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Abstract #0747

Improved Image Quality and Decreased Power Deposition in the Spine at 3T using Extremely High Permittivity Materials

Kirsten Koolstra1, Peter Börnert2, Wyger Brink1, and Andrew Webb1

1Radiology, Leiden University Medical Center, Leiden, Netherlands, 2Philips Research Hamburg, Germany

High field MR imaging of the spine suffers from a low transmit efficiency. The aim of this study is to improve the transmit profile of the 3T body coil in the spine region by using extremely high permittivity ceramics. This dielectric shimming approach with novel materials offers the opportunity to improve clinical spine image quality on MR systems that are not equipped with multi-transmit hardware. The developed approach is also compared with RF shimming in terms of image quality and power requirements.

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