Abstract #3524

Dipole Array Design Considerations for Head MRI at 10.5T

Jinfeng Tian¹, Russell Lagore¹, Lance Delabarre¹, and J. Thomas Vaughan¹

¹U. of Minnesota, Minneapolis, MN, United States

An 8-channel dipole array is a promising structure for human head imaging at 10.5T. In order to optimize the structure for efficiency and homogeneity over the brain, many variations of the dipole were numerically simulated and compared. The variations include varying dipole lengths, warping the dipole, adding shielding, adding dielectric padding or dielectric mirrors and including decoupling capacitors. Compared to a design in use, numerical results predict the RF homogeneity can be greatly improved with a 210 mm dipole array while simultaneously lowering the peak local 1 gram and 10 gram SAR.

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