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Abstract #4132

Thermometry of Fat-Water-mixed Tissues based on Synthesized Temperature Dependence of T2's of Methylene and Methyl in conjunction with PRF of water

Kagayaki Kuroda1, Satoshi Yatsushiro1, Yuta Hiranobu1, Takuya Watanabe1, Toru Niwa2, and Yutaka Imai2
1Department of Human and Information Sciences, School of Information Science and Technology, Tokai University, Hiratsuka, Japan, 2Department of Radiology, School of Medicine, Tokai University, Isehara, Japan

An practical MR thermometry technique for fat-water mixed tissues was proposed. Fatty tissue temperature was quantified by T2 synthesized from T2’s of methylene chain and terminal methyl obtained by chemical shift suppression of water and surrounding fatty acid components. While the aqueous tissue temperature was estimated by PRF shift of water proton. Those maps were then integrated into one based on the fat and water contents in each voxel. The resultant in vitro images demonstrated the usefulness of the technique.

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