利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

66 条记录 (耗时 0.088 秒)

    Method and apparatus for semi-automatic segmentation technique for low-contrast tubular shaped objects
    2.
    发明授权
    Method and apparatus for semi-automatic segmentation technique for low-contrast tubular shaped objects 有权
    用于低对比度管状物体的半自动分割技术的方法和装置

    公开(公告)号：US07565000B2

    公开(公告)日：2009-07-21

    申请号：US11286550

    申请日：2005-11-23

    申请人： Renaud Capolunghi ,  Laurent Launay ,  Jerome Knoplioch ,  Pál Csongor Sprencz

    发明人： Renaud Capolunghi ,  Laurent Launay ,  Jerome Knoplioch ,  Pál Csongor Sprencz

    IPC分类号： G06K9/00 ,  G06K9/34

    CPC分类号： G06T7/12 ,  G06T2207/10072 ,  G06T2207/20096 ,  G06T2207/30101

    摘要： A system and method for segmenting and editing anatomical objects from medical images is disclosed. The system may be a medical diagnostic imaging system. A computer unit may execute computer software for segmenting anatomical objects from medical images. The computer software may extract an anatomical object from planar curves. The computer software may extract an anatomical object by computing the centerline of the anatomical object. A set of reformatted images may then be derived based on the centerline of the object. A user may then provide input in the form of user drawn contours on a plurality of reformatted images. In an embodiment the reformatted images may include a reformatted longitudinal view, a curved reformatted view, or a lumen view. The user drawn contours may correspond to the boundaries of the anatomical object to be segmented. The anatomical object may then be extracted based on the user drawn contours.

    摘要翻译： 公开了一种用于从医学图像分割和编辑解剖学对象的系统和方法。 该系统可以是医学诊断成像系统。 计算机单元可以执行用于从医学图像分割解剖对象的计算机软件。 计算机软件可以从平面曲线提取解剖学对象。 计算机软件可以通过计算解剖对象的中心线来提取解剖学对象。 然后可以基于对象的中心线导出一组重新格式化的图像。 然后，用户可以在多个重新格式化的图像上以用户绘制的轮廓的形式提供输入。 在一个实施例中，重新格式化的图像可以包括重新格式化的纵向视图，曲线重新格式化视图或管腔视图。 用户绘制的轮廓可以对应于待分割的解剖学对象的边界。 然后可以基于用户绘制的轮廓来提取解剖对象。

    Iterative vascular identification
    3.
    发明申请
    Iterative vascular identification 有权
    迭代血管鉴定

    公开(公告)号：US20070118024A1

    公开(公告)日：2007-05-24

    申请号：US11301950

    申请日：2005-12-13

    申请人： Renaud Capolunghi ,  Laurent Launay ,  Laurent Stefani ,  Ruben Laramontalvo

    发明人： Renaud Capolunghi ,  Laurent Launay ,  Laurent Stefani ,  Ruben Laramontalvo

    IPC分类号： G06F19/00

    CPC分类号： G06T7/0012 ,  G06T7/11 ,  G06T2207/10081 ,  G06T2207/20156 ,  G06T2207/30101

    摘要： Certain embodiments of the present invention provide a method for identifying vascular structure in an image including: receiving at least one image including a vascular network; identifying at least one seed point corresponding to the vascular network; identifying automatically at least a portion of the vascular network to form an original vascular identification based at least in part on the at least one seed point; and allowing a dynamic user interaction with the vascular identification to form an iterative vascular identification. In an embodiment, the iterative vascular identification is formable in real-time. In an embodiment, the iterative vascular identification is displayable in real-time. In an embodiment, the iterative vascular identification is formable without re-identifying substantially unaltered portions of the vascular identification.

    摘要翻译： 本发明的某些实施例提供一种用于识别图像中的血管结构的方法，包括：接收包括血管网络的至少一个图像; 识别对应于血管网络的至少一个种子点; 至少部分地基于至少一个种子点自动识别血管网络的至少一部分以形成原始血管识别; 并允许与血管识别的动态用户交互以形成迭代血管鉴定。 在一个实施例中，迭代血管识别是可实时形成的。 在一个实施例中，迭代血管识别可以实时显示。 在一个实施方案中，迭代血管鉴定是可形成的，而不重新鉴定血管鉴定的基本上未改变的部分。

    Method and apparatus for cardiac radiological examination in coronary angiography
    4.
    发明授权
    Method and apparatus for cardiac radiological examination in coronary angiography 失效
    冠状动脉造影中心脏放射检查的方法和装置

