Abstract #4396

Exploring how modeling the head as a multi-layered vs. uniform sphere affects ultimate intrinsic signal-to-noise ratio and coil performance prediction

Jonghyun Bae^1,2,3, Manushka V Vaidya^1,2, and Riccardo Lattanzi^1,2,3

¹Center for Advanced Imaging Innovation and Research (CAI2R), Department of Radiology, New York University School of Medicine, New York, NY, United States, ²Bernard and Irene Schwartz Center for Biomedical Imaging, Department of Radiology, New York University School of Medicine, New York, NY, United States, ³Sackler Institute of Graduate Biomedical Sciences, New York University School of Medicine, New York, NY, United States

We investigated differences in ultimate intrinsic SNR and simulated SNR for finite coils when modeling the human head as a single-layer uniform sphere with average brain electrical properties vs. a three-layer sphere that accounts also for skull and skin tissue. We show that the uniform sphere provides a good approximation of the head for simulations up to 3T, but becomes less accurate at ultra-high field strengths.

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