Magnetic Field Monitoring of Radial Trajectories

Research output: Chapter in Book/Report/Conference proceedingConference paper


Radial k-space trajectories are widely used in motion correction applications and for undersampled acquisitions given the repeated sampling of the centre of k-space. Radials are, however, prone to eddy currents and gradient delays effects. In this work, we analyze the miscentering of k-space using a 3rd order magnetic field camera, measuring k-space and quantifying gradient delays and eddy currents. Single slice, dual slice and cardiac cine images are acquired in-vivo and corrected using the measured trajectories reducing the level of artifacts. The method uses a single preparation scan to acquire k-space and can be used for any angular spoke distribution and level of undersampling.
Original languageEnglish
Title of host publicationElectronic Poster Session - Pulse Sequences and Reconstruction A
Subtitle of host publicationEndogenous Contrast Applications & B0 Field Correction
Number of pages1
Publication statusPublished - 2012

Publication series

NameProceedings of the annual meeting of ISMRM
ISSN (Electronic)1545-4428


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