公开(公告)号：EP2595541A1

公开(公告)日：2013-05-29

申请号：EP11746626.8

申请日：2011-07-15

申请人： Koninklijke Philips Electronics N.V. ,  Philips Intellectual Property & Standards GmbH

发明人： FLORENT, Laurent ,  AUVRAY, Vincent ,  GRASS, Michael ,  SCHAEFER, Dirk ,  SCHOONENBERG, Gert Antonius Franciscus

IPC分类号： A61B6/12 ,  G06T7/00 ,  A61B19/00

摘要： An adaptive roadmapping device and method for examination of an object include providing pre-navigation image data representing part of the object being a vascular structure including an element of interest and having a tree-like structure with a plurality of sub-trees; generating a vessel representation based on the pre-navigation image data; acquiring live image data of the object; determining spatial relation of the pre-navigation image data and the live image data; analyzing the live image data by identifying and localizing the element in the live image data; determining a sub-tree in which the element is positioned, where the determining is based on the localization of the element and on the spatial relation; selecting a portion of the vascular structure based on the determined sub-tree; generating a combination of the live image data and an image of the selected portion of the vascular structure; and displaying the combination as a tailored roadmap.

摘要翻译： 用于检查对象的适应性路线图设备和方法包括提供表示作为包括感兴趣元素并且具有多个子树的树状结构的血管结构的对象的一部分的导航前图像数据; 基于所述导航前图像数据生成船舶表示; 获取对象的实时图像数据; 确定所述导航前图像数据和实况图像数据之间的空间关系; 通过识别和定位实时图像数据中的元素来分析实时图像数据; 确定所述元素所在的子树，其中所述确定基于所述元素的定位以及所述空间关系; 基于确定的子树选择血管结构的一部分; 生成实时图像数据和血管结构的所选部分的图像的组合; 并将该组合显示为定制的路线图。

公开(公告)号：EP2567359A1

公开(公告)日：2013-03-13

申请号：EP11725511.7

申请日：2011-04-12

申请人： Koninklijke Philips Electronics N.V. ,  Philips Intellectual Property & Standards GmbH

发明人： GRASS, Michael ,  ISOLA, Alfonso, Agatino

IPC分类号： G06T7/00

CPC分类号： G06T7/0026 ,  A61B6/507 ,  G06T7/32 ,  G06T2207/10076 ,  G06T2207/30104

摘要： A method of registering a 4D contrast enhanced image data set, wherein the 4D contrast enhanced image data set includes image data of the same volume of interest acquired at different timeframes with changing contrast enhancement, the volume of interest includes moving structure, and the different timeframes correspond to a predetermined motion phase of interest in different motion cycles of the moving structure, the method, comprising: registering image data corresponding to a plurality of the different timeframes with reference image from one of the timeframes.

摘要翻译： 一种注册4D对比度增强图像数据集的方法，其中所述4D对比度增强图像数据集包括在改变对比度增强的不同时间帧处获取的相同感兴趣体积的图像数据，所述感兴趣的体积包括移动结构和不同的时间帧 对应于移动结构的不同运动周期中的感兴趣的预定运动阶段，该方法包括：从与时间帧之一的参考图像对应于多个不同时间帧的图像数据。

公开(公告)号：EP1913558B1

公开(公告)日：2012-03-28

申请号：EP06766067.0

申请日：2006-07-12

申请人： Koninklijke Philips Electronics N.V. ,  Philips Intellectual Property & Standards GmbH

发明人： GRASS, Michael ,  RASCHE, Volker ,  SCHAEFER, Dirk

IPC分类号： G06T11/00

CPC分类号： G06T11/005 ,  G06T2211/412

摘要： A method for generating or reconstruction of three-dimensional (3D) images corresponding to a structure of interest (60) including: acquiring a plurality of image projections corresponding to a structure of interest (60); applying a shape model (66) at a selected 3D seed point (64); and adapting the shape model (66) to represent the structure of interest (60), yielding an adapted shape model. A system for generation and reconstruction of three-dimensional (3D) images. The system (10) includes: an imaging system (12) configured to provide projection data corresponding to a structure of interest (60); and a controller (50) in operable communication with the imaging system (50). The controller (50) is configured to: receive the projection data, (64); apply a shape model (66) at a selected 3D seed point (64); and adapt the shape model (66) to represent the structure of interest (60), thereby yielding an adapted shape model.

