NON-CONTRAST DYNAMIC MRI MYOCARDIAL PERFUSION ANALYSIS AND VISUALIZATION
    1.
    发明申请
    NON-CONTRAST DYNAMIC MRI MYOCARDIAL PERFUSION ANALYSIS AND VISUALIZATION 审中-公开
    非对照动态MRI心肌灌注分析和可视化

    公开(公告)号:US20140081125A1

    公开(公告)日:2014-03-20

    申请号:US13618001

    申请日:2012-09-14

    IPC分类号: A61B5/055

    摘要: Black blood time to inversion (BBTI) tag-on and tag-off images acquired by magnetic resonance imaging (MRI) are analyzed to produce difference magnitude 3D images as a function of time (BBTI values) representing blood perfusion in a region of interest (ROI). Perfusion data of the ROI having values which are different for normal and abnormal myocardial tissues are displayed for plural slices of a 3D image and for plural BBTI values in a single display panel.

    摘要翻译: 分析通过磁共振成像(MRI)获得的黑血时间反转(BBTI)标记和标记图像,以产生表示感兴趣区域中血液灌注的时间(BBTI值)的函数的差值3D图像( 投资回报率)。 针对正常和异常心肌组织不同的值的ROI的灌注数据被显示用于3D图像的多个切片,并且在单个显示面板中显示多个BBTI值。

    ENHANCED FAT SATURATION IN MYOCARDIAL INFARCTION MRI
    2.
    发明申请
    ENHANCED FAT SATURATION IN MYOCARDIAL INFARCTION MRI 有权
    心肌梗死MRI增强脂肪饱和度

    公开(公告)号:US20140062474A1

    公开(公告)日:2014-03-06

    申请号:US13598435

    申请日:2012-08-29

    IPC分类号: G01R33/56 G01R33/34

    摘要: MRI k-space data is acquired for a patient ROI during data acquisition sequences including a nuclear magnetic resonance (NMR) signal readout period using a late gadolinium enhanced (LGE) data acquisition sequence including at least one fat-specific RF NMR magnetization inversion pulse imposed (a) after a water-specific RF NMR magnetization inversion pulse timed to cause a substantial null in NMR magnetization of normal tissue protons near a center of the readout period and (b) before the readout period center, which fat-specific inversion pulse is also timed to cause a substantial null in NMR magnetization of fat tissue protons near the readout period center. The acquired MR image data is reconstructed into a contrast enhanced LGE image of tissues within the ROI but having substantially suppressed normal and fat components therein.

    摘要翻译: 在包括使用晚期钆增强(LGE)数据采集序列的核磁共振(NMR)信号读出周期的数据采集序列的数据采集序列期间获取MRI k空间数据,其包括至少一个脂肪特异性RF NMR磁化反转脉冲 (a)在水特异性RF核磁共振磁化反转脉冲之后,定时地使读出周期中心附近的正常组织质子的NMR磁化大致为零,和(b)在读出周期中心之前,脂肪特异性反转脉冲 也定时导致在读出周期中心附近的脂肪组织质子的NMR磁化中基本上为零。 所获取的MR图像数据被重建成ROI内的组织的对比度增强的LGE图像,但是基本上抑制了其中的正常和脂肪成分。