Abstract #1848
Use of a NURBS-Based, Full-Body Anatomy and FEA Model to Evaluate RF-Induced Heating during MR Imaging
Alan Leewood 1 , Sharath Gopal 1 , Kerim Genc 2 , Steve Cockram 3 , Philippe Young 3 , Jeff Crompton 4 , and Josh Thomas 4
1
MED Institute, Inc., West Lafayette, IN,
United States,
2
Simpleware
Ltd, VA, United States,
3
Simpleware
Ltd, Devon, United Kingdom,
4
AltaSim
Technologies, LLC, OH, United States
A full-body human anatomy and multiphysics finite
element analysis (FEA) model is developed to evaluate RF-induced
heating from MR imaging. The FEA approach provides a
coupled transient thermal solution and incorporates high
fidelity geometric features at minimal computational
cost, thereby overcoming two significant limitations of
the finite difference time domain (FDTD) method.
Specific absorption rates (SAR) from the study are in
good agreement with published results based on the FDTD
method; maximum temperature occurs at a location that is
consistent with previous simulation and experimental
results. This work will be extended to add passive
implants (e.g. stents and orthopedic devices) into the
anatomy.
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