摘要翻译： 一种用于生成或重建对应于感兴趣结构（60）的三维（3D）图像的方法，包括：获取对应于感兴趣结构的多个图像投影（60）; 在选定的3D种子点（64）上应用形状模型（66）; 以及使形状模型（66）适应于表示感兴趣的结构（60），产生适应的形状模型。 一种用于三维（3D）图像的生成和重建的系统。 该系统（10）包括：成像系统（12），被配置为提供对应于感兴趣结构（60）的投影数据; 以及与成像系统（50）可操作地通信的控制器（50）。 控制器（50）被配置为：接收投影数据（64）; 在所选择的3D种子点（64）上应用形状模型（66）; 并适应形状模型（66）以表示感兴趣的结构（60），从而产生适应的形状模型。

公开(公告)号：EP2395935A1

公开(公告)日：2011-12-21

申请号：EP10703985.1

申请日：2010-02-04

申请人： Koninklijke Philips Electronics N.V. ,  Philips Intellectual Property & Standards GmbH

发明人： HANSIS, Eberhard, S. ,  GRASS, Michael

IPC分类号： A61B19/00

CPC分类号： A61B19/54 ,  A61B90/39 ,  A61B2034/102 ,  A61B2090/376 ,  A61F2002/30619 ,  A61F2250/0097 ,  A61F2250/0098 ,  A61M25/0108

摘要： The present invention relates to a system for determining the orientation of a catheter (2). The system comprises a catheter (2), an asymmetric marker (11) attached to the catheter (2), and an imaging unit (25) for generating a projection image of the asymmetric marker (11), wherein the imaging unit (25) comprises a radiation source for generating radiation for projecting the asymmetric marker (11) in a projection plane and a detection unit for generating the projection image of the asymmetric marker (11) projected in the projection plane. The system comprises further an orientation determination unit for determining the orientation of the asymmetric marker (11) from the projection image of the asymmetric marker (11) and for determining the orientation of the catheter (2) from the determined orientation of the asymmetric marker (11). The asymmetric marker (11) is adapted such that the orientation of the asymmetric marker (11) is determinable from the projection image of the asymmetric marker (11) alone.

公开(公告)号：EP2369994A1

公开(公告)日：2011-10-05

申请号：EP09764092.4

申请日：2009-11-20

申请人： Philips Intellectual Property & Standards GmbH ,  Koninklijke Philips Electronics N.V.

发明人： HANSIS, Eberhard, S. ,  GRASS, Michael

IPC分类号： A61B6/00 ,  G06T11/00

CPC分类号： A61B6/504 ,  A61B6/4441 ,  A61B6/466 ,  A61B6/481 ,  A61B6/541 ,  G06T11/006 ,  G06T2211/404

摘要： The present invention is related to a method for reconstruction of the coronary arteries and an examination apparatus for reconstruction of the coronary arteries. To provide improved coronary artery information, an apparatus and a method are provided where a gating signal is provided (32) and a first gated X-ray image sequence of one of the left or right branches of the coronary arteries is acquired (34) with injected contrast agent into the one of the left or right branches of the coronary arteries. Further, a second gated X-ray image sequence of the other branch of the coronary arteries is acquired (36) with injected contrast agent into said other branch. Then, a gated reconstructing (38) of the left and the right coronary artery is suggested and a volume data (40, 42) of the coronary arteries is generated. The volume data of the left and right coronary arteries is registered (44) in relation to time and space. Further; the registered volume data (48, 50) of the left and the right coronary arteries is combined and a combined coronary artery tree volume data set (52) is generated (54). Finally, the combined coronary tree volume data set is visualized (56).

