Ultra-low field nuclear magnetic resonance and magnetic resonance imaging to discriminate and identify materials
    1.
    发明授权
    Ultra-low field nuclear magnetic resonance and magnetic resonance imaging to discriminate and identify materials 有权
    超低磁场核磁共振和磁共振成像鉴别和识别材料

    公开(公告)号:US07688069B2

    公开(公告)日:2010-03-30

    申请号:US11804799

    申请日:2007-05-18

    IPC分类号: G01V3/00

    摘要: An ultra-low magnetic field NMR system can non-invasively examine containers. Database matching techniques can then identify hazardous materials within the containers. Ultra-low field NMR systems are ideal for this purpose because they do not require large powerful magnets and because they can examine materials enclosed in conductive shells such as lead shells. The NMR examination technique can be combined with ultra-low field NMR imaging, where an NMR image is obtained and analyzed to identify target volumes. Spatial sensitivity encoding can also be used to identify target volumes. After the target volumes are identified the NMR measurement technique can be used to identify their contents.

    摘要翻译: 超低磁场NMR系统可以非侵入性地检查容器。 数据库匹配技术可以识别容器内的危险物质。 超低磁场NMR系统是理想的,因为它们不需要大的强大磁体,并且因为它们可以检查封装在诸如铅壳的导电壳中的材料。 NMR检查技术可以与超低场NMR成像结合,其中获得NMR分析和分析NMR图像以鉴定目标体积。 空间灵敏度编码也可用于识别目标体积。 在确定目标体积后,可以使用NMR测量技术来识别其内容。

    Direct imaging of neural currents using ultra-low field magnetic resonance techniques
    2.
    发明授权
    Direct imaging of neural currents using ultra-low field magnetic resonance techniques 有权
    使用超低场磁共振技术直接成像神经电流

    公开(公告)号:US07573268B2

    公开(公告)日:2009-08-11

    申请号:US11678023

    申请日:2007-02-22

    IPC分类号: G01V3/00

    CPC分类号: A61B5/055

    摘要: Using resonant interactions to directly and tomographically image neural activity in the human brain using magnetic resonance imaging (MRI) techniques at ultra-low field (ULF), the present inventors have established an approach that is sensitive to magnetic field distributions local to the spin population in cortex at the Larmor frequency of the measurement field. Because the Larmor frequency can be readily manipulated (through varying Bm), one can also envision using ULF-DNI to image the frequency distribution of the local fields in cortex. Such information, taken together with simultaneous acquisition of MEG and ULF-NMR signals, enables non-invasive exploration of the correlation between local fields induced by neural activity in cortex and more ‘distant’ measures of brain activity such as MEG and EEG.

    摘要翻译: 本发明人利用超低场(ULF)中的磁共振成像(MRI)技术直接使用共振相互作用和层析成像对人脑中的神经活动图像,建立了对旋转群体局部的磁场分布敏感的方法 在皮质中的拉莫尔频率测量领域。 因为Larmor频率可以容易地被操纵(通过变化的Bm),也可以设想使用ULF-DNI对皮层中的局部场的频率分布进行成像。 这些信息与MEG和ULF-NMR信号的同时采集一起使得能够非侵入性地探索由皮层神经活动引起的局部区域与脑活动(例如MEG和EEG)的更远的“测量”之间的相关性。

    Ultra-low field nuclear magnetic resonance and magnetic resonance imaging to discriminate and identify materials
    3.
    发明申请
    Ultra-low field nuclear magnetic resonance and magnetic resonance imaging to discriminate and identify materials 有权
    超低磁场核磁共振和磁共振成像鉴别和识别材料

    公开(公告)号:US20080284433A1

    公开(公告)日:2008-11-20

    申请号:US11804799

    申请日:2007-05-18

    IPC分类号: G01N24/08

    摘要: An ultra-low magnetic field NMR system can non-invasively examine containers. Database matching techniques can then identify hazardous materials within the containers. Ultra-low field NMR systems are ideal for this purpose because they do not require large powerful magnets and because they can examine materials enclosed in conductive shells such as lead shells. The NMR examination technique can be combined with ultra-low field NMR imaging, where an NMR image is obtained and analyzed to identify target volumes. Spatial sensitivity encoding can also be used to identify target volumes. After the target volumes are identified the NMR measurement technique can be used to identify their contents.

    摘要翻译: 超低磁场NMR系统可以非侵入性地检查容器。 数据库匹配技术可以识别容器内的危险物质。 超低磁场NMR系统是理想的,因为它们不需要大的强大磁体,并且因为它们可以检查封装在诸如铅壳的导电壳中的材料。 NMR检查技术可以与超低场NMR成像相结合,其中获得和分析NMR图像以鉴定目标体积。 空间灵敏度编码也可用于识别目标体积。 在确定目标体积后,可以使用NMR测量技术来识别其内容。