It detects tumors that were unfound in earlier brain scans. A conventional scan uses nuclear magnetic resonance imaging. This means that echoes of radio waves are sent to the brain to image a picture of the brain. This image shows the brain's structure. Multi-Voxel MR Spectroscopy uses state of art software to analyze radio waves for signature patterns called spectra.
Different chemicals produce different types of spectra.
These chemicals are indicative of what is going on in the brain. If there is a Choline spectra, it means that a tumor is growing in the brain. Another dangerous chemical that signifies disease is free lipids. If there are spectra belonging to free lipids, it means that this chemical is present in the scanned brain. This is a bad sign as this chemical is indicative of a necrotic or rotting brain.