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Abstract #2317

Robust diffusion-prepared neurography of the complete brachial plexus facilitated by an optimized shimming strategy.

Jos Oudeman 1 , Bram F Coolen 1 , Camiel Verhamme 2 , Mario Maas 1 , Andrew Webb 3 , Gustav J Strijkers 4 , and Aart J Nederveen 1

1 Radiology, Academic Medical Center, Amsterdam, Noord-Holland, Netherlands, 2 Neurology, Academic Medical Center, Amsterdam, Noord-Holland, Netherlands, 3 Radiology, Leiden University Medical Center, Leiden, Zuid-Holland, Netherlands, 4 Biomechanical engineering and physics, Academic Medical Center, Amsterdam, Noord-Holland, Netherlands

New imaging methods of the brachial plexus are believed to assist in diagnosis of immune mediated diseases. In this study, we optimized a 3D diffusion prepared iMSDE sequence to include the full brachial plexus and shoulders. Although giving excellent contrast of the nerves, poor fat-suppression and a poor signal to noise ratio due to B0 inhomogeneities are often a problem. To overcome this problem we tested the use of a neck pillow filled with pineapple juice. Secondly we compared image based shimming to volume shimming. The use of the pillow in combination with IB-shimming showed the best result.

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