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    • 1. 发明授权
    • Method and apparatus for quantitative myocardial assessment
    • 定量心肌评估方法与装置
    • US06994673B2
    • 2006-02-07
    • US10345580
    • 2003-01-16
    • Peter LysyanskyDan Rappaport
    • Peter LysyanskyDan Rappaport
    • A61B8/00
    • A61B8/485A61B8/08A61B8/0883G01S7/52036G01S7/52066G01S15/8979G06T7/246G06T2207/30048
    • Method and apparatus for assessing tissue motion and deformation is provided. Sequential frames of data representative of tissue are accessed. A region of interest is defined on a current frame of data, and first locations of a set of features within the region of interest is identified. Each feature in the set of features identifies a location within the tissue. Second locations of the set of features are located on a consecutive frame of data. Velocity vectors are calculated based on the first and second locations of the set of features, and a continuous spatial and temporal velocity distribution is reconstructed by fitting the velocity vectors. The region of interest is modified on the consecutive frame based on the velocity distribution to follow motion and deformation of the tissue.
    • 提供了评估组织运动和变形的方法和装置。 访问表示组织的连续数据帧。 在当前数据帧上定义感兴趣区域,并且识别感兴趣区域内的一组特征的第一位置。 该组特征中的每个特征识别组织内的位置。 该组特征的第二位置位于连续的数据帧上。 基于特征集合的第一和第二位置来计算速度矢量,并且通过拟合速度矢量来重建连续的空间和时间速度分布。 感兴趣区域基于速度分布在连续帧上修改以跟随组织的运动和变形。