Apparatus and method for reconstructing an MR image
    1.
    发明授权
    Apparatus and method for reconstructing an MR image 有权
    用于重建MR图像的装置和方法

    公开(公告)号:US07952355B2

    公开(公告)日:2011-05-31

    申请号:US12362560

    申请日:2009-01-30

    IPC分类号: G01V3/00

    摘要: An MR imaging apparatus is disclosed, wherein the MR imaging apparatus includes a plurality of gradient coils positioned about a bore of a magnet, and an RF transceiver system controlled by a pulse module to transmit RF signals to an RF coil assembly. The MR imaging apparatus also includes a controller coupled to the plurality of gradient coils and the RF transceiver system and programmed to obtain MR image signals at different echo times from a subject containing metabolites having known characteristics. The controller is further programmed to reconstruct images of the metabolites in a selected region of interest (ROI) using a probabilistic mathematical expression based on known information regarding an image acquisition process and using a spatial distribution of the metabolites to account for artifacts in the images.

    摘要翻译: 公开了一种MR成像设备,其中MR成像设备包括围绕磁体的孔定位的多个梯度线圈和由脉冲模块控制的RF收发器系统,以将RF信号传输到RF线圈组件。 MR成像设备还包括耦合到多个梯度线圈和RF收发器系统的控制器,并被编程以从包含具有已知特征的代谢物的受试者获得不同回波时间的MR图像信号。 控制器还被编程为使用基于关于图像获取过程的已知信息的概率数学表达来重建所选择的感兴趣区域(ROI)中的代谢物的图像,并且使用代谢物的空间分布来解释图像中的伪影。

    System for producing high-resolution magnetic resonance images with a
short measurement time
    2.
    发明授权
    System for producing high-resolution magnetic resonance images with a short measurement time 失效
    用于生产具有短测量时间的高分辨率磁共振图像的系统

    公开(公告)号:US5646529A

    公开(公告)日:1997-07-08

    申请号:US424394

    申请日:1995-06-06

    摘要: A system produces high-resolution magnetic resonance (MR) images from the data measured by the magnetic resonance machine. The system extrapolates, using a method "ad hoc", a function of the measured data. This makes it possible to reduce the number of data measured, giving consequent reduction in the overall measurement time. Further, a special contrast measurement is used, which makes it possible to choose the image automatically from a group of possible candidates, consistent with the measured data.

    摘要翻译: PCT No.PCT / IT92 / 00076 Sec。 371日期:1995年6月6日 102(e)日期1995年6月6日PCT 1992年11月2日PCT PCT。 公开号WO94 / 10550 日期1994年5月11日系统由磁共振机测得的数据产生高分辨率磁共振(MR)图像。 系统使用“ad hoc”方法推断测量数据的功能。 这使得可以减少所测量的数据的数量,从而导致总的测量时间的减少。 此外,使用特殊的对比度测量,这使得可以根据测量的数据从一组可能的候选中自动选择图像。