FIG 7.

A–E, SVS (A) and TSI (B) findings in a patient with a pathologically determined diagnosis of recurrent glioblastoma multiforme. An axial turbo-FLAIR image (C) shows the location from which the SVS data were acquired. The location from which the TSI data were extracted is shown on the reconstructed Cho image (D). Overlaid on the Cho image are contours extracted from an inversion-recovery image (E) acquired at the same spatial location. The patient had prominent lipid resonance and otherwise reduced metabolic levels on both SVS and TSI. While a modest degree of Cho elevation is evident on both spectra, it is difficult to definitively infer the presence of tumor