Magnetic Resonance Imaging (MRI) Using Ultra Short Echo Times and Spiral Sampling in K-Space
    2.
    发明申请
    Magnetic Resonance Imaging (MRI) Using Ultra Short Echo Times and Spiral Sampling in K-Space 有权
    磁共振成像(MRI)使用超短回波时间和螺旋采样在K空间

    公开(公告)号:US20070255129A1

    公开(公告)日:2007-11-01

    申请号:US11735381

    申请日:2007-04-13

    IPC分类号: A61B5/05

    摘要: Methods, systems and computer program products of magnetic resonance imaging (MRI) using ultra short echo times and spiral sampling in k-space are disclosed. A long inversion radio frequency (RF) pulse that inverts magnetization of long T2 components are applied to a sample that exhibits long transverse relaxation time (T2) components and short T2 components to minimize signals corresponding to the long T2 components. In addition, half RF excitation pulses are applied to the sample to select one or more echo times. Data corresponding to the selected one or more echo times are acquired using a spiral trajectory, and a first echo image is obtained based on the acquired data.

    摘要翻译: 公开了使用超短回波时间和k空间螺旋采样的磁共振成像(MRI)的方法,系统和计算机程序产品。 将长T 2分量的磁化反转的长反转射频(RF)脉冲施加到展现长横向弛豫时间(T 2)分量和短T 2分量的样本,以使对应于长T 2分量的信号最小化。 另外,半个RF激励脉冲被施加到样本以选择一个或多个回波时间。 使用螺旋轨迹获取与所选择的一个或多个回波时间相对应的数据,并且基于获取的数据获得第一回波图像。