NON-CONTRAST MRI WITH DIFFERENTIATION OF ISCHEMIC, INFARCT AND NORMAL TISSUE
    1.
    发明申请
    NON-CONTRAST MRI WITH DIFFERENTIATION OF ISCHEMIC, INFARCT AND NORMAL TISSUE 有权
    非对照MRI与异位,无创和正常组织差异

    公开(公告)号:US20150216429A1

    公开(公告)日:2015-08-06

    申请号:US14689261

    申请日:2015-04-17

    IPC分类号: A61B5/026 A61B5/055

    摘要: Elicited MRI signals are processed into MR image data in conjunction (a) with use of an initial spatially-selective RF tag pulse (tag-on) and (b) without use of an initial spatially-selective NMR RF tag pulse (tag-off) in respectively corresponding data acquisition subsequences. Multi-dimensional tag-on and tag-off data acquisition subsequences are used for each of plural time-to-inversion (TI) intervals without using an injected contrast agent. Acquired image data sets are subtracted for each TI interval to produce difference values as a function of time representing blood perfusion for the ROI that differentiates between normal, ischemic and infarct tissues.

    摘要翻译: 使用初始空间选择性RF标签脉冲(标签打开)和(b)不使用初始空间选择性NMR RF标签脉冲(标签关闭)将引发的MRI信号结合(a)处理成MR图像数据 )分别对应的数据采集子序列。 在不使用注入的造影剂的情况下,对多个时间 - 反转(TI)间隔中的每一个使用多维标记和标记数据采集子序列。 对每个TI间隔减去获取的图像数据集,以产生差异值作为时间的函数,代表对正常,缺血和梗死组织进行区分的ROI的血液灌注。

    EFFICIENT MULTI-STATION MRI
    3.
    发明申请
    EFFICIENT MULTI-STATION MRI 有权
    有效的多站MRI

    公开(公告)号:US20130225976A1

    公开(公告)日:2013-08-29

    申请号:US13857231

    申请日:2013-04-05

    IPC分类号: G01R33/567

    摘要: A magnetic resonance imaging (MRI) system includes at least one controller configured to first acquire at least MRI locator image data for different portions of patient anatomy at each of different imaging stations for a defined multi-station locator sequence. An operator may interface with a respectively corresponding displayed locator image for each imaging station to set diagnostic scan sequence parameters for subsequent diagnostic MRI scans of corresponding portions of patient anatomy. Diagnostic MRI scan data is automatically acquired at each of the imaging stations in a multi-station diagnostic scan sequence that, if desired, can be seamlessly continued without operator interruption once begun.

    摘要翻译: 磁共振成像(MRI)系统包括至少一个控制器,其被配置为针对定义的多站定位器序列,首先在每个不同成像站处首先获取用于患者解剖结构的不同部分的至少MRI定位器图像数据。 操作者可以与每个成像站的分别对应的显示的定位器图像接口,以设置诊断扫描序列参数,以用于患者解剖结构对应部分的后续诊断MRI扫描。 诊断MRI扫描数据在多站诊断扫描序列中的每个成像站处被自动获取,如果需要,可以无缝地继续,而无需操作员中断一旦开始。