公开(公告)号：US08194957B2

公开(公告)日：2012-06-05

申请号：US12283883

申请日：2008-09-16

申请人： Frank Deinzer ,  Esther-Sabrina Platzer

发明人： Frank Deinzer ,  Esther-Sabrina Platzer

IPC分类号： G06K9/00

CPC分类号： A61B90/36 ,  A61B2090/365 ,  G06T7/33 ,  G06T7/38 ,  G06T2207/10072 ,  G06T2207/10116 ,  G06T2207/30104

摘要： A three-dimensional volume data record contains a vascular tree. A two-dimensional projection image is an image of an actual fill state, to which the vascular tree is filled with a contrast agent at an acquisition time. The volume data record and the projection image are registered in relation to one another by means of the set of imaging parameters. A computation facility determines an expected target fill state, which describes which parts of the vascular tree should be filled with contrast agent at acquisition time in the three-dimensional volume data record. The computation facility determines the set of imaging parameters based on the target fill state and the projection image.

摘要翻译： 三维体积数据记录包含血管树。 二维投影图像是实际填充状态的图像，在采集时间，血管树用造影剂填充到该填充状态。 体积数据记录和投影图像通过一组成像参数相对于彼此登记。 计算设备确定期望的目标填充状态，该状态描述在三维体积数据记录中在采集时刻用造影剂填充维管树的哪些部分。 计算设备基于目标填充状态和投影图像确定成像参数集合。

公开(公告)号：US20080243435A1

公开(公告)日：2008-10-02

申请号：US12079609

申请日：2008-03-27

申请人： Frank Deinzer ,  Esther-Sabrina Platzer

发明人： Frank Deinzer ,  Esther-Sabrina Platzer

IPC分类号： G06T7/40

CPC分类号： G06T7/0012 ,  G06T2207/10116 ,  G06T2207/30104

摘要： The invention relates to a method for determining a probability distribution with local three-dimensional resolution for a substance in a vascular system. An acquisition time is assigned to a group of x-ray images showing a presence distribution with local 2D resolution for a substance in the vascular system at the acquisition time. A first preliminary presence probability distribution is determined using the x-ray images assigned to the acquisition time and a volume data set of the vascular system. A second preliminary presence probability distribution is determined using the presence probability distribution for the preceding acquisition time and a migration probability distribution with the substance migrating from first vascular locations to second vascular locations. A high individual probability to vascular locations is assigned if both preliminary presence probability distributions have a high probability value for the respective vascular location. Otherwise a lower and greater than zero individual probability is assigned.

摘要翻译： 本发明涉及用于确定血管系统中物质的局部三维分辨率的概率分布的方法。 将采集时间分配给一组X射线图像，其显示在采集时间内血管系统中物质的局部2D分辨率的存在分布。 使用分配给采集时间的X射线图像和血管系统的体积数据集来确定第一初步存在概率分布。 使用先前获取时间的存在概率分布和物质从第一血管位置迁移到第二血管位置的迁移概率分布来确定第二初步存在概率分布。 如果两个初步存在概率分布具有相应血管位置的高概率值，则分配血管位置的高个体概率。 否则分配较低且大于零的个人概率。

公开(公告)号：US07949165B2

公开(公告)日：2011-05-24

申请号：US12079609

申请日：2008-03-27

申请人： Frank Deinzer ,  Esther-Sabrina Platzer

发明人： Frank Deinzer ,  Esther-Sabrina Platzer

IPC分类号： G06K9/00 ,  A61B6/00 ,  A61B5/02 ,  G06F17/18

CPC分类号： G06T7/0012 ,  G06T2207/10116 ,  G06T2207/30104

摘要： The invention relates to a method for determining a probability distribution with local three-dimensional resolution for a substance in a vascular system. An acquisition time is assigned to a group of x-ray images showing a presence distribution with local 2D resolution for a substance in the vascular system at the acquisition time. A first preliminary presence probability distribution is determined using the x-ray images assigned to the acquisition time and a volume data set of the vascular system. A second preliminary presence probability distribution is determined using the presence probability distribution for the preceding acquisition time and a migration probability distribution with the substance migrating from first vascular locations to second vascular locations. A high individual probability to vascular locations is assigned if both preliminary presence probability distributions have a high probability value for the respective vascular location. Otherwise a lower and greater than zero individual probability is assigned.

