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.