Abstract #4161

Temperature-based MRI safety assessment with a simplified body model

Giuseppe Carluccio^1,2, Can Akgun³, John Thomas Vaughan⁴, and Christopher Michael Collins^1,2

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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