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Abstract #1650

Dynamic 3D MR Thermometry in thoracic vertebrae using Controlled Aliasing in Volumetric Parallel Imaging (2D CAIPIRINHA)

Fuyixue Wang 1 , Zijing Dong 1 , Yuxin Hu 1 , Feiyu Chen 1 , Shuo Chen 2 , Bingyao Chen 3 , Jiafei Yang 3 , Xing Wei 3 , Shi Wang 2 , and Kui Ying 2

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

Microwave ablation for bone tumor requires large volume coverage of the diseased tissue and the surrounding healthy tissues, especially spinal nerves. We developed an accelerated dynamic 3D MR temperature estimation method based on the 2D CAIPIRINHA in order to obtain better temperature estimation accuracy while significantly reducing the acquisition time. Finally, we validate the advantages and feasibility of this method for monitoring the temperature change of spinal cord. Generally, this method also allows researchers to extend it to all common 3D parallel imaging for MR temperature monitoring to obtain higher temperature estimation accuracy.

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