公开(公告)号：US20090022381A1

公开(公告)日：2009-01-22

申请号：US12170465

申请日：2008-07-10

申请人： Sebastien Gorges ,  Yves Lucien Trousset ,  Jeremie Pescatore ,  Erwan Kerrien ,  Marie-Odile Berger

发明人： Sebastien Gorges ,  Yves Lucien Trousset ,  Jeremie Pescatore ,  Erwan Kerrien ,  Marie-Odile Berger

IPC分类号： G06K9/36

CPC分类号： A61B6/583 ,  A61B5/1127 ,  A61B6/4441 ,  A61B6/5235 ,  A61B6/547 ,  G06T7/33 ,  G06T7/38 ,  G06T2207/30101

摘要： A method for the correction of registration of radiography images comprises means to determine a residual rigid transformation in comparing the pre-operation 3D image with a fluoroscopic image. This residual transformation is determined according to a registration based on the content of the image. Once the residual transformation is computed, it is combined with a geometrical registration. The use of the geometrical registration in this combination enables the making of a real-time registration comprising the motion of the C-arm without any additional registration. And the use of the registration based on the content of the image enables the precision of said geometrical registration to be refined.

摘要翻译： 用于校正放射线照相图像的注册的方法包括在将术前3D图像与荧光透视图像进行比较时确定残余刚性变换的装置。 根据基于图像的内容的登记来确定该残差变换。 一旦计算了残差变换，就将其与几何配准结合起来。 在这种组合中使用几何配准使得能够进行包括C形臂的运动的实时记录而不进行任何额外的注册。 并且，基于图像的内容的登记的使用使得可以精简所述几何注册的精度。

公开(公告)号：US08180132B2

公开(公告)日：2012-05-15

申请号：US12170465

申请日：2008-07-10

申请人： Sebastien Gorges ,  Yves Lucien Trousset ,  Jeremie Pescatore ,  Erwan Kerrien ,  Marie-Odile Berger

发明人： Sebastien Gorges ,  Yves Lucien Trousset ,  Jeremie Pescatore ,  Erwan Kerrien ,  Marie-Odile Berger

IPC分类号： G06K9/00

CPC分类号： A61B6/583 ,  A61B5/1127 ,  A61B6/4441 ,  A61B6/5235 ,  A61B6/547 ,  G06T7/33 ,  G06T7/38 ,  G06T2207/30101

摘要： A system and method for correcting the registration of a 3D image and a 2D image acquired with medical imaging systems is disclosed. The system and method determines acquisition geometry of the imaging system by calculating an initial projection matrix associated with the 2D image. The system performs a projection of the 3D image using the initial projection matrix resulting in a 2D projection of the 3D image. The system registers the 2D projection of the 3D image and the 2D image. A new projection matrix is determined based on the registration of the 2D image and the 2D projection of the 3D image. The 3D image is then registered with the 2D image using the new projection matrix. An associated medical imaging system is disclosed. Method embodiments use previously acquired 3D images or images acquired using imaging modalities different than the one used to acquire the 2D image.

摘要翻译： 公开了一种用于校正用医学成像系统获取的3D图像和2D图像的配准的系统和方法。 该系统和方法通过计算与2D图像相关联的初始投影矩阵来确定成像系统的采集几何。 该系统使用导致3D图像的2D投影的初始投影矩阵来执行3D图像的投影。 系统注册3D图像和2D图像的2D投影。 基于2D图像的注册和3D图像的2D投影来确定新的投影矩阵。 然后使用新的投影矩阵将3D图像与2D图像一起登记。 公开了一种相关联的医学成像系统。 方法实施例使用先前获取的3D图像或使用与用于获取2D图像的成像模式不同的成像模式获取的图像。

公开(公告)号：US07559694B2

公开(公告)日：2009-07-14

申请号：US11293940

申请日：2005-12-05

申请人： Sébastien Gorges ,  Yves Lucien Trousset ,  Jérémie Pescatore ,  Erwan Kerrien ,  Marie-Odile Berger ,  Régis Vaillant

