Abstract #3198
Correction of Artifacts in Ultrahigh Field T 2 * Imaging Using a Training Model for Field Probe Based B 0 Measurements
Anders Garpebring 1,2 , Joep Wezel 1 , Vincent O. Boer 3 , Tijl A. van der Velden 3 , Andrew G. Webb 1 , Dennis W.J. Klomp 3 , and Matthias J. P. van Osch 1
1
C.J. Gorter center for high field MRI,
Radiology, Leiden University Medical Center, Leiden,
Netherlands,
2
Radiation
Sciences, Ume University, Ume, Sweden,
3
Radiology,
University Medical Center Utrecht, Utrecht, Netherlands
In ultrahigh field MRI B
0
fluctuations
caused by breathing can seriously degrade T
2
*
-weighted
images. The purpose of this work was to investigate if
field probes in combination with training data can be
used for correction of artifacts resulting from heavy
breathing. Results based on data from a 7 T scanner show
that it is possible to correct B
0
induced
artifacts and that the new method provided improvements
compared to the method normally used today.
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