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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