Abstract #3822

Comparison of Cartesian MR thermometry approaches for focused ultrasound brain applications

Henrik Odéen¹, Viola Rieke¹, Sunil Patil², John Roberts¹, Himanshu Bhat³, Bradley D. Bolster Jr.⁴, and Dennis L Parker¹

¹Radiology and Imaging Sciences, University of Utah, Salt Lake City, UT, United States, ²Siemens Healthineers, Baltimore, MD, United States, ³Siemens Healthineers, Boston, MA, United States, ⁴Siemens Healthineers, Salt Lake City, UT, United States

Magnetic resonance guided focused ultrasound using MR thermometry (MRT) for therapy guidance is a promising thermal therapy for a wide range of neurological disorders. The current MRT method acquires a single 2D slice with low readout bandwidth to increase SNR and MRT precision, compensating for the fact that the body coil is used to receive during treatments. In this work we investigate trade-offs between 2D and 3D GRE and EPI approaches of MRT for brain FUS applications. A comparison between using the body coil and two 4-channel flex coils is also performed.

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