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Abstract #2814

Filter Implementation into a 2D Radial Trajectory for Sodium MRI

Simon Konstandin1, Armin Michael Nagel2, Patrick Michael Heiler1, Lothar Rudi Schad1

1Computer Assisted Clinical Medicine, Heidelberg University, Mannheim, Germany; 2Medical Physics in Radiology, German Cancer Research Center, Heidelberg, Germany

Large voxel sizes (>30mm3) are required for sodium imaging due to its low sensitivity that can result in Gibbs ringing if no filter is used. In this work, a Hamming filter was implemented into a 2D radial trajectory and compared to imaging with a post-filter and without filtering. The absence of Gibbs ringing and an SNR increase of 60% for sodium heart imaging are clearly visible for the filtered images. In conclusion, the use of an implemented filter in the trajectory will improve the SNR and the shape of the PSF.