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Abstract #4161

Temperature-based MRI safety assessment with a simplified body model

Giuseppe Carluccio1,2, Can Akgun3, John Thomas Vaughan4, and Christopher Michael Collins1,2

1Radiology, Center for Advanced Imaging Innovation and Research (CAI2R), New York, NY, United States, 2Radiology, Bernard and Irene Schwartz Center for Biomedical Imaging, New York, NY, United States, 3Flywheel Exchange, Minneapolis, MN, United States, 4Radiology, Columbia University, New York, NY, United States

The shape of the patient affects the distribution of the electromagnetic fields used in MRI. Therefore, it is important to run simulations on body models similar to the shape of the patient. While it was previously shown that a simplified model obtained with automatic segmentation tools could be used to perform a safety assessment based on SAR, we investigate through numerical simulations the possibility to perform temperature-safety assessment with a simplified model. We compare the results obtained with a detailed model comprising 35 tissues, one with 3 tissues (lungs, muscle, fat), and one with 4 tissues (lungs, muscle, fat, skin).

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