Method And System For Vascular Elastography
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    发明申请
    Method And System For Vascular Elastography 审中-公开
    血管弹性成像方法与系统

    公开(公告)号:US20070282202A1

    公开(公告)日:2007-12-06

    申请号:US10588421

    申请日:2005-02-09

    IPC分类号: A61B8/00

    摘要: The method for vascular elastography comprises: i) obtaining a sequence of radio-frequency (RF) images including pre-tissue-motion and post-tissue-motion images in digital form of a vessel delimited by a vascular wall; the pre-tissue-motion and post-tissue-motion images being representative of first and second time-delayed configuration, of the whole vessel; ii) partitioning both the pre-tissue-motion and post-tissue-motion images within the vascular wall into corresponding data windows; approximating a trajectory between the pre- and post-tissue-motion for corresponding data windows; and using the trajectory for each data window to compute the full strain tensor in each data window, which allow determining the Von Mises coefficient. The method can be adapted for non-invasive vascular elastography (NIVE), for non-invasive vascular micro-elastography (MicroNIVE) on small vessels, and for endovascular elastography (EVE).

    摘要翻译: 用于血管弹性成像的方法包括:i)获得包括由血管壁限定的血管数字形式的组织前运动和组织后运动图像的射频(RF)图像序列; 组织运动和组织后运动图像代表整个血管的第一和第二时间延迟构型; ii)将血管壁内的组织前运动和组织后运动图像分成相应的数据窗口; 逼近相应数据窗口的组织前和组织运动之间的轨迹; 并且使用每个数据窗口的轨迹来计算每个数据窗口中的全应变张量,这允许确定Von Mises系数。 该方法可适用于非侵入性血管弹性成像(NIVE),用于小血管的非侵入性血管微弹性成像(MicroNIVE)和血管内弹性成像(EVE)。