Invention Application
US20160202335A1 SYSTEMS AND METHODS FOR REDUCED OFF-RESONANCE BLURRING IN SPIRAL IMAGING 有权
用于减少螺旋成像中的非共振辐射的系统和方法

SYSTEMS AND METHODS FOR REDUCED OFF-RESONANCE BLURRING IN SPIRAL IMAGING
Abstract:
Systems, methods of reducing off-resonance blurring in acquired magnetic resonance imaging data. The method includes acquiring a first set of spiral interleaf data for each of one or more spiral-in/out interleaves by performing a first sampling each of one or more locations in k-space along a first redundant spiral-in/out trajectory, and acquiring a second set of spiral interleaf data for each of the one or more spiral-in/out interleaves by performing a second sampling of each of the one or more locations in the k-space along a second redundant spiral-in/out trajectory, wherein the second redundant spiral-in/out trajectory corresponds to a time-reversed trajectory of the first redundant spiral-in/out trajectory. The method may yet further include combining the first set of spiral interleaf data and the second set of spiral interleaf data with an averaging operation such as to reduce artifacts.
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