Abstract #1497

Bio Heat Transfer Model Based Temporally Constrained Reconstruction for Accelerated MR Temperature Imaging

Shihan Qiu¹, Jinchao Wu², Bingyao Chen³, Jiafei Yang³, Xing Wei³, and Kui Ying^2,4

¹Department of Biomedical Engineering, Tsinghua University, Beijing, China, ²Department of Engineering Physics, Tsinghua University, Beijing, China, ³Department of Orthopedics, First Affiliated Hospital of PLA General Hospital, Beijing, China, ⁴Key Laboratory of Particle and Radiation Imaging, Ministry of Education, Medical Physics and Engineering Institute, Tsinghua University, Beijing, China

Thermal therapies require accurate and real-time temperature monitoring to guide the treatment. To achieve higher temporal resolution in MR temperature imaging, we introduced bio heat transfer model to predict temperature maps, which are combined with previous image to act as constraints in the reconstruction of under-sampled data. An inverse optimization is also included to make the BHT model self-adaptive. Through robustness verifying experiment and heating simulation, the ability of the proposed method to provide accurate reconstruction at a high reduction factor is demonstrated in this study.

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