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Abstract #1806

Accelerated Phase Reconstruction Using Sharable Information from Reference Scan and Its Application for Real-Time MR Thermometry

Feiyu Chen1, Enhao Gong2, Shuo Chen3, Xinwei Shi1, Feng Huang4, Shi Wang3, Kui Ying3

1Department of Biomedical Engineering, Tsinghua University, Beijing, China; 2Electrical Engineering, Stanford University, Stanford, CA, United States; 3Department of Engineering Physics, Tsinghua University, Beijing, China; 4Philips Healthcare, Gainesville, FL, United States

MR thermometry based on proton resonance frequency shift (PRFS) is a promising method for noninvasive temperature measurement. In this method, phase differential information is highly needed during the acquisition and reconstruction process. Previous research has demonstrated that the correlation between different scans could be used for reconstruction from under-sampled data. Based on this demonstration, a method for accelerated temperature mapping using sharable information from reference scans is proposed in our research. Phantom experiments have demonstrated the accuracy and feasibility of our new framework in comparison with previous parallel imaging methods and parallelCCS methods.

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Keywords

accelerate accelerated accuracy accurate achieves acquisition adaptive addition agreement alias analyzed application apply artifacts audience better biomedical blue brightened central channels china coil coils combined complex composition compressed conducted containing contains cooling coronal correlation curves defined demonstration differential displays distribution diverse domains done dynamic edge electrical engineering error evolution experiment exploit exploited extract extracted feasibility fidelity frame frames framework frequency fully future general gong good gradient growl heating idea implemented improving in vivo initialization lead lowest makes maps meanwhile mixed monitoring noninvasive operator optimize optimized outer overlooked parallel partially performance phantom physics precise precision previous procedure proposed proton providing real reconstruct reconstructed reconstruction reduced reduction requirement researchers resolution respectively resultant retrospectively reveal ring robust sampled sampling scanner sensing sensitivity sharable significantly slices space spatially specially spirit strengthen structure subsequent subtracted table target temperature temporal term thermal thermometry thrive trajectory transform treatment useful usually water wavelet