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    • 2. 发明申请
    • METHOD AND APPARATUS FOR MAGNETIC RESONANCE IMAGING
    • 用于磁共振成像的方法和装置
    • US20130088228A1
    • 2013-04-11
    • US13649326
    • 2012-10-11
    • Thorsten FeiweierBernd Kuehn
    • Thorsten FeiweierBernd Kuehn
    • G01R33/56G01R33/38
    • G01R33/4838G01R33/5607
    • In a method and apparatus for magnetic resonance (MR) imaging, a magnetization of nuclear spins in a subject is prepared in multiple preparation modules of an acquisition sequence. MR signals are acquired with at least one imaging module of the sequence. Spoiler gradient fields are generated in the multiple preparation modules in order to affect a transverse magnetization of the spins. The spoiler gradient fields that are applied in at least two different preparation modules are spatially varied along different directions. Spoiler gradient moments of the spoiler gradient fields are selected so that, for at least one of three orthogonal spatial directions, a weighted sum of the spoiler gradient moments that are applied along this spatial direction satisfies a threshold condition.
    • 在用于磁共振(MR)成像的方法和装置中,在采集序列的多个准备模块中制备受试者的核自旋的磁化。 使用该序列的至少一个成像模块来获取MR信号。 扰流器梯度场在多个准备模块中产生,以影响自旋的横向磁化。 应用于至少两个不同准备模块的扰流板梯度场在不同方向上空间变化。 选择扰流板梯度场的扰流器梯度矩,使得对于三个正交空间方向中的至少一个,沿着该空间方向施加的扰流器梯度力矩的加权和满足阈值条件。
    • 5. 发明授权
    • Method and apparatus for acquisition of magnetic resonance data
    • 用于获取磁共振数据的方法和装置
    • US07622923B2
    • 2009-11-24
    • US12188344
    • 2008-08-08
    • Christian GeppertBernd Kuehn
    • Christian GeppertBernd Kuehn
    • G01V3/00
    • G01R33/4822G01R33/4818G01R33/4828G01R33/5601G01R33/5607
    • In a magnetic resonance method and apparatus for acquisition of measurement data from a subject, k-space to be scanned into an inner region and an outer region, and the inner region is divided into inner segments that differ in terms of their distance from a k-space center and the outer region is divided into outer segments that differ in terms of their distance from a k-space center. First k-space data are acquired for the inner region, wherein k-space lines of the inner region are divided into first groups such that k-space lines from different inner segments are associated in each of the first groups, and the first groups are successively scanned. Second k-space data are acquired for the outer region, wherein k-space lines of the outer region are divided into second groups such that k-space lines from different outer segments are associated in each of the second groups, and the second groups are successively scanned.
    • 在用于从被摄体获取测量数据的磁共振方法和装置中,要扫描到内部区域和外部区域的k空间,并且内部区域被划分为与其距离k的距离不同的内部区段 - 空间中心和外部区域被划分成与k空间中心的距离不同的外部段。 对于内部区域获取第一k空间数据,其中内部区域的k空间线被划分为第一组,使得来自不同内部段的k空间线在每个第一组中相关联,并且第一组是 连续扫描。 对于外部区域获取第二k空间数据,其中外部区域的k空间线被划分成第二组,使得来自不同外部段的k空间线在每个第二组中相关联,并且第二组是 连续扫描。
    • 10. 发明申请
    • METHOD AND APPARATUS FOR ACQUISITION OF MAGNETIC RESONANCE DATA
    • 用于获取磁共振数据的方法和装置
    • US20090039885A1
    • 2009-02-12
    • US12188344
    • 2008-08-08
    • Christian GeppertBernd Kuehn
    • Christian GeppertBernd Kuehn
    • G01R33/44
    • G01R33/4822G01R33/4818G01R33/4828G01R33/5601G01R33/5607
    • In a magnetic resonance method and apparatus for acquisition of measurement data from a subject, k-space to be scanned into an inner region and an outer region, and the inner region is divided into inner segments that differ in terms of their distance from a k-space center and the outer region is divided into outer segments that differ in terms of their distance from a k-space center. First k-space data are acquired for the inner region, wherein k-space lines of the inner region are divided into first groups such that k-space lines from different inner segments are associated in each of the first groups, and the first groups are successively scanned. Second k-space data are acquired for the outer region, wherein k-space lines of the outer region are divided into second groups such that k-space lines from different outer segments are associated in each of the second groups, and the second groups are successively scanned.
    • 在用于从被摄体获取测量数据的磁共振方法和装置中,要扫描到内部区域和外部区域的k空间,并且内部区域被划分为与其距离k的距离不同的内部区段 - 空间中心和外部区域被划分成与k空间中心的距离不同的外部段。 对于内部区域获取第一k空间数据,其中内部区域的k空间线被划分为第一组,使得来自不同内部段的k空间线在每个第一组中相关联,并且第一组是 连续扫描。 对于外部区域获取第二k空间数据,其中外部区域的k空间线被划分成第二组,使得来自不同外部段的k空间线在每个第二组中相关联,并且第二组是 连续扫描。