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Abstract #0245

Fat-Referenced MR Thermometry in Heterogeneous Tissue Using IDEAL

Lorne Hofstetter1, Desmond Teck Beng Yeo2, Cynthia Davis2, Thomas K. Foo2

1GE Global Research, Niskayuna , NY, United States; 2GE Global Research, Niskayuna, NY, United States

Time-varying, non-temperature dependent phase changes affect the accuracy of conventional phase difference proton resonance frequency shift (PRFS) temperature mapping in the breast. We demonstrate a fat-referenced PRFS technique capable of correcting for this phase variation. This new approach reduced temperature measurement error in the left breast by a factor of 3.6 and in the right breast by a factor of 2.5 when compared to conventional phase difference techniques (n = 1).