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16 条记录 (耗时 0.017 秒)

    Coupled Axial and Lateral Displacement Estimation for Elasticity Imaging
    1.
    发明申请
    Coupled Axial and Lateral Displacement Estimation for Elasticity Imaging 有权
    弹性成像的耦合轴向和横向位移估计

    公开(公告)号：US20120095333A1

    公开(公告)日：2012-04-19

    申请号：US12903748

    申请日：2010-10-13

    申请人： Jingfeng Jiang ,  Timothy J. Hall

    发明人： Jingfeng Jiang ,  Timothy J. Hall

    IPC分类号： A61B8/00

    CPC分类号： A61B8/485 ,  A61B5/0053 ,  A61B8/5207 ,  G01S7/52042 ,  G01S15/8993

    摘要： The determination of axial and lateral displacement in a material subject to compression is determined by fitting a multi-dimensional model function to the match between corresponding portions of the material in two states of compression. In one embodiment, iso-contour lines in a correlation between a reference kernel and a target kernel are fit to an ellipse whose center defines the maximum correlation and hence the displacement.

    摘要翻译： 通过将多维模型函数拟合为在两种压缩状态下的材料的相应部分之间的匹配来确定经受压缩的材料中的轴向和横向位移的确定。 在一个实施例中，参考内核和目标内核之间的相关性中的等高线拟合到其中心定义最大相关性并因此适应位移的椭圆。

    Ultrasonic strain imaging device with selectable cost-function
    3.
    发明授权
    Ultrasonic strain imaging device with selectable cost-function 有权
    超声波应变成像装置具有可选成本功能

    公开(公告)号：US09078592B2

    公开(公告)日：2015-07-14

    申请号：US12258532

    申请日：2008-10-27

    申请人： Jingfeng Jiang ,  Timothy J. Hall

    发明人： Jingfeng Jiang ,  Timothy J. Hall

    IPC分类号： A61B8/00 ,  A61B8/08

    CPC分类号： A61B8/08 ,  A61B8/485

    摘要： An elasticity measuring system determines tissue displacement between a pre-deformation and post-deformation image by a matching process using a cost function accepting as its arguments continuity of the tissue motion and correlation of the tissue in making the block matching. The invention allows the selection among different cost functions for different imaging situations or tissue types, to provide improved displacement calculations using a priori knowledge about the tissue and structure of tissue interfaces or information derived during the scanning process.

    摘要翻译： 弹性测量系统通过匹配过程使用成本函数来确定预变形和变形后图像之间的组织位移，该成本函数接受组织运动的连续性和组织运动的相关性。 本发明允许针对不同成像情况或组织类型对不同成本函数进行选择，以使用关于组织界面的组织和结构或扫描过程中导出的信息的先验知识提供改进的位移计算。

    Coupled axial and lateral displacement estimation for elasticity imaging
    5.
    发明授权
    Coupled axial and lateral displacement estimation for elasticity imaging 有权
    用于弹性成像的耦合轴向和横向位移估计

    公开(公告)号：US08920323B2

    公开(公告)日：2014-12-30

    申请号：US12903748

    申请日：2010-10-13

    申请人： Jingfeng Jiang ,  Timothy J. Hall

    发明人： Jingfeng Jiang ,  Timothy J. Hall

    IPC分类号： A61B8/00 ,  A61B8/08 ,  A61B5/00 ,  G01S15/89 ,  G01S7/52

    CPC分类号： A61B8/485 ,  A61B5/0053 ,  A61B8/5207 ,  G01S7/52042 ,  G01S15/8993

    摘要： The determination of axial and lateral displacement in a material subject to compression is determined by fitting a multi-dimensional model function to the match between corresponding portions of the material in two states of compression. In one embodiment, iso-contour lines in a correlation between a reference kernel and a target kernel are fit to an ellipse whose center defines the maximum correlation and hence the displacement.

    摘要翻译： 通过将多维模型函数拟合为在两种压缩状态下的材料的相应部分之间的匹配来确定经受压缩的材料中的轴向和横向位移的确定。 在一个实施例中，参考内核和目标内核之间的相关性中的等高线拟合到其中心定义最大相关性并因此适应位移的椭圆。

    ULTRASONIC STRAIN IMAGING DEVICE WITH SELECTABLE COST-FUNCTION
    6.
    发明申请
    ULTRASONIC STRAIN IMAGING DEVICE WITH SELECTABLE COST-FUNCTION 有权
    具有可选择成本功能的超声应变成像装置

    公开(公告)号：US20100106018A1

    公开(公告)日：2010-04-29

    申请号：US12258532

    申请日：2008-10-27

    申请人： Jingfeng Jiang ,  Timothy J. Hall

    发明人： Jingfeng Jiang ,  Timothy J. Hall

    IPC分类号： A61B8/00

    CPC分类号： A61B8/08 ,  A61B8/485

    摘要： An elasticity measuring system determines tissue displacement between a pre-deformation and post-deformation image by a matching process using a cost function accepting as its arguments continuity of the tissue motion and correlation of the tissue in making the block matching. The invention allows the selection among different cost functions for different imaging situations or tissue types, to provide improved displacement calculations using a priori knowledge about the tissue and structure of tissue interfaces or information derived during the scanning process.

    摘要翻译： 弹性测量系统通过匹配过程使用成本函数来确定预变形和变形后图像之间的组织位移，该成本函数接受组织运动的连续性和组织运动的相关性。 本发明允许针对不同成像情况或组织类型对不同成本函数进行选择，以使用关于组织界面的组织和结构或扫描过程中导出的信息的先验知识提供改进的位移计算。

    Method for Assessing The Efficacy of a Flow-Diverting Medical Device in a Blood Vessel
    7.
    发明申请
    Method for Assessing The Efficacy of a Flow-Diverting Medical Device in a Blood Vessel 审中-公开
    评估流量分流医疗器械在血管中的功效的方法

    公开(公告)号：US20130066219A1

    公开(公告)日：2013-03-14

    申请号：US13229141

    申请日：2011-09-09

    申请人： Jingfeng Jiang ,  Charles Strother

    发明人： Jingfeng Jiang ,  Charles Strother

    IPC分类号： A61B5/026

    CPC分类号： A61B5/026 ,  A61B5/0037 ,  A61B5/02007

    摘要： A method for producing a computational flow dynamics model for assessing the efficacy of the deployment of a flow-diverting device in a blood vessel of a patient is provided. Image data of the patient is acquired with a medical imaging system, from which images depicting the blood vessel are reconstructed. A pre-treatment blood vessel model is generated by segmenting the reconstructed images. This pre-treatment blood vessel model is then used to generate a post-treatment, or post-deployment, model of the blood vessel. A post-deployment model of the flow-diverting device is generated and used together with the post-treatment blood vessel model to generate a computational flow dynamics model.

    摘要翻译： 提供了一种用于产生计算流动力学模型的方法，用于评估在患者的血管中部署流量转移装置的功效。 用医学成像系统获取患者的图像数据，重建描绘血管的图像。 通过分割重建图像产生预处理血管模型。 然后使用该预处理血管模型来产生血管的后处理或部署后模型。 产生流量转移装置的部署后模型并与后处理血管模型一起使用以产生计算流动动力学模型。