比较 Silent Navigator 波形生成方法。
Comparison of Silent Navigator Waveform Generation Methods.
机构信息
Global MR Applications and Workflow, GE Healthcare Japan.
Office of Radiation Technology, Keio University Hospital.
出版信息
Magn Reson Med Sci. 2020 May 1;19(2):154-158. doi: 10.2463/mrms.tn.2018-0168. Epub 2019 May 30.
Abstract
The silent navigator technique utilizes a non-selective excitation and an appropriate respiratory waveform generation method is necessary for an accurate motion detection. We compared three methods for silent navigator waveform generation. The profile generation method with coil selection (prof-selection) resulted in a high cross correlation with bellows signals and a large respiration amplitude. The prof-selection method should be used for silent navigator waveform generation.
摘要
静默导航技术利用非选择性激发，因此需要采用适当的呼吸波形生成方法来实现精确的运动检测。我们比较了三种静默导航波形生成方法。采用线圈选择的廓线生成方法（prof-selection）与风箱信号具有较高的互相关系数，且呼吸幅度较大。因此，prof-selection 方法应被用于静默导航波形生成。
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