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    PROCÉDÉ DE TRAITEMENT D'IMAGE POUR L'ESTIMATION D'UN RISQUE DE RUPTURE DE PLAQUE D'ATHÉROME
    1.
    发明公开
    PROCÉDÉ DE TRAITEMENT D'IMAGE POUR L'ESTIMATION D'UN RISQUE DE RUPTURE DE PLAQUE D'ATHÉROME 有权
    BILDVERARBEITUNGSVERFAHREN ZUMSCHÄTZENEINES RISIKOS VON ATHEROM-PLAQUE-BRUCH

    公开(公告)号：EP2361422A1

    公开(公告)日：2011-08-31

    申请号：EP09755918.1

    申请日：2009-11-23

    申请人： UNIVERSITE JOSEPH FOURIER (GRENOBLE 1) ,  CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE (CNRS)

    发明人： OHAYON, Jacques ,  LE FLOC'H, Simon ,  FINET, Gérard ,  TRACQUI, Philippe

    IPC分类号： G06T7/00

    CPC分类号： G06T7/0012 ,  G06T7/44 ,  G06T2207/30101

    摘要： The invention relates to an image processing method for estimating a risk of atheroma plaque breakage, that includes the step of receiving (40) a so-called elastogram image representing the inner deformation resulting from the compression of an analysed blood vessel tissue based on blood pressure, the step of pre-segmenting (50) the elastogram in order to obtain a pre-segmented image including a plurality of areas, and the step of calculating an elasticity image (60) representing the elasticity of at least one region of the elastogram, the region corresponding to an area selected among the plurality of areas of the pre-segmented image, and the elasticity image enabling the user to estimate the risk of atheroma plaque breakage, wherein said method is characterised in that: the pre-segmentation is carried out while considering the tissue as being a non-compressible elastic solid in order to determine the Young modulus gradient as equal to the sum of the Lagrange multiplier gradient and of a space depending vector, and in that the pre-segmentation includes determining the outlines of each area in the plurality of areas using said space depending vector.

    摘要翻译： 本发明涉及一种用于估计动脉粥样硬化斑块破裂风险的图像处理方法，其包括以下步骤：接收（40）表示基于血压对分析的血管组织的压缩产生的内部变形的所谓弹性图像 ，为了获得包括多个区域的预分割图像，预先分割（50）弹性图形的步骤，以及计算表示弹性图形的至少一个区域的弹性的弹性图像（60）的步骤， 所述区域对应于在预分割图像的多个区域中选择的区域，以及弹性图像，其使得用户能够估计动脉粥样斑块破裂的风险，其中所述方法的特征在于：进行预分割 同时将组织视为不可压缩的弹性固体，以便确定杨氏模量梯度等于拉格朗日乘数梯度和o的和 f是空间依赖性矢量，并且所述预分割包括使用所述空间依赖矢量确定所述多个区域中的每个区域的轮廓。