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    Determining a Three-dimensional Model Dataset of a Blood Vessel System with at least One Vessel Segment
    2.
    发明申请
    Determining a Three-dimensional Model Dataset of a Blood Vessel System with at least One Vessel Segment 有权
    确定具有至少一个血管段的血管系统的三维模型数据集

    公开(公告)号：US20160012636A1

    公开(公告)日：2016-01-14

    申请号：US14789413

    申请日：2015-07-01

    申请人： Günter Lauritsch ,  Thomas Redel ,  Christopher Rohkohl ,  Michael Scheuering

    发明人： Günter Lauritsch ,  Thomas Redel ,  Christopher Rohkohl ,  Michael Scheuering

    IPC分类号： G06T17/10 ,  A61B6/03 ,  A61B6/00 ,  G06T11/60

    CPC分类号： A61B6/504 ,  A61B6/032 ,  A61B6/4441 ,  A61B6/5205 ,  A61B6/5288 ,  A61B6/5294 ,  G06T11/60 ,  G06T17/00 ,  G06T2200/04 ,  G06T2210/41

    摘要： A three-dimensional model dataset of a blood vessel system of a patient including at least one the vessel system is determined from a number of projection images, which have been recorded from different recording angles, of the blood vessel system The projection images are divided up into image areas each containing at least one pixel. A feature vector is determined for each of the image areas. Classification information, which describes how the respective image area belongs or does not belong to a vessel segment of the blood vessel system defined in accordance with anatomical specification data, is defined for each of the image areas by applying a classification function to the feature vector assigned to the image area. The classification function has been trained by training data records annotated with classification information obtained from at least one person other than the patient. The blood vessel system in the projection images is segmented by grouping image areas with the same classification information. The three-dimensional model dataset is calculated as a function of the segmented projection images and the classification information.

    摘要翻译： 包括至少一个血管系统的患者的血管系统的三维模型数据集是从血管系统的不同记录角度记录的多个投影图像确定的。将投影图像分割 到每个包含至少一个像素的图像区域中。 为每个图像区域确定特征向量。 通过对分配的特征矢量应用分类函数，对每个图像区域分别描述各个图像区域属于或不属于根据解剖规范数据定义的血管系统的血管段的分类信息 到图像区域。 分类功能已经通过训练用从患者以外的至少一个人获得的分类信息注释的数据记录来训练。 投影图像中的血管系统通过对具有相同分类信息的图像区域进行分组。 三维模型数据集被计算为分段投影图像和分类信息的函数。

    3D X-ray imaging of coronary vessels with ECG gating and motion correction
    3.
    发明授权
    3D X-ray imaging of coronary vessels with ECG gating and motion correction 有权
    冠脉血管的3D X线成像与ECG门控和运动校正

    公开(公告)号：US09013471B2

    公开(公告)日：2015-04-21

    申请号：US13152367

    申请日：2011-06-03

    申请人： Günter Lauritsch ,  Christopher Rohkohl

    发明人： Günter Lauritsch ,  Christopher Rohkohl

    IPC分类号： G06T15/00 ,  A61B6/00 ,  G06T11/00

    CPC分类号： A61B6/504 ,  A61B6/4441 ,  A61B6/4458 ,  A61B6/5264 ,  A61B6/5288 ,  A61B6/541 ,  G06T11/005 ,  G06T2211/412 ,  G06T2211/424

    摘要： A method for three-dimensional visualization of a moving structure by a rotation angiography method is described. A series of projection images is recorded by an image acquisition unit from different recording angles during a rotation cycle. A three-dimensional image data can be reconstructed from the projection images. A continuous rotation cycle is proposed to be performed with simultaneous recording of at least one ECG. A three-dimensional reconstructed reference image is generated through a first correction of the motion of the moving structure by affine transformations. A three-dimensional image data of the moving structure is reconstructed from the data acquired in the continuous rotation cycle when using the reconstructed reference image while performing an estimation and correction of the motion by elastic deformations.

    摘要翻译： 描述了通过旋转血管造影方法对运动结构进行三维可视化的方法。 在旋转周期期间，图像采集单元从不同的记录角度记录一系列投影图像。 可以从投影图像重建三维图像数据。 提出连续旋转周期，同时记录至少一个ECG。 通过仿射变换对运动结构的运动进行第一次校正来生成三维重建参考图像。 当通过弹性变形执行运动的估计和校正时，在使用重建的参考图像时，从连续旋转周期中获取的数据重构运动结构的三维图像数据。

    3D X-RAY IMAGING OF CORONARY VESSELS WITH ECG GATING AND MOTION CORRECTION
    7.
    发明申请
    3D X-RAY IMAGING OF CORONARY VESSELS WITH ECG GATING AND MOTION CORRECTION 有权
    冠状动脉的3D X射线成像与心电图和运动校正

