Meeting Banner
Abstract #1390

k-t-Calibration improves continuous field monitoring for image reconstruction

Benjamin E. Dietrich 1 , Bertram J. Wilm 1 , David O. Brunner 1 , Yolanda Duerst 1 , Christoph Barmet 1,2 , and Klaas P. Pruessmann 1

1 Institut for Biomedical Engineering, University and ETH Zurich, Zurich, Zurich, Switzerland, 2 Skope Magnetic Resonance Technologies, Zurich, Switzerland

By means of NMR probe based magnetic field monitoring, the spatio-temporal magnetic field evolution and hence k-space trajectory can be observed and used to improve image reconstruction. Continuous field monitoring based on time interleaved acquisition of sets of fast relaxing probes enables sequence independent monitoring over arbitrary durations without limitations on k-space range, but suffered so far under accumulated errors in the calculated trajectories due to violations of the assumption that the probes behave like point sources. The presented k-space and time domain calibration method addresses these problems and enables continuous monitoring for image reconstruction.

This abstract and the presentation materials are available to members only; a login is required.

Join Here