摘要翻译： 本发明涉及用于确定血管系统中物质的局部三维分辨率的概率分布的方法。 将采集时间分配给一组X射线图像，其显示在采集时间内血管系统中物质的局部2D分辨率的存在分布。 使用分配给采集时间的X射线图像和血管系统的体积数据集来确定第一初步存在概率分布。 使用先前获取时间的存在概率分布和物质从第一血管位置迁移到第二血管位置的迁移概率分布来确定第二初步存在概率分布。 如果两个初步存在概率分布具有相应血管位置的高概率值，则分配血管位置的高个体概率。 否则分配较低且大于零的个人概率。

公开(公告)号：US07817772B2

公开(公告)日：2010-10-19

申请号：US12154310

申请日：2008-05-22

申请人： Frank Deinzer ,  Esther-Sabrina Platzer

发明人： Frank Deinzer ,  Esther-Sabrina Platzer

IPC分类号： A61B6/00

CPC分类号： G06T7/0012 ,  A61B6/507 ,  G06T2207/10116 ,  G06T2207/20224 ,  G06T2207/30104

摘要： A computer receives a volume data set describing a vascular system with local three-dimensional resolution and a temporal sequence of groups of x-ray images. An acquisition time is assigned to each group of x-ray images comprising at least one x-ray image. Each x-ray image shows an actual presence distribution with local two-dimensional resolution for a substance in the vascular system, as defined at the respective acquisition time. The computer uses an initial presence distribution with local three-dimensional resolution for the substance, as defined for a start time, to determine further presence distributions with local three-dimensional resolution for the substance automatically for determination times by iterative resolution of fluid dynamics movement equations, which are per se location-independent. It automatically corrects the further presence distributions, if their respective determination time corresponds to one of the acquisition times, based on the temporally corresponding group of x-ray images.

摘要翻译： 计算机接收描述具有局部三维分辨率和X射线图像组的时间序列的血管系统的体数据集。 将采集时间分配给包括至少一个x射线图像的每组X射线图像。 每个X射线图像显示了在各个采集时间定义的血管系统中物质的局部二维分辨率的实际存在分布。 计算机使用具有局部三维分辨率的初始存在分布，如为开始时间定义的物质，通过流体动力学运动方程的迭代分辨率自动确定物质的局部三维分辨率的进一步存在分布，用于确定时间 ，它们本身与位置无关。 如果它们各自的确定时间对应于其中一个采集时间，则基于时间上相应的X射线图像组，它自动地校正另外的存在分布。

公开(公告)号：US08244331B2

公开(公告)日：2012-08-14

申请号：US12229754

申请日：2008-08-26

申请人： Frank Deinzer ,  Esther-Sabrina Platzer ,  Matthias Wacker

发明人： Frank Deinzer ,  Esther-Sabrina Platzer ,  Matthias Wacker

IPC分类号： A61B6/00

CPC分类号： G01C1/00 ,  A61B6/481 ,  A61B6/504

摘要： The invention relates to a method and a device for determination of an optimum direction of projection or position for recording a number of two-dimensional projection images of an object of interest, with the two-dimensional projection images being recorded by rotation or translation of an imaging system around the object. Inventively the process is as follows: a) estimating a position of the object at a point in time; b) determining at least one optimum imaging view from which the optimum direction of projection and/or position is produced, for the position estimated under a) with the aid of previously determined measurement. Preferably the measurement is expressed as a function of a transformation which is described by a spatial object-imaging system relationship.

摘要翻译： 本发明涉及一种用于确定用于记录感兴趣对象的多个二维投影图像的投影或位置的最佳方向的方法和装置，其中通过旋转或平移来记录二维投影图像 成像系统周围的物体。 本发明的过程如下：a）在某个时间点估计物体的位置; b）根据先前确定的测量确定在a）下估计的位置的至少一个最佳成像视图，从该最佳成像视图产生投影和/或位置的最佳方向。 优选地，测量被表示为由空间物体成像系统关系描述的变换的函数。

公开(公告)号：US20090082990A1

公开(公告)日：2009-03-26

申请号：US12229754

申请日：2008-08-26

申请人： Frank Deinzer ,  Esther-Sabrina Platzer ,  Matthias Wacker

发明人： Frank Deinzer ,  Esther-Sabrina Platzer ,  Matthias Wacker

IPC分类号： G01C1/00

CPC分类号： G01C1/00 ,  A61B6/481 ,  A61B6/504

摘要： The invention relates to a method and a device for determination of an optimum direction of projection or position for recording a number of two-dimensional projection images of an object of interest, with the two-dimensional projection images being recorded by rotation or translation of an imaging system around the object. Inventively the process is as follows: a) estimating a position of the object at a point in time; b) determining at least one optimum imaging view from which the optimum direction of projection and/or position is produced, for the position estimated under a) with the aid of previously determined measurement. Preferably the measurement is expressed as a function of a transformation which is described by a spatial object-imaging system relationship.