    公开(公告)号：US07065395B2

    公开(公告)日：2006-06-20

    申请号：US10295055

    申请日：2002-11-04

    申请人： Jean Lienard ,  Regis Vaillant ,  Francisco Sureda ,  Laurent Launay

    发明人： Jean Lienard ,  Regis Vaillant ,  Francisco Sureda ,  Laurent Launay

    IPC分类号： A61B6/00

    CPC分类号： A61B6/541 ,  A61B6/481 ,  A61B6/504

    摘要： A method of cardiac radiological examination for coronarography comprises the steps of: a) introducing contrast medium simultaneously in the left coronary artery and in the right coronary artery from the aortic root and, in parallel, b) acquiring a sequence of dynamic images of the propagation of the contrast medium in the left and right coronary arteries with a displacement of the image plane, during the acquisition of said images, along a determined trajectory (E28). The contrast medium can be introduced in a cyclic manner during the acquisition of dynamic images, each cycle of introduction corresponding to a phase of closure of the aortic valve in the cardiac rhythm. 3D and 4D images with optimal efficiency can be obtained in the use of contrast medium. An injection device for producing the above cycles is synchronized with the introduction of the contrast medium.

    摘要翻译： 冠状动脉造影的心脏放射检查方法包括以下步骤：a）在主动脉根部的左冠状动脉和右冠状动脉中同时引入造影剂，并行并行地获得传播的动态图像序列 沿着确定的轨迹（E28），在获取所述图像期间具有图像平面位移的左冠状动脉和右冠状动脉中的造影剂。 可以在获取动态图像期间以循环方式引入造影剂，每个引入周期对应于主动脉瓣在心律中的闭合阶段。 在使用造影剂时可以获得具有最佳效率的3D和4D图像。 用于产生上述循环的注射装置与造影剂的引入同步。

    Methods and apparatus for assisting cardiac resynchronization therapy
    6.
    发明申请
    Methods and apparatus for assisting cardiac resynchronization therapy 有权
    辅助心脏再同步治疗的方法和装置

    公开(公告)号：US20050096523A1

    公开(公告)日：2005-05-05

    申请号：US10900847

    申请日：2004-07-28

    申请人： Melissa Vass ,  Darin Okerlund ,  Laurent Launay ,  Jasbir Sra

    发明人： Melissa Vass ,  Darin Okerlund ,  Laurent Launay ,  Jasbir Sra

    IPC分类号： A61B6/00 ,  A61B6/03 ,  G06T7/00 ,  A61B5/05

    CPC分类号： A61B6/541 ,  A61B5/7289 ,  A61B6/032 ,  A61B6/503 ,  A61B6/504 ,  A61B6/507 ,  G06T7/0012 ,  G06T2207/30048

    摘要： A method for assisting the planning of an interventional biventricular pacing procedure includes segmenting an image dataset of a heart of a patient to extract a surface of a left ventricle (LV) and a LV myocardium of the patient's heart, utilizing the segmented image dataset to divide the LV into myocardial segments or into a plurality of short axis slices, and detecting wall motion of each short axis slice of phases of a cardiac cycle of the patient's heart with respect to a reference phase. The method also includes localizing a region most recently attaining maximum displacement and a region most recently attaining maximum velocity, and generating 2D or 3D renderings including renderings indicating at least one of time delays of contraction, a maximum displacement, or a maximum velocity.

    摘要翻译： 一种辅助介入性双心室起搏程序的规划的方法包括：利用分割图像数据集分割患者心脏的图像数据集，以提取患者心脏的左心室（LV）和LV心肌的表面 LV进入心肌段或多个短轴切片，并且相对于参考相位检测患者心脏的心动周期的每个短轴切片的壁运动。 该方法还包括定位最近达到最大位移的区域和最近达到最大速度的区域，以及生成2D或3D渲染，包括指示收缩的时间延迟，最大位移或最大速度中的至少一个的渲染。

    Preprocessing methods for robust tracking of coronary arteries in cardiac computed tomography images and systems therefor
    7.
    发明授权
    Preprocessing methods for robust tracking of coronary arteries in cardiac computed tomography images and systems therefor 失效
    用于心脏计算机断层扫描图像及其系统中冠状动脉的鲁棒跟踪的预处理方法

    公开(公告)号：US06888916B2

    公开(公告)日：2005-05-03

    申请号：US10642710

    申请日：2003-08-18

    申请人： Laurent Launay ,  Renaud Capolunghi ,  Jérôme Knoplioch

    发明人： Laurent Launay ,  Renaud Capolunghi ,  Jérôme Knoplioch

    IPC分类号： A61B6/00 ,  A61B6/03 ,  G06T5/00

    CPC分类号： G06T7/0012 ,  A61B5/02007 ,  A61B6/032 ,  A61B6/4085 ,  A61B6/503 ,  A61B6/504 ,  A61B6/541 ,  G06T7/11 ,  G06T7/155 ,  G06T2207/10081 ,  G06T2207/30048 ,  Y10S378/901

    摘要： Preprocessing methods of this invention remove data relating to cavities of the heart, and improve density mix of parts left therein during CT imaging, so as to allow coronary arteries to be more accurately tracked with conventional tracking algorithms than currently possible. An embodiment comprises: obtaining an original CT voxel dataset comprising a plurality of voxels; creating a heart voxel dataset from the original voxel dataset comprising only voxels belonging to the heart; creating a heart minus cavities voxel dataset by removing voxels belonging to the left and right ventricles, the left and right atriums, and the aorta from the heart voxel dataset; enhancing predetermined voxels in the heart minus cavities voxel dataset to create an enhanced heart minus cavities voxel dataset; and mixing an intensity of the original CT voxel dataset with an intensity of the enhanced heart minus cavities voxel dataset to create the pre-processed voxel dataset.

