Title: Echo Planar Imaging at 7T with 3rd Order Slice-Wise Dynamic Shim Update (DSU) and Full Eddy-Current Compensation (ECC)
Abstract: Figure 3: EPIs of three slices of two volunteers’ brains acquired with a FM shim (2nd column) and a dynamic updated shim (4th column) with reduced shim strengths. Additionally an T1 weighted FFE anatomic reference image (1st column) and an EPI acquired with a slice-wise (sw) static shim (3rd column) of the respective slices are shown for comparison. Figure 2: (a) Spatio-temporal B field evolution of the Y (red), X-Y (green) and X shim terms (blue), for a 15 slice EPI scan with shim sets as used for volunteer 1 (b) X-Y shim stabilizes after a major shim step in 2ms. Data is scaled to Hz/m, where s = shim order Echo Planar Imaging at 7T with 3rd Order Slice-Wise Dynamic Shim Update (DSU) and Full Eddy-Current Compensation (ECC) Ariane Fillmer, Signe Johanna Vannesjo, Matteo Pavan, Klaas Paul Pruessmann, Peter Boesiger, and Anke Henning Institute for Biomedical Engineering, University and ETH Zurich, Zurich, ZH, Switzerland
Publication Year: 2012
Publication Date: 2012-05-01
Language: en
Type: article
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Cited By Count: 1
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