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Abstract #5078

Temperature Mapping of Fluorinated (19F) Gas in a Cool Down Experiment

Tobias J. Hoh1,2, Eduardo Coello1,2, Jorge Carretero Benignos2, Axel Haase1, and Rolf F. Schulte2

1Technische Universit√§t M√ľnchen, Munich, Germany, 2GE Global Research, Munich, Germany

Magnetic resonance imaging (MRI) temperature mapping of gases is challenging due to limited sensitivity. In this proof of concept study, proton thermometry methods from tissue temperature monitoring were transferred to 19F gas MRI.

A phase-dependent 19F resonance frequency shift temperature mapping is proposed for fluorinated gas at 3T based on a spiral readout to overcome limitations of ultra-short relaxation times.

This work demonstrates the feasibility of 2D thermometry in a canonical setup with inert fluorinated gases.

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