首页>
外国专利>
SYSTEM AND METHOD FOR CONTROLLING UNDESIRED MAGNETIC FIELD EFFECTS IN MAGNETIC RESONANCE IMAGING
SYSTEM AND METHOD FOR CONTROLLING UNDESIRED MAGNETIC FIELD EFFECTS IN MAGNETIC RESONANCE IMAGING
展开▼
机译:控制磁共振成像中不需要的磁场效应的系统和方法
展开▼
页面导航
摘要
著录项
相似文献
摘要
A system and method are provided for determining a spatial distribution of susceptibility in a subject using a magnetic resonance imaging (MRI) system. The method includes directing the MRI system to acquire imaging data from an imaging volume within a subject, wherein the imaging volume is subject to both background fields (BB) originating outside the imaging volume and local fields (BL) originating from tissue within the imaging volume. The method also includes selecting a size and non-central compute point for an extended Poisson kernel to be applied to the imaging data, subtracting from a delta function to control the background fields (BB) but not the local fields (BL), and producing a susceptibility report attributable to the local fields (BL).
展开▼
机译:提供了一种用于使用磁共振成像(MRI)系统确定对象中药敏性的空间分布的系统和方法。该方法包括引导MRI系统从受检者体内的成像体积中获取成像数据,其中该成像体积受到源自成像体积外部的背景场(B B Sub>)和局部场(B)的影响。 L Sub>)源自成像体积内的组织。该方法还包括选择要应用于成像数据的扩展Poisson核的大小和非中心计算点,从增量函数中减去以控制背景场(B B Sub>),但不包括本地字段(B L Sub>),并生成可归因于本地字段(B L Sub>)的敏感性报告。
展开▼