Invention Grant
US09360545B2 Magnetic resonance system and operating method for flow artifact reduction in slab selective space imaging 有权
平板选择性空间成像中的磁共振系统和流动伪影减少的操作方法

Magnetic resonance system and operating method for flow artifact reduction in slab selective space imaging
Abstract:
In a SPACE (Sampling Perfection with Application optimized Contrasts using different flip angle Evolutions) or equivalent magnetic resonance imaging pulse sequence, the dephasing gradient is generated (activated) so as to occur immediately in front of the second refocusing pulse, thereby eliminating the long time duration that occurs in conventional SPACE or equivalent sequences between excitation and readout. This long time duration has been identified as a source for flow-related artifacts that occur in images reconstructed from data acquired according to conventional SPACE or equivalent sequences. By eliminating this long time duration, such flow-related artifacts are substantially reduced, if not eliminated.
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