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Abstract #3220

An approach to Temperature-based Virtual Observation Points for Safety Assurance and Pulse Design

Giuseppe Carluccio 1,2 , Cem Murat Deniz 1,2 , and Christopher Michael Collins 1,2

1 Radiology, Center for Advanced Imaging Innovation and Research (CAI2R), New York University School of Medicine, New York, New York, United States, 2 Radiology, Bernard and Irene Schwartz Center for Biomedical Imaging, New York University, New York, New York, United States

Safety guidelines are provided by IEC to set maximum temperature and maximum SAR achievable during MRI scans. SAR-based safety evaluation of multichannel transmit systems has been accelerated using Virtual Observation Points to enable rapid RF safety monitoring and RF pulse design based on SAR constraints. In this work, using a matrix formalism to compute temperature, we propose a method to identify temperature based VOPs. Temperature based VOPs enable fast parallel transmit RF pulse design with iterative or non-iterative methods based on strict temperature constraints.

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