Christoph Barmet1, Bertram Jakob Wilm1,
Lars Kasper1, Christian C. Ruff2, Klaas Enno Stephan2,3,
Klaas Paul Pruessmann1
1Institute for Biomedical
Engineering, University and ETH Zrich, Zurich, Switzerland; 2Laboratory
for Social & Neural Systems Research, University of Zurich, Zurich,
Switzerland; 3Wellcome Trust Centre for Neuroimaging, University
College of London, London, United Kingdom
In fMRI it is attractive to precisely know the spatio-temporal magnetic field evolution in the imaging volume during the scan. On the one hand, such knowledge can be taken into account for image reconstruction; on the other hand, it could be a useful means of subject surveillance and of monitoring the course of a study for retrospective analysis. Recent advances in field monitoring hardware and methods actually promise to offer such capability. The present work aims to explore this proposition, using recent concurrent magnetic monitoring technology.