    公开(公告)号：US20110298793A1

    公开(公告)日：2011-12-08

    申请号：US13152367

    申请日：2011-06-03

    申请人： Günter Lauritsch ,  Christopher Rohkohl

    发明人： Günter Lauritsch ,  Christopher Rohkohl

    IPC分类号： G06T15/00

    CPC分类号： A61B6/504 ,  A61B6/4441 ,  A61B6/4458 ,  A61B6/5264 ,  A61B6/5288 ,  A61B6/541 ,  G06T11/005 ,  G06T2211/412 ,  G06T2211/424

    摘要： A method for three-dimensional visualization of a moving structure by a rotation angiography method is described. A series of projection images is recorded by an image acquisition unit from different recording angles during a rotation cycle. A three-dimensional image data can be reconstructed from the projection images. A continuous rotation cycle is proposed to be performed with simultaneous recording of at least one ECG. A three-dimensional reconstructed reference image is generated through a first correction of the motion of the moving structure by affine transformations. A three-dimensional image data of the moving structure is reconstructed from the data acquired in the continuous rotation cycle when using the reconstructed reference image while performing an estimation and correction of the motion by elastic deformations.

    摘要翻译： 描述了通过旋转血管造影方法对运动结构进行三维可视化的方法。 在旋转周期期间，图像采集单元从不同的记录角度记录一系列投影图像。 可以从投影图像重建三维图像数据。 提出连续旋转周期，同时记录至少一个ECG。 通过仿射变换对运动结构的运动进行第一次校正来生成三维重建参考图像。 当通过弹性变形执行运动的估计和校正时，在使用重建的参考图像时，从连续旋转周期中获取的数据重构运动结构的三维图像数据。

    THREE-DIMENSIONAL X-RAY IMAGING
    8.
    发明申请
    THREE-DIMENSIONAL X-RAY IMAGING 有权
    三维X射线成像

    公开(公告)号：US20150036905A1

    公开(公告)日：2015-02-05

    申请号：US13959011

    申请日：2013-08-05

    申请人： Kerstin Mueller ,  Christopher Rohkohl ,  Günter Lauritsch ,  Chris Schwemmer

    发明人： Kerstin Mueller ,  Christopher Rohkohl ,  Günter Lauritsch ,  Chris Schwemmer

    IPC分类号： G06T11/00 ,  G06T15/08 ,  A61B6/02

    CPC分类号： G06T15/08 ,  G06T11/005 ,  G06T11/006 ,  G06T2211/412

    摘要： A 3D result image of an object is reconstructed from a set of X-ray two-dimensional projections of the object. A 3D reference image of the object is reconstructed by employing a compressed sensing technique based on at least some of the 2D projections at a reference motion state of the object. By employing an algebraic and/or analytic reconstruction technique, 3D intermediate images are reconstructed for various motion states of the object. The 3D intermediate images are registered with the 3D reference image to obtain spatial transformations for the various motion states of the object. Based on the spatial transformations, the 3D intermediate images are transformed to a joint phase and combined to obtain the 3D result image.

    摘要翻译： 从对象的一组X射线二维投影重建对象的3D结果图像。 通过使用基于对象的参考运动状态下的至少一些2D投影的压缩感测技术，来重建对象的3D参考图像。 通过采用代数和/或分析重建技术，为对象的各种运动状态重建3D中间图像。 3D中间图像被注册到3D参考图像以获得用于对象的各种运动状态的空间变换。 基于空间变换，将3D中间图像转换为联合相位并进行组合以获得3D结果图像。

    Method for three-dimensional presentation of a moved structure using a tomographic method
    9.
    发明授权
    Method for three-dimensional presentation of a moved structure using a tomographic method 有权
    使用断层摄影法对移动结构进行三维显示的方法

    公开(公告)号：US08183529B2

    公开(公告)日：2012-05-22

    申请号：US12378793

    申请日：2009-02-19

    申请人： Joachim Hornegger ,  Günter Lauritsch ,  Marcus Prümmer ,  Christopher Rohkohl

    发明人： Joachim Hornegger ,  Günter Lauritsch ,  Marcus Prümmer ,  Christopher Rohkohl

    IPC分类号： G01T1/20 ,  G06K9/00 ,  A61N5/10

    CPC分类号： A61B6/032 ,  A61B6/4441 ,  A61B6/466 ,  G06T11/005 ,  G06T2211/412

    摘要： The invention relates to a method for three-dimensional presentation of a moved structure using a tomographic method, in which a plurality of projection images are recorded from different imaging angles between a start angle with a start node point and an end angle with an end node point by an imaging unit during a number of rotation passes, with three-dimensional image data being able to be reconstructed from the projection images, with the projection images being spaced by a path or an edge. For determining the three-dimensional presentation for each angle of projection only those projection images are selected which minimize the sum of the paths or weighted edges between adjacent projection angles for a gating.

    摘要翻译： 本发明涉及一种使用断层摄影方法对移动结构进行三维呈现的方法，其中从与起点节点的开始角度与终端节点的终止角度之间的不同成像角度记录多个投影图像 在多次旋转通过期间由成像单元指向，其中三维图像数据能够从投影图像重建，其中投影图像被路径或边缘间隔开。 为了确定每个投影角度的三维呈现，仅选择那些最小化用于门控的相邻投影角之间的路径或加权边缘之和的投影图像。