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。

    Organ wall analysis with ray-casting
    3.
    发明授权
    Organ wall analysis with ray-casting 有权
    器官壁分析与射线铸造

    公开(公告)号:US07233330B2

    公开(公告)日:2007-06-19

    申请号:US10978655

    申请日:2004-11-01

    IPC分类号: G06T17/00

    摘要: A system and corresponding method for organ wall analysis are provided, the system including a processor, an imaging adapter in signal communication with the processor for receiving organ scan data indicative of an organ, a distance mapping unit in signal communication with the processor for providing a three-dimensional distance map of a segmented outer surface of an organ, and a ray-casting unit in signal communication with the processor for providing a maximum intensity projection substantially normal to the segmented outer surface for each of a plurality of rays, and for forming a ray collection by casting each of the plurality of rays from a center of the organ through the respective maximum intensity projection to the segmented outer surface; and the corresponding method including providing a three-dimensional distance map of a segmented outer surface of an organ, providing a maximum intensity projection substantially normal to the segmented outer surface for each of a plurality of rays, and forming a ray collection by casting each of the plurality of rays from a center of the organ through the respective MIP to the segmented outer surface.

    摘要翻译: 提供了一种用于器官壁分析的系统和相应的方法,所述系统包括处理器,与处理器进行信号通信的成像适配器,用于接收指示器官的器官扫描数据,与处理器进行信号通信的距离映射单元, 器官的分割外表面的三维距离图,以及与处理器信号通信的射线投射单元,用于提供基本上垂直于多个射线的分段外表面的最大强度投影,并且用于形成 通过将来自器官中心的多个射线中的每一个通过相应的最大强度投影到分割的外表面来进行射线收集; 以及相应的方法,包括提供器官的分割外表面的三维距离图,为多个射线中的每一个提供基本上垂直于分割的外表面的最大强度突出,并且通过铸造每个 从器官的中心通过相应的MIP到分割的外表面的多条光线。

    System and method for fused PET-CT visualization for heart unfolding
    4.
    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
    5.
    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
    7.
    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
    8.
    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
    9.
    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。