    摘要翻译： 本发明的预处理方法除去与心脏腔相关的数据，并且在CT成像期间改善留在其中的部分的密度混合，从而允许使用比目前可能的常规跟踪算法更准确地跟踪冠状动脉。 一个实施例包括：获得包括多个体素的原始CT体素数据集; 从仅包含属于心脏的体素的原始体素数据集创建心脏体素数据集; 通过从心脏体素数据集中去除属于左心室，右心房和主动脉的体素来创建心脏凹腔体素数据集; 增强心脏中的预定体素减去腔体数据集，以创建增强的心脏减去体腔体素数据集; 并将原始CT体素数据集的强度与增强心脏的强度减去腔体体素数据集进行混合，以创建预处理体素数据集。

    Method and device for imaging with reorientation of an object
    8.
    发明申请
    Method and device for imaging with reorientation of an object 有权
    用于与对象重新定向成像成像的方法和装置

    公开(公告)号：US20050022158A1

    公开(公告)日：2005-01-27

    申请号：US10757859

    申请日：2004-01-15

    申请人： Laurent Launay ,  Yves Trousset ,  Cyril Riddell

    发明人： Laurent Launay ,  Yves Trousset ,  Cyril Riddell

    IPC分类号： G01R33/54 ,  A61B5/055 ,  A61B6/00 ,  A61B6/03 ,  G06T17/40 ,  G06F9/44

    CPC分类号： G06T19/00 ,  A61B6/00 ,  A61B6/469 ,  G06T2210/41 ,  G06T2219/2016

    摘要： A medical imaging device and method having a display screen, a processor for processing image data in order to display the data in the form of a 3D model, and a user interface. The processor acquires at least two points positioned in the 3D model via the user interface; deduces the positioning of an axis defined by the two points in the 3D model, and reorients the 3D model in such a manner that the axis as indicated in this way is to be found in a predefined orientation relative to the plane of the display screen.

    摘要翻译： 一种具有显示屏的医疗成像装置和方法，用于处理图像数据以便以3D模型的形式显示数据的处理器和用户界面。 处理器经由用户界面获取位于3D模型中的至少两个点; 推导出由3D模型中的两个点定义的轴的定位，并且以这样的方式重新定向3D模型，使得以相对于显示屏的平面的预定义方向找到以这种方式指示的轴。

    Apparatus and method for providing a three-dimensional radiographic image of an object
    10.
    发明授权
    Apparatus and method for providing a three-dimensional radiographic image of an object 失效
    用于提供物体的三维放射照相图像的装置和方法

    公开(公告)号：US06834096B2

    公开(公告)日：2004-12-21

    申请号：US10116625

    申请日：2002-04-04

    申请人： Laurent Launay ,  Sébastien Gicquel ,  Yves Trousset

    发明人： Laurent Launay ,  Sébastien Gicquel ,  Yves Trousset

    IPC分类号： A61B600

    CPC分类号： G06T11/008 ,  A61B6/5258 ,  G06T2211/404

    摘要： An apparatus and method comprises an acquisition of a first series of projected two-dimensional mask images of the object obtained for different positions of a camera around the object; an acquisition of a second series of opacified projected two-dimensional images of the object obtained at the same positions of the camera around the object; a phase of elaboration of a third series of subtracted projected two-dimensional images respectively obtained from the first and second series of images; a reconstruction of a three-dimensional subtracted image from the third series of images and from an analytical algorithm of image reconstruction; a reconstruction of a three-dimensional mask image from the first series of images and from an analytical algorithm of image reconstruction; a phase of identification of defects in the three-dimensional mask image; and elimination of the corresponding voxels in the three-dimensional subtracted image.

    摘要翻译： 一种装置和方法包括获取针对物体周围的相机的不同位置获得的对象的第一系列投影的二维掩模图像; 获取在相机周围物体的相同位置获得的对象的第二系列不透明投影的二维图像的获取; 分别从第一和第二系列图像获得的第三系列减法投影的二维图像的制作阶段; 从第三系列图像和图像重建的分析算法重建三维相减图像; 从第一系列图像和图像重建的分析算法重建三维掩模图像; 识别三维掩模图像中的缺陷的阶段; 并消除三维相减图像中的相应体素。