Abstract #1091

Towards motion robust MRT during Microwave Hyperthermia by integrating an 8-channel receiver coil array into the MRcollar

Kemal Sumser¹, Gennaro G Bellizzi¹, Juan A Hernandez-Tamames², Gerard C van Rhoon¹, and Margarethus M Paulides^1,3

¹Department of Radiotherapy, Erasmus Medical Center Rotterdam, Rotterdam, Netherlands, ²Department of Radiology and Nuclear Medicine, Erasmus Medical Center Rotterdam, Rotterdam, Netherlands, ³Department of Electrical Engineering, Eindhoven University of Technology, Eindhoven, Netherlands

Synopsis

In the head and neck region, precise heating and temperature monitoring is a challenge. The MRcollar, an MR compatible head and neck microwave hyperthermia applicator has been developed for conformal heating and to enable MR thermometry (MRT) during the treatment. To deliver on the needs of accurate temperature monitoring, the MRcollar has been equipped with 8-channel receiver coil array. This coil array improves increased the SNR by 5 times compared to the body coil of the MRcollar. Increase in the SNR also led to improvement in the MRT precision, from 0.91 °C to 0.37 °C.

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