发明人： Sébastien Gorges ,  Yves Lucien Trousset ,  Jérémie Pescatore ,  Erwan Kerrien ,  Marie-Odile Berger ,  Régis Vaillant

IPC分类号： G01D18/00

CPC分类号： A61B6/584 ,  A61B6/4441 ,  A61B6/583 ,  G06T11/005

摘要： A method for determining acquisition geometry of an imaging system from a set of calibration matrices for an arbitrary position of the system, a projection matrix makes a point in a 2D image correspond to a point of an object in a space. This matrix is produced for any unspecified position of the system from knowledge of a limited number of pre-computed calibration matrices. For instance, a projection matrix may be computed by interpolating coefficients of calibration matrices and/or applying a transformation with a rigid model defined comprehensively or locally to a particular calibration matrix.

摘要翻译： 一种用于从系统的任意位置的一组校准矩阵确定成像系统的采集几何的方法，投影矩阵使2D图像中的点对应于空间中的对象的点。 根据有限数量的预先计算的校准矩阵的知识，对于该系统的任何未指定的位置产生该矩阵。 例如，投影矩阵可以通过内插校准矩阵的系数和/或应用具有全局或局部定义到特定校准矩阵的刚性模型来进行变换来计算。

公开(公告)号：US20080306378A1

公开(公告)日：2008-12-11

申请号：US12055120

申请日：2008-03-25

申请人： Yves Lucien Trousset ,  Jeremie Pescatore

发明人： Yves Lucien Trousset ,  Jeremie Pescatore

IPC分类号： A61B6/12

CPC分类号： A61B5/06 ,  A61B6/4441 ,  A61B6/481 ,  A61B6/504 ,  A61B6/5235 ,  A61B34/20 ,  A61B90/36 ,  A61B2034/2051 ,  A61B2090/364 ,  A61B2090/374 ,  A61B2090/376 ,  A61B2090/3958 ,  A61B2090/3975

摘要： A method for registering images acquired by at least one imaging system. The method includes:positioning at least a first sensor (S) interdependent on the imaging system; positioning at least a second sensor (P) so as to make it interdependent on the movements of an organ of a patient of which at least two images are taken; acquiring the positions of said sensors (S, P) during acquisitions of the images; and registering the images according to the positions of the sensors (S, P). A system for registering images acquired by at least one imaging system includes means for acquiring the position of at least a first sensor interdependent on the imaging system and of at least a second sensor interdependent on the movements of an organ of a patient of which two images are taken, the registration being performed according to the positions of the sensors at the moment when the images are acquired.

摘要翻译： 一种用于记录由至少一个成像系统获取的图像的方法。 该方法包括：至少定位与成像系统相互依赖的第一传感器（S）; 定位至少第二传感器（P），以使其相互依赖于至少采用两个图像的患者的器官的移动; 在获取图像期间获取所述传感器（S，P）的位置; 并根据传感器（S，P）的位置登记图像。 用于登记由至少一个成像系统获取的图像的系统包括用于获取至少第一传感器相对于成像系统和至少第二传感器的位置的装置，所述至少第二传感器相互依赖于患者的器官的运动，其中两个图像 根据获取图像时的传感器的位置进行登记。

公开(公告)号：US08182150B2

公开(公告)日：2012-05-22

申请号：US12704321

申请日：2010-02-11

申请人： Sebastien Gorges ,  Yves Lucien Trousset

发明人： Sebastien Gorges ,  Yves Lucien Trousset

IPC分类号： G01D18/00

CPC分类号： A61B6/4441 ,  A61B6/0457 ,  A61B6/584

摘要： A method of calibrating a mechanical model of behavior and movement of an interventional radiology table by moving the table over at least one degree of freedom, acquiring at least one set of images corresponding to different positions of the table and C-arm, obtaining at least one set of images of a test object from different positions, using the images of the test object to determine parameters of the mechanical model of table behavior and movement, and combining these parameters with data given by table movement sensors so as to deduce the true relative positions of the table with respect to the medical imaging system.

