Method and apparatus for generating a 2D image having pixels corresponding to voxels of a 3D image
    1.
    发明授权
    Method and apparatus for generating a 2D image having pixels corresponding to voxels of a 3D image 有权
    用于生成具有与3D图像的体素对应的像素的2D图像的方法和装置

    公开(公告)号:US07746340B2

    公开(公告)日:2010-06-29

    申请号:US11398210

    申请日:2006-04-04

    IPC分类号: G06T15/00

    CPC分类号: G06T11/008 G06T15/08

    摘要: Disclosed is a method and apparatus for generating a two dimensional (2D) image of a structure (e.g., an organ) that has at least one pixel corresponding to at least one voxel of a three dimensional (3D) image of the structure. First, the surface of the structure in the 3D image is modeled by a geometrical volume such as an ellipsoid. Next, normal maximum intensity projection (MIP) rays are cast (i.e., projected) for voxels of the geometrical volume. The 2D image is then generated using the rays. The 2D image has at least one pixel that corresponds to at least one voxel of the 3D image.

    摘要翻译: 公开了一种用于生成具有与该结构的三维(3D)图像的至少一个体素相对应的至少一个像素的结构(例如,器官)的二维(2D)图像的方法和装置。 首先,3D图像中的结构的表面由诸如椭圆体的几何体积建模。 接下来,对于几何体积的体素,投射(即投影)正常的最大强度投影(MIP)射线。 然后使用光线生成2D图像。 2D图像具有对应于3D图像的至少一个体素的至少一个像素。

    System and method for fused PET-CT visualization for heart unfolding
    3.
    发明授权
    System and method for fused PET-CT visualization for heart unfolding 有权
    用于心脏展开的融合PET-CT可视化的系统和方法

    公开(公告)号:US07813535B2

    公开(公告)日:2010-10-12

    申请号:US11401640

    申请日:2006-04-11

    IPC分类号: G06K9/00

    CPC分类号: A61B5/05

    摘要: A method for fusing two digitized image datasets for 2-dimensional visualization of the heart, includes providing a first digitized image and a second digitized image, each image acquired from a different imaging modality and each comprising a plurality of intensities corresponding to a domain of points on a 3-dimensional grid, and wherein the first and second images have been registered, segmenting the heart in one of said digitized images, forming a 2-dimensional maximum intensity projection of a surface of said heart from each of said digitized images, and fusing said images by overlaying one 2-dimensional projection of said surface over the other 2-dimensional projection of said surface.

    摘要翻译: 一种用于将两个数字化图像数据集融合用于心脏的二维可视化的方法,包括提供第一数字化图像和第二数字化图像,每个图像从不同的成像模态获取,并且每个图像包括对应于点的域的多个强度 并且其中已经登记了第一和第二图像,在所述数字化图像之一中分割心脏,从每个所述数字化图像形成所述心脏的表面的2维最大强度投影,以及 通过将所述表面的一个二维投影覆盖在所述表面的另一个二维投影上来对所述图像进行融合。

    Automatic coronary isolation using a n-MIP ray casting technique
    4.
    发明授权
    Automatic coronary isolation using a n-MIP ray casting technique 有权
    使用n-MIP射线投射技术进行自动冠状动脉隔离

    公开(公告)号:US07574247B2

    公开(公告)日:2009-08-11

    申请号:US10983921

    申请日:2004-11-08

    IPC分类号: A61B5/05 G06K9/00

    摘要: A novel method is presented for detecting coronary arteries as well as other peripheral vessels of the heart. After finding the location of the myocardium through a segmentation method, such as a graph theoretic segmentation method, the method models the heart with a biaxial ellipsoid. For each point of the ellipsoid, a collection of intensities are computed that are normal to the surface. This collection is then filtered to detect the cardiovascular structures. Ultimately, vessel centerline points are detected using a vessel tracking method, and linked together to form a complete coronary artery tree.

    摘要翻译: 提出了一种用于检测冠状动脉以及心脏其他外周血管的新方法。 通过分割方法(如图形理论分割方法)找到心肌的位置后,该方法用双轴椭圆体对心脏进行建模。 对于椭圆体的每个点,计算与表面垂直的强度集合。 然后将该集合过滤以检测心血管结构。 最终,使用血管跟踪方法检测血管中心线点,并连接在一起以形成完整的冠状动脉树。

    CT/MRI heart isolation using a graph cut algorithm
    6.
    发明授权
    CT/MRI heart isolation using a graph cut algorithm 有权
    CT / MRI心脏隔离采用图形切割算法

    公开(公告)号:US07634123B2

    公开(公告)日:2009-12-15

    申请号:US11370302

    申请日:2006-03-08

    IPC分类号: G06K9/00

    摘要: A method and related system for automatically and efficiently isolating the heart in Computer Tomography (CT) or Magnetic Resonance Imaging cardiac scans is disclosed. The method involves segmenting a heart within a set of volumetric data. In accordance with one aspect of the present invention, the set of volumetric data is processed to determine the minimum value of an energy function having a first term, a second term and a third term. The heart is segmented based on the processing of the set of volumetric data.

