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    • 1. 发明申请
    • MRI PROPELLER WITH MOTION CORRECTION, WATER-FAT SEPARATION AND ESTIMATION OF MAGNETIC FIELD INHOMOGENEITY INFORMATION
    • 具有运动校正,水分离和磁场非均质信息估计的螺旋桨
    • WO2015132685A1
    • 2015-09-11
    • PCT/IB2015/051072
    • 2015-02-13
    • KONINKLIJKE PHILIPS N.V.DIGNITY HEALTH
    • SCHAR, MichaelEGGERS, HolgerPIPE, James Grant
    • G01R33/48G01R33/565
    • G01R33/4828G01R33/4824G01R33/5611G01R33/56509
    • A magnetic resonance (MR) imaging (MRI) system, the MRI system may include at least one controller which may be configured to: acquire MR information for at least first and second blades of a periodically rotated overlapping parallel lines with enhanced reconstruction (PROPELLER) imaging method; generate, for at least the first and second blades, main field inhomogeneity information based upon the acquired MR information, the main field inhomogeneity information indicating main field inhomogeneity; generate water and fat information individually for at least the first and second blades based upon the acquired MR information and the generated main field inhomogeneity information for the corresponding blade of the first and second blades; and correct at least one of the water and fat information for spatial distortions caused by the main field inhomogeneity or a predetermined chemical shift difference between water and fat.
    • 磁共振(MR)成像(MRI)系统中,MRI系统可以包括至少一个控制器,其可以被配置为:获得具有增强的重建(PROPELLER)的周期性旋转的重叠平行线的至少第一和第二刀片的MR信息, 成像方法; 基于所获取的MR信息,为至少第一和第二刀片生成主场不均匀性信息,主场不均匀性信息指示主场不均匀性; 基于获取的MR信息和生成的第一和第二叶片的相应叶片的主场不均匀性信息,分别产生至少第一和第二叶片的水和脂肪信息; 并且校正由主场不均匀性或水与脂肪之间的预定化学位移差引起的空间变形的水和脂肪信息中的至少一个。