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    • 2. 发明申请
    • SYSTEMS AND METHODS FOR SUSCEPTIBILITY TENSOR IMAGING
    • 用于易感性张量成像的系统和方法
    • WO2011139745A2
    • 2011-11-10
    • PCT/US2011/034086
    • 2011-04-27
    • LIU, Chunlei
    • LIU, Chunlei
    • A61B5/055
    • G01R33/54A61B5/0042A61B5/055G01R33/243G01R33/48G01R33/56383
    • The present disclosure provides a method and system for quantifying and making images of tissue anisotropy property based on magnetic resonance imaging (MRI). The systems and methods provided herein utilize orientation distribution of magnetic susceptibility to characterize magnetic susceptibility anisotropy (MSA) inside biological tissues. This MSA may be intrinsic property of the tissue or may be induced by the presence of external agents. In certain embodiments, the MSA is displayed as an orientation distribution function of susceptibility and/or may be described by mathematical quantities such as tensors (e.g., symmetric or asymmetric second order or higher order tensors) and spherical harmonics. In other embodiments, the MSA is characterized using a second order tensor named apparent susceptibility tensor (AST).
    • 本公开提供了用于基于磁共振成像(MRI)量化和制造组织各向异性性质的图像的方法和系统。 本文提供的系统和方法利用磁化率的取向分布来表征生物组织内的磁化率各向异性(MSA)。 这种MSA可能是组织的内在特性,或者可能是由外部因素引起的。 在某些实施例中,MSA被显示为磁化率的取向分布函数和/或可以通过诸如张量的数学量(例如,对称或不对称的二阶或更高阶张量)和球谐函数来描述。 在其他实施方案中,使用称为视敏感性张量(AST)的二阶张量来表征MSA。