Meeting Banner
Abstract #4205

B0 shimming for X-nuclei imaging at 7 T using 23Na B0 maps

Lena V. Gast1, Anke Henning2, Bernhard Hensel3, Michael Uder1, and Armin M. Nagel1,4

1Institute of Radiology, University Hospital Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Erlangen, Germany, 2Max Planck Institute for Biological Cybernetics, Tübingen, Germany, 3Center for Medical Physics and Engineering, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Erlangen, Germany, 4Division of Medical Physics in Radiology, German Cancer Research Center (DKFZ), Heidelberg, Germany

B0 inhomogeneities are a major challenge at ultra-high magnetic field strengths (B0 ≥ 7 T), as they can lead to strong image artifacts. In this work, a B0 shimming routine that is based on 23Na B0 maps was implemented for applications in X-nuclei imaging where no 1H MRI data can be acquired and therefore, no vendor-provided shimming routines can be used. The proposed 23Na ConsTru shimming routine showed an improvement in B0 homogeneity comparable to the vendor-provided GRE Brain shimming routine both in phantom and in vivo measurements using 23Na B0 map acquisition times less than 1 minute.

This abstract and the presentation materials are available to members only; a login is required.

Join Here