Magnetic Resonance Spectroscopy (MRS)

After reading this chapter, you should be able:

• To set out the physical mechanisms used to differentiate metabolites according to resonance frequency
• State the material conditions and optimization required to measure a spectrum
• List the quality criteria of a spectrum
• Present the different metabolites explored in brain MRS, their position on the spectrum and their interest
• Explain the different stages to obtain a monovoxel spectrum
• Describe PRESS and STEAM sequences and the influence of TE on the spectrum
• Specify the adaptations required for spectroscopic imaging: spatial encoding, reduced acquisition time