Abstract #1035

Fast field analysis for complex coils and metal implants in MARIE 2.0

Georgy D. Guryev^1,2, Athanasios G. Polimeridis³, Elfar Adalsteinsson^1,4,5, Lawrence L. Wald^5,6,7, and Jacob K. White¹

¹Dept of Electrical Engineering and Computer Science, Massachusetts Institute of Technology, Cambridge, MA, United States, ²CDISE, Skolkovo Institute of Science and Technology, Moscow, Russian Federation, ³Q Bio, Redwood City, CA, United States, ⁴Institute for Medical Engineering and Science, Massachusetts Institute of Technology, Cambridge, MA, United States, ⁵Harvard-MIT Division of Health Sciences Technology, Cambridge, MA, United States, ⁶Department of Radiology, Massachusetts General Hospital and Harvard Medical School, Athinoula A. Martinos Center for Biomedical Imaging, Charlestown, MA, United States, ⁷Harvard Medical School, Boston, MA, United States

When multicoil transmit arrays are used in high field scanners, patient-specific optimization can improve image quality and increase safety margins, particularly for patients with implants. The feasibility of performing such optimizations in real-time was demonstrated recently[5], using a combination of fast tissue mapping and voxel-based field simulation[4], but only for a single-port coil and an implant-free patient. In this abstract we describe new techniques for simulating complex coils that accelerates MARIE simulation as much as an order of magnitude, and an efficient approach to including metal implants. We demonstrate field analysis in minutes using the open-source simulator MARIE2.0.

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