Abstract #3232

An 8-element torso RF coil array for the Australian inline MRI-Linac: Initial imaging results

Mingyan Li¹, Ewald Weber¹, David Waddington², Shanshan Shan², Paul Liu², Bin Dong³, Craig Freakley¹, Stuart Crozier¹, and Feng Liu¹

¹School of Information Technology and Electrical Engineering, The University of Queensland, Brisbane, Australia, ²ACRF Image X Institute, The University of Sydney, Sydney, Australia, ³Ingham Institute, Sydney, Australia

Synopsis

The hybrid MRI-Linac system demands dedicated radiolucent imaging coils to visualise and track tumours without interfering the Linac beams. A radiolucent whole-body transceive RF coil for the Australian inline MRI-Linac system has been previously developed and produced images with good quality. Recently, an 8-element torso RF coil array was manufactured to provide better SNR with fast imaging capability, which will facilitate real-time tumour tracking during radiotherapy. Initial imaging results acquired from the 1.0 T Australian MRI-Linac system on a phantom and a volunteer demonstrate the potential benefits of such a torso coil array for MRI-guided radiotherapies.

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