    摘要翻译: 公开了一种用于在计算机断层扫描(CT)或磁共振成像心脏扫描中自动和有效隔离心脏的方法和相关系统。 该方法涉及在一组体积数据内分割心脏。 根据本发明的一个方面,处理一组体积数据以确定具有第一项,第二项和第三项的能量函数的最小值。 基于体积数据集合的处理来分割心脏。

    Method and apparatus for generating a 2D image having pixels corresponding to voxels of a 3D image
    7.
    发明申请
    Method and apparatus for generating a 2D image having pixels corresponding to voxels of a 3D image 有权
    用于生成具有与3D图像的体素对应的像素的2D图像的方法和装置

    公开(公告)号:US20060251307A1

    公开(公告)日:2006-11-09

    申请号:US11398210

    申请日:2006-04-04

    IPC分类号: G06K9/00

    CPC分类号: G06T11/008 G06T15/08

    摘要: Disclosed is a method and apparatus for generating a two dimensional (2D) image of a structure (e.g., an organ) that has at least one pixel corresponding to at least one voxel of a three dimensional (3D) image of the structure. First, the surface of the structure in the 3D image is modeled by a geometrical volume such as an ellipsoid. Next, normal maximum intensity projection (MIP) rays are cast (i.e., projected) for voxels of the geometrical volume. The 2D image is then generated using the rays. The 2D image has at least one pixel that corresponds to at least one voxel of the 3D image.

    摘要翻译: 公开了一种用于生成具有与该结构的三维(3D)图像的至少一个体素相对应的至少一个像素的结构(例如,器官)的二维(2D)图像的方法和装置。 首先,3D图像中的结构的表面由诸如椭圆体的几何体积建模。 接下来,对于几何体积的体素,投射(即投影)正常的最大强度投影(MIP)射线。 然后使用光线生成2D图像。 2D图像具有对应于3D图像的至少一个体素的至少一个像素。

    System and method for fused PET-CT visualization for heart unfolding
    8.
    发明申请
    System and method for fused PET-CT visualization for heart unfolding 有权
    用于心脏展开的融合PET-CT可视化的系统和方法

    公开(公告)号:US20060235294A1

    公开(公告)日:2006-10-19

    申请号:US11401640

    申请日:2006-04-11

    IPC分类号: A61B5/05 A61B6/00

    CPC分类号: A61B5/05

    摘要: A method for fusing two digitized image datasets for 2-dimensional visualization of the heart, includes providing a first digitized image and a second digitized image, each image acquired from a different imaging modality and each comprising a plurality of intensities corresponding to a domain of points on a 3-dimensional grid, and wherein the first and second images have been registered, segmenting the heart in one of said digitized images, forming a 2-dimensional maximum intensity projection of a surface of said heart from each of said digitized images, and fusing said images by overlaying one 2-dimensional projection of said surface over the other 2-dimensional projection of said surface.

    摘要翻译: 一种用于将两个数字化图像数据集融合用于心脏的二维可视化的方法,包括提供第一数字化图像和第二数字化图像,每个图像从不同的成像模态获取,并且每个图像包括对应于点的域的多个强度 并且其中已经登记了第一和第二图像,在所述数字化图像之一中分割心脏,从每个所述数字化图像形成所述心脏的表面的2维最大强度投影,以及 通过将所述表面的一个二维投影覆盖在所述表面的另一个二维投影上来对所述图像进行融合。

    System and method for vascular segmentation by Monte-Carlo sampling
    10.
    发明授权
    System and method for vascular segmentation by Monte-Carlo sampling 有权
    通过蒙特卡洛抽样进行血管分割的系统和方法

    公开(公告)号:US07715626B2

    公开(公告)日:2010-05-11

    申请号:US11384894

    申请日:2006-03-20

    IPC分类号: G06K9/34

    摘要: A method of segmenting tubular structures in digital images includes selecting a point in an image of a tubular object to be segmented, defining an initial state of the selected point, initializing measurement weights, a conditional probability distribution and a prior probability distribution of a feature space of the initial state, sampling the feature space from the prior probability distribution, estimating a posterior probability distribution by summing sample measurements weighted by the measurement weights, and segmenting a cross section of the tubular object from the posterior probability distribution.

    摘要翻译: 在数字图像中分割管状结构的方法包括:选择要分割的管状物体的图像中的点,定义所选点的初始状态,初始化测量权重,条件概率分布和特征空间的先验概率分布 的初始状态,从先验概率分布中抽取特征空间,通过对由测量权重加权的样本测量求和来估计后验概率分布,以及从后验概率分布中分割管状对象的横截面。