摘要翻译： 本发明涉及一种用于确定用于记录感兴趣对象的多个二维投影图像的投影或位置的最佳方向的方法和装置，其中通过旋转或平移来记录二维投影图像 成像系统周围的物体。 本发明的过程如下：a）在某个时间点估计物体的位置; b）根据先前确定的测量确定在a）下估计的位置的至少一个最佳成像视图，从该最佳成像视图产生投影和/或位置的最佳方向。 优选地，测量被表示为由空间物体成像系统关系描述的变换的函数。

公开(公告)号：US20090074277A1

公开(公告)日：2009-03-19

申请号：US12283883

申请日：2008-09-16

申请人： Frank Deinzer ,  Esther-Sabrina Platzer

发明人： Frank Deinzer ,  Esther-Sabrina Platzer

IPC分类号： G06K9/00

CPC分类号： A61B90/36 ,  A61B2090/365 ,  G06T7/33 ,  G06T7/38 ,  G06T2207/10072 ,  G06T2207/10116 ,  G06T2207/30104

摘要： A three-dimensional volume data record contains a vascular tree. A two-dimensional projection image is an image of an actual fill state, to which the vascular tree is filled with a contrast agent at an acquisition time. The volume data record and the projection image are registered in relation to one another by means of the set of imaging parameters. A computation facility determines an expected target fill state, which describes which parts of the vascular tree should be filled with contrast agent at acquisition time in the three-dimensional volume data record. The computation facility determines the set of imaging parameters based on the target fill state and the projection image.

摘要翻译： 三维体积数据记录包含血管树。 二维投影图像是实际填充状态的图像，在采集时间，血管树用造影剂填充到该填充状态。 体积数据记录和投影图像通过一组成像参数相对于彼此登记。 计算设备确定期望的目标填充状态，该状态描述在三维体积数据记录中在采集时刻用造影剂填充维管树的哪些部分。 计算设备基于目标填充状态和投影图像确定成像参数集合。

公开(公告)号：US20080292047A1

公开(公告)日：2008-11-27

申请号：US12154310

申请日：2008-05-22

申请人： Frank Deinzer ,  Esther-Sabrina Platzer

发明人： Frank Deinzer ,  Esther-Sabrina Platzer

IPC分类号： A61B6/00

CPC分类号： G06T7/0012 ,  A61B6/507 ,  G06T2207/10116 ,  G06T2207/20224 ,  G06T2207/30104

摘要： A computer receives a volume data set describing a vascular system with local three-dimensional resolution and a temporal sequence of groups of x-ray images. An acquisition time is assigned to each group of x-ray images comprising at least one x-ray image. Each x-ray image shows an actual presence distribution with local two-dimensional resolution for a substance in the vascular system, as defined at the respective acquisition time. The computer uses an initial presence distribution with local three-dimensional resolution for the substance, as defined for a start time, to determine further presence distributions with local three-dimensional resolution for the substance automatically for determination times by iterative resolution of fluid dynamics movement equations, which are per se location-independent. It automatically corrects the further presence distributions, if their respective determination time corresponds to one of the acquisition times, based on the temporally corresponding group of x-ray images.

摘要翻译： 计算机接收描述具有局部三维分辨率和X射线图像组的时间序列的血管系统的体数据集。 将采集时间分配给包括至少一个x射线图像的每组X射线图像。 每个X射线图像显示了在各自的获取时间定义的血管系统中物质的局部二维分辨率的实际存在分布。 计算机使用具有局部三维分辨率的初始存在分布，如为开始时间定义的物质，通过流体动力学运动方程的迭代分辨率自动确定物质的局部三维分辨率的进一步存在分布，用于确定时间 ，它们本身与位置无关。 如果它们各自的确定时间对应于其中一个采集时间，则基于时间上相应的X射线图像组，它自动地校正另外的存在分布。