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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