摘要翻译： 通过在至少一个自由度上移动所述表来校准介入放射学表的行为和运动的机械模型的方法，获取对应于所述表和C臂的不同位置的至少一组图像，至少获得 一组来自不同位置的测试对象的图像，使用测试对象的图像来确定表格行为和运动的机械模型的参数，并将这些参数与表移动传感器给出的数据相结合，以推导出真实相对 桌子相对于医学成像系统的位置。

公开(公告)号：US20100204562A1

公开(公告)日：2010-08-12

申请号：US12704321

申请日：2010-02-11

申请人： Sebastien Gorges ,  Yves Lucien Trousset

发明人： Sebastien Gorges ,  Yves Lucien Trousset

IPC分类号： A61B5/05 ,  G06F19/00

CPC分类号： A61B6/4441 ,  A61B6/0457 ,  A61B6/584

摘要： A method of calibrating a mechanical model of behaviour and movement of an interventional radiology table by moving the table over at least one degree of freedom, acquiring at least one set of images corresponding to different positions of the table and C-arm, obtaining at least one set of images of a test object from different positions, using the images of the test object to determine parameters of the mechanical model of table behaviour and movement, and combining these parameters with data given by table movement sensors so as to deduce the true relative positions of the table with respect to the medical imaging system.

摘要翻译： 通过在至少一个自由度上移动所述表来校准介入放射学表的行为和运动的机械模型的方法，获取对应于所述表和C臂的不同位置的至少一组图像，至少获得 一组来自不同位置的测试对象的图像，使用测试对象的图像来确定表格行为和运动的机械模型的参数，并将这些参数与表移动传感器给出的数据相结合，以推导出真实相对 桌子相对于医学成像系统的位置。

公开(公告)号：US08738344B2

公开(公告)日：2014-05-27

申请号：US13237535

申请日：2011-09-20

申请人： Eric Pichon ,  Michel F. Grimaud ,  Yves Lucien Trousset

发明人： Eric Pichon ,  Michel F. Grimaud ,  Yves Lucien Trousset

IPC分类号： A61B5/02

CPC分类号： G06T7/0012 ,  G06T7/149 ,  G06T2207/20161 ,  G06T2207/30101

摘要： A method for processing an image of a body region is provided, the region comprising a plurality of vessels capable of propagating a fluid of the body, the image comprising a plurality of pixels each being associated with an intensity. The method comprising determining, for each pixel, a probability that the pixel belongs to a vessel, based on the intensity of the pixel; simulating a propagation of the fluid from at least one source pixel towards the pixels of the image, the propagation being simulated to have a velocity that is function of the probability that the pixels of the image belong to a vessel; and inferring from the simulation a propagation time between the source pixel and each of the pixels of the image.

摘要翻译： 提供了一种用于处理身体区域的图像的方法，所述区域包括能够传播身体的流体的多个容器，所述图像包括多个像素，每个像素与强度相关联。 该方法包括基于像素的强度为每个像素确定像素属于血管的概率; 模拟流体从至少一个源像素向图像的像素的传播，所述传播被模拟为具有图像的像素属于容器的概率函数的速度; 并从模拟中推断源像素与图像的每个像素之间的传播时间。

公开(公告)号：US20120106708A1

公开(公告)日：2012-05-03

申请号：US13269785

申请日：2011-10-10

申请人： Yves Lucien Trousset ,  Bernard Bouvier

发明人： Yves Lucien Trousset ,  Bernard Bouvier

IPC分类号： H05G1/08

CPC分类号： A61B6/586 ,  A61B6/102 ,  A61B6/4441 ,  A61B6/547

摘要： The invention relates to a control process for a medical imaging device comprising an anti-collision unit, a source of X-rays, an image detector, a control unit for the source of X-rays and for the image detector. The process comprises determining at least one trajectory of the source of X-rays and of the image detector as a function of at least one previously fixed control parameter by means of the control unit, locating in space at least one object that may be on the at least one trajectory, and verifying that the at least one trajectory of the source of X-rays and the image detector will not risk a collision between the source of X-rays and the at least one object or the image detector and the at least one object.

