3D Eigenmodes Optimizations for 3D Imaging at 7T
Yujuan Zhao 1 , Narayanan Krishnamurthy 1 , Sossena Wood 1 , Tiejun Zhao 2 , Shailesh B. Raval 1 , and Tamer S. Ibrahim 1
University of Pittsburgh, Pittsburgh,
Pennsylvania, United States,
Medical Solutions USA, Pittsburgh, Pennsylvania, United
In this work, calculated eigenmodes of a 20-channel
array coil (Tic-Tac-Toe based) were used to optimize B1+
field. An exhaustive search was used to go through all
possible eigenmodes combinations. Field uniformity,
field efficiency and SAR are used to evaluate the
optimized cases. Multi-level/row coil with eigenmode
optimization methods could facilitate fields uniformity
in the entire brain including the cerebellum region.
High quality 3D MPRAGE could be acquired.
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