Cryoablation with MRI guidance is desirable is a feasible treatment for localized tumors. There is a MRI-conditional cryoablation system and, to the best of our knowledge, no previous report of RF heating/burn incidence. However, since the cryoneedles are metallic and the gas lines have metallic components, potential risks of RF heating/burn exists. In fact, an incidence of skin burn recently occurred in our institution during a MRI-guided liver treatment case. In this work, we demonstrated that RF heating could be significant during MRI-guided cryoablation and showed that several strategies could be potentially used to mitigate the risk.
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