公开(公告)号：EP2220618A1

公开(公告)日：2010-08-25

申请号：EP08850671.2

申请日：2008-11-04

申请人： Koninklijke Philips Electronics N.V. ,  Philips Intellectual Property & Standards GmbH

发明人： GRASS, Michael ,  ZIEGLER, Andy

IPC分类号： G06T7/20

CPC分类号： G06T7/251 ,  G06T7/246 ,  G06T2207/10076 ,  G06T2207/10081 ,  G06T2207/20004 ,  G06T2207/20092 ,  G06T2207/30048

摘要： The present invention relates to an apparatus for determining a parameter of a moving object, wherein the apparatus comprises an adaptive model providing unit (12) for providing an adaptive model of the object. The user can define the region of the adaptive model by a user interface (13). The apparatus further comprises an image data set providing unit (14) for providing a spatially and temporally dependent image data set of the moving object and an adaptation unit (15) for adapting at least a defined region of the adaptive model to the spatially and temporally dependent image data set for determining a spatially and temporally dependence of the defined region. The parameter of the moving object is determined depending on the spatially and temporally dependence of the defined region by a parameter determining unit (16).

摘要翻译： 本发明涉及一种用于确定移动物体的参数的装置，其中，该装置包括用于提供物体的自适应模型的自适应模型提供单元（12）。 用户可以通过用户界面来定义自适应模型的区域（13）。 该装置还包括用于提供移动物体的空间和时间上依赖的图像数据集的图像数据集提供单元（14），以及适配单元（15），用于至少将自适应模型的定义区域适应于空间和时间上 用于确定所定义区域的空间和时间依赖性的依赖图像数据集。 移动对象的参数根据由参数确定单元（16）定义的区域的空间和时间依赖性来确定。

公开(公告)号：EP2191441A2

公开(公告)日：2010-06-02

申请号：EP08807289.7

申请日：2008-08-12

申请人： Philips Intellectual Property & Standards GmbH ,  Koninklijke Philips Electronics N.V.

发明人： JANDT, Uwe ,  SCHAEFER, Dirk ,  GRASS, Michael

IPC分类号： G06T7/00

CPC分类号： G06T5/50 ,  G06T7/12 ,  G06T7/155 ,  G06T2207/10081 ,  G06T2207/10121 ,  G06T2207/30021

摘要： A system (900) and method for automatic projection-based removing of high-contrast artificial objects from a medical image is provided. The method comprises performing a low-pass filtering (1100) to the two-dimensional image (100, 500, 1000) using a filter width range (1110) corresponding to structures of a line-shaped artificial object to generate a low-pass filtered intensity image and performing an evaluation of the Hessian matrix of each pixels of the low-pass filtered intensity image for locating and enhancing the structure of the line-shaped artificial object to generate a multi-scale filtered intensity image, wherein predefined scaling widths are used in order to avoid the locating and enhancing of larger structures.

摘要翻译： 提供了一种用于从医学图像自动投影去除高对比度人造物体的系统（900）和方法。 该方法包括使用对应于线状人造物体的结构的滤波器宽度范围（1110）对二维图像（100,500,1000）进行低通滤波（1100），以产生低通滤波 强度图像，并对低通滤波强度图像的每个像素的Hessian矩阵进行评估，以定位和增强线状人造物体的结构，以生成多尺度滤波强度图像，其中使用预定义的缩放宽度 以避免较大结构的定位和增强。

公开(公告)号：EP2175779A2

公开(公告)日：2010-04-21

申请号：EP08789222.0

申请日：2008-07-08

申请人： Philips Intellectual Property & Standards GmbH ,  Koninklijke Philips Electronics N.V.

