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Abstract #0955

High-Resolution Single-Shot Spiral Imaging using Magnetic Field Monitoring and its Application to Diffusion Weighted MRI

Bertram J. Wilm 1,2 , Christoph Barmet 1,2 , Simon Gross 1 , Lars Kasper 1 , Johanna Vannesjo 1 , Maximilian Haeberlin 1 , Benjamin Dietrich 1 , David Brunner 1 , Thomas Schmid 1 , and Klaas P. Pruessmann 1

1 Institute for Biomedical Engineering, University & ETH, Zurich, Zurich, Switzerland, 2 Skope Magnetic Resonance Technologies, Zurich, Zurich, Switzerland

Despite its great potential, single-shot spiral MRI is so far not used in clinical practice due to its sensitivity to any encoding deficiencies. We address this problem by applying magnetic field monitoring and demonstrate the benefit for high resolution diffusion imaging. The accurate and consistent encoding information retrieved from magnetic field monitoring data resulted in a strongly improved image quality and achieves image congruence among DW data without image co-registration. The high SNR efficiency and the motion robustness make this sequence ideal for its use for diffusion imaging in clinical practice and research.

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