creatine (Cr) and n-acetylaspartate (NAA), along with enhancement under DSC-MRI indicative of increased uptake of the contrast agent.