发明人： JANDT, Uwe ,  SCHAEFER, Dirk ,  GRASS, Michael

IPC分类号： A61B6/00 ,  G06T11/00

CPC分类号： A61B6/504 ,  A61B6/4441 ,  A61B6/463 ,  A61B6/481 ,  A61B6/541 ,  G06T7/0012 ,  G06T7/564 ,  G06T7/596 ,  G06T7/60 ,  G06T11/006 ,  G06T17/00 ,  G06T2200/08 ,  G06T2207/10112 ,  G06T2207/10116 ,  G06T2207/20044 ,  G06T2207/30101 ,  G06T2211/404 ,  G06T2211/412

摘要： A method and an apparatus for acquiring 3-dimensional images of coronary vessels (11), particularly of coronary veins, is proposed. 2-dimensional X-ray images (13) are acquired within a same phase of a cardiac motion. Then, a 3- dimensional centerline model (15) is generated based on these 2-dimensional images. From 2-dimensional projections of the centerline model into respective projection planes, the local diameters (w) of the vessels in the projection plane can be derived. Having the diameters, a 3-dimensional hull model of the vessel system can be generated and, optionally, 4-dimensional information about the vessel movement can be derived.

摘要翻译： 提出了一种用于获取冠状血管（11），特别是冠状静脉的三维图像的方法和装置。 在心脏运动的相同相位中获取2维X射线图像（13）。 然后，基于这些二维图像生成三维中心线模型（15）。 从中心线模型的二维投影到各个投影平面，可以推导出投影平面中容器的局部直径（w）。 具有直径，可以产生容器系统的三维船体模型，并且可选地，可以导出关于船只运动的4维信息。

公开(公告)号：EP1917641A2

公开(公告)日：2008-05-07

申请号：EP06780324.7

申请日：2006-08-04

申请人： Koninklijke Philips Electronics N.V. ,  Philips Intellectual Property & Standards GmbH

发明人： SCHAEFER, Dirk ,  GRASS, Michael ,  JANDT, Uwe

IPC分类号： G06T7/00 ,  G06T7/60

CPC分类号： G06T7/11 ,  G06T2207/10121 ,  G06T2207/20132 ,  G06T2207/20156 ,  G06T2207/30101

摘要： A method for computer-aided four-dimensional (4D) modeling of an anatomical object comprises acquiring a set of three-dimensional (3D) models representing a plurality of static states of the object throughout a cycle. A 4D correspondency estimation is performed on the set of 3D models to determine which points of the 3D models most likely correspond to each other, wherein the 4D correspondency estimation includes one or more of (i) defining a reference phase, (ii) performing vessel-oriented correspondency estimation, and (iii) post-processing of 4D motion data. The method further comprises automatic 3D modeling with a front propagation algorithm.

摘要翻译： 用于解剖对象的计算机辅助四维（4D）建模的方法包括在整个循环中获取表示对象的多个静态的一组三维（3D）模型。 对所述3D模型集进行4D对应度估计，以确定所述3D模型中哪些点最可能彼此对应，其中所述4D对应估计包括以下中的一个或多个（i）定义参考相位，（ii）执行血管 （iii）4D运动数据的后处理。 该方法还包括使用前向传播算法的自动3D建模。

公开(公告)号：EP1723607A1

公开(公告)日：2006-11-22

申请号：EP05703028.0

申请日：2005-02-23

申请人： Philips Intellectual Property & Standards GmbH ,  Koninklijke Philips Electronics N.V.

发明人： KÖHLER, Thomas ,  GRASS, Michael ,  NIELSEN, Tim ,  KOKEN, Peter

IPC分类号： G06T11/00

CPC分类号： G06T11/006 ,  G06T2211/412

摘要： Using only projection data in one temporal gating window around a certain target phase point may lead to motion artifacts such as blurred images. By using projection data corresponding to three temporal gating windows, which are slightly shifted with respect to each other but at least partially overlap, motion within the gating window may be estimated and, according to an exemplary embodiment of the present invention, this estimation may be used for improving the image quality. Advantageously, only the projection data inside the at least partially overlapping gating windows are used for reconstruction and motion compensation.