Figure 1: MRS thermometry temperature standard Development of Magnetic Resonance Spectroscopy thermometry standards Magnetic Resonance Spectroscopy (MRS) is a specialist, non-invasive technique in medicine for observing and characterising body tissue. There is a variety of ways that MRI spectroscopy can be used, for example in determining the internal temperature of parts of the body. Proton resonance frequency in water molecules shifts with the temperature and this has been recently investigated with reference to a particular metabolite in the body (n-acetyl aspartate, in the brain). Currently, the method of MRS thermometry is in the research phase and the results are promising. However, given that clinical decisions in the future may be made on these measurements, it is very important t

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