PRFS- Based MR Thermometry with Correction for Fat Interference

PRFS-based MR thermometry is inaccurate in tissues containing both fat and water, due to the lack of temperature-induced frequency shift in fat protons. A geometric-model based method was used to correct the conventional PRFS method. Continuous MR thermometry experiments were performed in phantoms, and the results suggested the proposed method can compensate the deviation of measured temperature in fat phantoms and would be useful for applying PRFS-based thermometry in medium containing both fat and water.