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Abstract #5434

Dynamically Modified BHT Model Enhanced PRF Shift Thermometry for Monitoring Microwave Ablation

Jinchao Wu1, Xing Wei2, Jiafei Yang2, Bingyao Chen2, Zijing Dong3, Shuo Chen1, and Kui Ying1

1Key Laboratory of Particle and Radiation Imaging, Ministry of Education, Department of Engineering Physics, Tsinghua University, Beijing, People's Republic of China, 2Department of Orthopedics, First Affiliated Hospital of PLA General Hospital, Beijing, People's Republic of China, 3Department of Biomedical Engineering, Tsinghua University, Beijing, People's Republic of China

A Bio-Heat Transfer (BHT) model enhanced PRF method was introduced to improve the temporal resolution and to recover the lost signal caused by the susceptibility of probe in microwave ablation. Simulation results of MR-guided microwave ablation performed in an agar phantom show that the proposed method can recover the temperature map with the largest error less than 2°C and increase the temporal resolution to 1s or 0.5s with adequate computing capacity.

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