发明名称 METHOD AND APPARATUS TO REDUCE IMAGE INTENSITY VARIATION DURING MR DATA ACQUISITION
摘要 The present invention provides a system and method of reducing image intensity variations during imaging acquisitions that utilize large encoding gradient pulses that are played out immediately before a center of k-space is sampled. The present invention includes an acquisition and sampling that implements a predetermined delay in sampling prior to sampling the center of k-space. The delay in sampling the center of k-space following sampling of a peripheral region of k-space maintains the steady state of the MR signal and reduces the image intensity variation caused by eddy current and gradient hystersis. As such, the intensity variations throughout k-space may be reduced substantially and brought closer to the intrinsic noise level of the data acquisition.
申请公布号 US2005007110(A1) 申请公布日期 2005.01.13
申请号 US20030604154 申请日期 2003.06.27
申请人 ZHOU YONG 发明人 ZHOU YONG
分类号 G01R33/565;(IPC1-7):G01V3/00 主分类号 G01R33/565
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