摘要翻译： 本发明涉及一种医疗成像设备的控制过程，包括防冲突单元，X射线源，图像检测器，用于X射线源的控制单元和图像检测器。 该过程包括通过控制单元确定X射线源和图像检测器的至少一个轨迹作为至少一个先前固定的控制参数的函数，在空间中定位至少一个可能在 至少一个轨迹，并且验证X射线源和图像检测器的至少一个轨迹不会危及X射线源与至少一个物体或图像检测器之间的碰撞，并且至少 一个对象

公开(公告)号：US20090088629A1

公开(公告)日：2009-04-02

申请号：US11906445

申请日：2007-10-02

申请人： Daniel Eduardo Groszmann ,  Michel Francois Grimaud ,  Yves Lucien Trousset

发明人： Daniel Eduardo Groszmann ,  Michel Francois Grimaud ,  Yves Lucien Trousset

IPC分类号： A61B5/05

CPC分类号： A61B6/12 ,  A61B5/061 ,  A61B5/11 ,  A61B6/02 ,  A61B6/5217 ,  A61B8/0833 ,  A61B34/20 ,  A61B2034/2051

摘要： An interventional device configured for placement in or near an internal organ or tissue is provided. The interventional device includes a reference portion having three or more sensor elements. In one implementation, the interventional device and associated sensor elements provide dynamic referencing of the internal organ, tissue or associated vasculature after registration of the sensor data with images and/or volumetric representations of the internal organ or tissue.

摘要翻译： 提供了构造用于放置在内部器官或组织内或附近的介入装置。 介入装置包括具有三个或更多个传感器元件的参考部分。 在一个实施方案中，介入装置和相关联的传感器元件在将传感器数据登记到内部器官或组织的图像和/或体积表示之后提供内部器官，组织或相关联的脉管系统的动态参考。

公开(公告)号：US20120275563A1

公开(公告)日：2012-11-01

申请号：US13098173

申请日：2011-04-29

申请人： Joseph John Manak ,  Bernhard Erich Hermann Claus ,  Jens Rittscher ,  Hao Lai ,  Jeffrey Wayne Eberhard ,  Kedar Bhalchandra Khare ,  Cyril Riddell ,  Yves Lucien Trousset

发明人： Joseph John Manak ,  Bernhard Erich Hermann Claus ,  Jens Rittscher ,  Hao Lai ,  Jeffrey Wayne Eberhard ,  Kedar Bhalchandra Khare ,  Cyril Riddell ,  Yves Lucien Trousset

IPC分类号： G01N23/04

CPC分类号： A61B6/4452 ,  A61B6/00 ,  A61B6/027

摘要： The subject matter disclosed herein relates to X-ray imaging systems, and more specifically to digital X-ray imaging systems. In one embodiment, an imaging system includes an X-ray source configured to emit X-rays. The imaging system also includes an X-ray detector configured to detect the emitted X-rays and produce a corresponding electrical signal. The imaging system also includes a gantry configured to at least partially revolve the X-ray source and the X-ray detector about a primary rotational axis. The X-ray detector is coupled to the gantry so that a diagonal of the X-ray detector is oriented substantially perpendicular to the primary rotational axis.

摘要翻译： 本文公开的主题涉及X射线成像系统，更具体地涉及数字X射线成像系统。 在一个实施例中，成像系统包括被配置为发射X射线的X射线源。 成像系统还包括被配置为检测所发射的X射线并产生相应的电信号的X射线检测器。 成像系统还包括构造成使X射线源和X射线检测器围绕主旋转轴线至少部分地旋转的台架。 X射线检测器耦合到台架，使得X射线检测器的对角线基本上垂直于主旋转轴线定向。