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Abstract #4058

Direct Virtual Coil (DVC) for bone tumor temperature mapping

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

1 Tsinghua University, Beijing, Beijing, China, 2 Engineering Physics, Tsinghua University, Beijing, China, 3 Department of Orthopedics, First Affiliated Hospital of PLA General Hospital, Beijing, China

High speed and temperature accuracy are required in MR thermometry. While parallel imaging can speed up the acquisition, the corresponding reconstruction usually requires significant computation, especially when large coil arrays are used. This work evaluates the feasibility of direct virtual coil (DVC) for MR thermometry on bone tumor thermotherapy, in which parallel imaging and coil combination are combined into one step to reduce reconstruction time. It has been demonstrated that DVC can achieve similar temperature mapping accuracy compared to traditional parallel imaging method under different acceleration factors while it can be about twice faster.

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