Measuring method of spatially resolved frequency selective images
    3.
    发明授权
    Measuring method of spatially resolved frequency selective images 有权
    空间分辨率频率选择图像的测量方法

    公开(公告)号:US07167003B2

    公开(公告)日:2007-01-23

    申请号:US11213585

    申请日:2005-08-26

    IPC分类号: G01V3/00

    CPC分类号: G01R33/4833 G01R33/5613

    摘要: The present invention describes a magnetic resonance imaging method wherein spatially resolved frequency sensitive image data are collected by means of free precession sequences employing very small radio frequency (RF) excitation pulses per unit time which result in highly frequency selective steady-state signals dominated by linear properties of the system, for which the superposition principle holds. By appropriate linear combination of steady state signals of N different frequencies, N resonance lines can be acquired simultaneously. This method allows spectroscopic recordings with very low RF power deposition which renders the method suitable for applications at high static magnetic field strengths.

    摘要翻译: 本发明描述了一种磁共振成像方法,其中通过使用每单位时间非常小的射频(RF)激励脉冲的自由进动序列来收集空间分辨的频率敏感图像数据,其导致以线性为主的高频率选择性稳态信号 系统的属性,叠加原则成立。 通过N个不同频率的稳态信号的适当线性组合,可以同时获取N个谐振线。 该方法允许具有非常低的RF功率沉积的分光记录,这使得该方法适合于高静态磁场强度的应用。