(A) 2D 16x16 in vivo data with the slice FOV (yellow box) and volume of interest (white box), (B) displaying the reconstructed metabolite peaks in a voxel (indicated in red in (A)) from raw CSI data (blue) and the raw RAPID-SI data (red), zero-filled to full time length of 512 points with R = 8, (C) showing the reconstructed metabolite peaks in the same voxel from the raw CSI data (blue) and the pre-processed RAPID-SI data (red) with R = 4, (D) showing the reconstructed metabolite peaks in the same voxel from the raw CSI data (blue) and pre-processed RAPID-SI data (red) with R = 8. Metabolite maps (interpolated to a resolution of 32 x 32) with color-bar representing peak amplitudes of Cr, NAA, Cho and mI from the FOV using (E) raw CSI data, (F) RAPID-SI (R = 4), (G) RAPID-SI (R = 8).