Abstract #1181

Toward hybrid MR thermometry in aqueous and adipose tissue using simultaneous dual contrast weighting with double echo RARE imaging

Hendrik Paysen¹, Katharina Paul¹, Michal Pham¹, Lukas Winter¹, and Thoralf Niendorf^1,2,3

¹Berlin Ultrahigh Field Facility (B.U.F.F.), Max Delbrück Center for Molecular Medicine in the Helmholtz Association, Berlin, Germany, ²Experimental and Clinical Research Center (ECRC), a joint cooperation between the Charité Medical Faculty and the Max Delbrück Center for Molecular Medicine, Berlin, Germany, ³MRI.TOOLS GmbH, Berlin, Germany

Proton resonance frequency (PRF) shift is the most common MR thermometry (MRTh) technique for water based tissue. For adipose tissue MRTh exploits the temperature dependent relaxation times T₁ and T₂. Hybrid methods that allow simultaneous acquisition of water and fat based thermometry are of great clinical need. Recognizing this need this work investigates a hybrid temperature mapping technique, designated as 2in1-Thermometry, which combines simultaneous PRF and T₂-based temperature mapping using simultaneous dual contrast weighting with double echo RARE imaging.

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