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Abstract #1653

Towards accurate temperature mapping in adipose and aqueous tissue with joint T1 and PRFS using Balanced SSFP

Mingming Wu 1,2 , Pauline Ferry 3 , Tim Sprenger 1,2 , Desmond Teck Beng Yeo 4 , Axel Haase 1 , and Silke Lechner-Greite 2

1 IMETUM, Technische Universitt Mnchen, Garching, Germany, 2 GE Global Research, Garching, Germany, 3 IADI, Nancy, Lorraine, France, 4 GE Global Research, Niskayuna, New York, United States

The presented work examines the potential of combining fast and accurate T1 mapping for temperature quantification in fat applying fast inversion recovery or saturation recovery bSSFP and jointly using phase maps for PRFS based thermometry in water-based tissue. Bloch simulations of the steady state phase demonstrate the feasibility of PRFS quantification with bSSFP phase images. First experimental T1 maps at a constant temperature of ex vivo pork lard are illustrated. The magnitude data of the steady-state phase image can be used for the T1 mapping as the magnitude with long or infinite inversion time.

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