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Abstract #3965

3D TWIRL: A Novel K-Space Trajectory for Imaging of Fast Relaxing Nuclei

Sandro Romanzetti1, Daniel P. Fiege2, Nadim Jon Shah2, 3

1Institute of Neuroscience and Medicine - 4, Forschungszentrum Jlich, Jlich, Germany; 2Institute of Neuroscience and Medicine - 4, Forschungszentrum Jlich, Jlich, Germany; 3JARA - Faculty of Medicine, RWTH Aachen University, Aachen, Germany

In this work we present a novel centric 3D sequence called 3DTWIRL. This sequence is based on Twisted Projection Imaging (TPI) technique and as such it combines the ultra-short echo time capability of projection imaging (PI) with a constant sampling density of k-space. The new method, however, requires the calculation of only the innermost TPI cone. The k-space is then sampled by rotating this cone by the appropriate polar and azimuthal angles. Initial results show that the 3DTWIRL sequence has a reduce sensitivity to off-resonances and ease of implementation.

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Keywords

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