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2. 发明申请

WO2012107370A1 AN IMAGING DEVICE WITH IMAGE ACQUISITION RATE OPTIMIZATION 审中-公开
标题翻译：具有图像获取速率优化的成像设备
公开(公告)号：WO2012107370A1
公开(公告)日：2012-08-16
申请号：PCT/EP2012/051900
申请日：2012-02-03
申请人： SUPER SONIC IMAGINE , NICOLAS, Jean-Marie , KOPP, Laurent , MOSCA, Frédéric , COHAN-BACRIE, Claude , FRASCHINI, Christophe
发明人： NICOLAS, Jean-Marie , KOPP, Laurent , MOSCA, Frédéric , COHAN-BACRIE, Claude , FRASCHINI, Christophe
IPC分类号： G01S15/89
CPC分类号： A61B8/5207 , A61B8/145 , A61B8/4483 , A61B8/469 , A61B8/485 , A61B8/54 , G01S15/8959 , G01S15/8977 , G01S15/8997
摘要： The invention relates to a method of acquiring high-resolution ultrasound images of a medium (M) using an array of N transducers (T1 to TN) using successive transmission matrices, characterized in that it comprises the steps of defining an area of interest (D1) in a preliminary image (ZI); determining inter-transducer correlation matrices corresponding to the area of interest (D1) and to the unwanted area; determining a characteristic matrix (MC) of the area of interest (D1) resulting from the product of the inverse of the inter-transducer correlation matrix of the unwanted area by the inter-transducer correlation matrix of the area of interest (D1); calculating the eigenvectors and values of the characteristic matrix (MC) of the area of interest (D1) to define a transmission matrix; adjusting a trade-off between the image acquisition rate and image quality in the area of interest (D1) in order to define a number K of eigenvectors for firing; multiplying a reception matrix constituted of the acquired signals completed by data set to zero corresponding to the firings not effected by the inverse of the transmission matrix to obtain a complete data set; reconstructing the high-resolution image corresponding to the area of interest (D1) as in synthetic aperture echographic imaging methods.
摘要翻译：本发明涉及使用连续的传输矩阵使用N个传感器（T1到TN）的阵列获取介质（M）的高分辨率超声图像的方法，其特征在于它包括以下步骤：定义感兴趣区域（D1 ）在初步图像（ZI）中; 确定与感兴趣区域（D1）对应的换能器间相关矩阵和不需要的区域; 由所述感兴趣区域的换能器间相关矩阵（D1）的不需要区域的换能器间相关矩阵的逆的乘积确定感兴趣区域（D1）的特征矩阵（MC）; 计算感兴趣区域（D1）的特征矩阵（MC）的特征向量和值，以定义传输矩阵; 调整图像获取率和感兴趣区域中的图像质量之间的折衷（D1），以便定义用于点火的特征向量的数量K; 将由数据集合完成的所获取的信号构成的接收矩阵与对应于不受传输矩阵的逆的发射相对应的零相乘以获得完整的数据集; 如合成孔径回波成像方法重建与感兴趣区域（D1）相对应的高分辨率图像。

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