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Abstract #1625

Dynamic Slice-Optimized Shimming in Continuous Moving bed MRI

Saikat Sengupta 1,2 , David Smith 1,2 , and E. Brian Welch 1,2

1 Radiology and Radiological Sciences, Vanderbilt University, Nashville, TN, United States, 2 Vanderbilt University Institute of Imaging Science, Vanderbilt University, Nashville, TN, United States

Continuous moving bed MRI (COMBI) is a high throughput imaging technique for rapid whole-body examination. A primary limitation of COMBI is that the frequency and B0 shims are typically optimized for only one body location. As a result, image quality and parameter quantification suffers from field variations along the extent of the body. In this abstract, we present slice-specific zeroth and first order dynamic B0 shimming in COMBI. Slice-optimized shimming is demonstrated on a 1.500 meter field of view phantom setup with significant field homogeneity gains throughout the full field of view over a static single station shim.

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