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    • 10. 发明授权
    • Method and apparatus for performing diffusion spectrum imaging
    • 用于进行扩散光谱成像的方法和装置
    • US08922210B2
    • 2014-12-30
    • US13077517
    • 2011-03-31
    • Luca MarinelliKevin KingChristopher HardyMarion Menzel
    • Luca MarinelliKevin KingChristopher HardyMarion Menzel
    • G01V3/00G01R33/563G01R33/561
    • G01R33/56341G01R33/5611
    • A method of generating a magnetic resonance (MR) image of a tissue includes acquiring MR signals at undersampled q-space encoding locations for a plurality of q-space locations that is less than an entirety of the q-space locations sampled at the Nyquist rate, wherein the acquired signal at the q-space locations represents the three-dimensional displacement distribution of the spins in the imaging voxel, synthesizing the MR signal for the entirety of q-space encodings using a compressed sensing technique for a portion of q-space locations at which MR data was not acquired, combining the acquired MR signals at q-space encodings and the synthesized MR signals at q-space encodings to generate a set of MR signals at q-space encodings that are evenly distributed in q-space, using the set of MR signals at q-space encodings to generate a function that represents a displacement probability distribution function of the set of spins in the imaging voxel, and generating an image of the tissue based on at least a portion of the generated function. A system and computer readable medium are also described herein.
    • 生成组织的磁共振(MR)图像的方法包括:对于多个q空间位置的欠采样q空间编码位置获取低于以奈奎斯特速率采样的q空间位置的整体的MR信号 ,其中在q空间位置处获取的信号表示成像体素中的自旋的三维位移分布,使用用于q空间的一部分的压缩感测技术来合成用于整个q空间编码的MR信号 不获取MR数据的位置,以q空间编码的采集的MR信号和以q空间编码的合成的MR信号组合,以在均匀分布在q空间中的q空间编码处生成一组MR信号, 使用q空间编码的MR信号集合来生成表示成像体素中的旋转组的位移概率分布函数的函数,并且生成组织基底的图像 在生成的功能的至少一部分上进行编辑。 本文还描述了系统和计算机可读介质。