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    • 2. 发明申请
    • A METHOD AND A DEVICE FOR IMAGING A VISCO-ELASTIC MEDIUM
    • 用于成像VISCO-ELASTIC MEDIUM的方法和装置
    • WO2007110375A1
    • 2007-10-04
    • PCT/EP2007/052767
    • 2007-03-22
    • SUPER SONIC IMAGINEBERCOFF, JérémySAVERY, DavidCOHEN-BACRIE, ClaudeSOUQUET, Jacques
    • BERCOFF, JérémySAVERY, DavidCOHEN-BACRIE, ClaudeSOUQUET, Jacques
    • A61B8/08
    • G01S7/52036A61B5/0051A61B8/08A61B8/0825A61B8/0833A61B8/485A61N7/00G01S7/52042G01S15/8961G01S15/8977
    • The invention relates to a method and a device for imaging a visco-elastic medium (2). The method comprises an excitation step during which an internal mechanical stress is generated in an excitation zone [A] and an imaging step of acquiring signals during the movements generated by the mechanical stress in the visco-elastic medium (2) in response to the internal mechanical stress in an imaging zone [B] that includes the excitation zone [A]. According to the invention, the method further comprises a step of calculating a quantitative index [Cij] associated with the Theological properties of the visco-elastic medium (2) at at least one point [Bij] of the imaging zone situated at a given depth outside the excitation zone [A]. The quantitative index [Cij] is representative of a comparison between signals acquired during the movements generated in response to the mechanical stress at at least one point [Aij] of the excitation zone [A] situated at the given depth, and signals acquired during the movements generated in response to the mechanical stress at at least the point [Bij] of the imaging zone [B] situated outside the excitation zone [A].
    • 本发明涉及一种用于使粘弹性介质(2)成像的方法和装置。 该方法包括激发步骤,在激励步骤期间,在激发区域[A]中产生内部机械应力,以及成像步骤,其响应于内部的弹性介质(2)中的机械应力产生的运动期间获取信号 包括激发区[A]的成像区[B]中的机械应力。 根据本发明,该方法还包括在位于给定深度处的成像区域的至少一点[Bij]处计算与粘弹性介质(2)的神学性质相关联的定量指标[Cij]的步骤 激发区外[A]。 定量指标[Cij]代表响应于位于给定深度处的激发区[A]的至少一个点[Aij]处的机械应力产生的运动期间获取的信号之间的比较,以及在 响应于位于激发区[A]外的成像区[B]的至少点[Bij]处的机械应力产生的运动。