Figure 5.

HP-MRI: (a) Coronal T₂ weighted image with spectroscopic grid. The black square over the tumour denotes the location of the four spectra presented in (b). (b) Four spectra across the black square in the tumour area acquired 25 sec after injection. (c) Summed spectrum, derived from the addition of the four spectra (b) across the tumour, with the [1-¹³C] pyruvate signal (~171 ppm), the [1-¹³C] pyruvate-hydrate signal (~179 ppm) and [1-¹³C]-lactate signal (~184 ppm).