公开(公告)号：US20110085637A1

公开(公告)日：2011-04-14

申请号：US12902237

申请日：2010-10-12

申请人： Jan Boese ,  Frank Dennerlein ,  Holger Kunze

发明人： Jan Boese ,  Frank Dennerlein ,  Holger Kunze

IPC分类号： A61B6/03 ,  G06T17/00

CPC分类号： G06T11/006 ,  A61B6/027

摘要： A method for producing a 3D image dataset of an object with an imaging system having an x-ray source and an x-ray detector is provided. A series of two-dimensional arrays of cone beam data from the detector is acquired while the source moves along a substantially planar trajectory around the object. The trajectory is described by a series of source points serially numbered by a counter parameter. The cone beam data is differentiated with respect to the counter parameter at a fixed ray direction to produce a derivative of the cone beam data. The derivative is filtered with a Hilbert-like filter to produce filtered cone beam data. The acquired or the filtered cone beam data is multiplied with a redundancy weighting function. The cone beam data is back-projected to reconstruct a 3D image dataset.

摘要翻译： 提供了一种使用具有X射线源和X射线检测器的成像系统来生成物体的3D图像数据集的方法。 来自检测器的一系列锥形束数据的二维阵列被获取，同时源沿着物体周围的基本上平面的轨迹移动。 轨迹由一系列通过计数器参数串行编号的源点描述。 锥形束数据在固定的射线方向上相对于计数器参数微分，以产生锥形束数据的导数。 用希尔伯特滤波器滤波导数，以产生滤波的锥束数据。 所获取的或经滤波的锥束数据与冗余加权函数相乘。 锥形束数据被反投影以重建3D图像数据集。

公开(公告)号：US09153411B2

公开(公告)日：2015-10-06

申请号：US13564909

申请日：2012-08-02

申请人： Jan Boese ,  Frank Dennerlein ,  Thomas Redel

发明人： Jan Boese ,  Frank Dennerlein ,  Thomas Redel

IPC分类号： H01J35/00 ,  H01J35/30 ,  A61B6/03 ,  A61B6/00

CPC分类号： H01J35/30 ,  A61B6/03 ,  A61B6/4435

摘要： An X-ray imaging apparatus has at least one X-ray image system rotatable about an examination volume. The X-ray image system is controlled such that during a continuous rotation of the system, at least one 2D projection image is recorded. An image generation facility generates the 2D projection image from the measured data. The X-ray source includes an X-ray focus which can be changed in terms of position, which, during the recording of the 2D projection image, moves counter to the direction of rotation of the X-ray image system such that its spatial position in a fixed coordinate system does not change. The X-ray detector records several 2D partial images, from which the 2D projection image is calculated with the rotational movement of the X-ray detector being at least approximately compensated. The 2D projection images have significantly reduced image blur.

摘要翻译： X射线成像装置具有能够围绕检查体积旋转的至少一个X射线图像系统。 控制X射线图像系统，使得在系统的连续旋转期间，记录至少一个2D投影图像。 图像生成设备根据测量数据生成2D投影图像。 X射线源包括可以在2D投影图像的记录期间相对于X射线图像系统的旋转方向移动的位置方面改变的X射线焦点，使得其X射线焦点的空间位置 在固定的坐标系中不改变。 X射线检测器记录几个2D部分图像，由X射线检测器的旋转运动至少近似地补偿2D计算图像。 2D投影图像显着减少图像模糊。

公开(公告)号：US08750582B2

公开(公告)日：2014-06-10

申请号：US13101208

申请日：2011-05-05

申请人： Jan Boese ,  Anja Borsdorf ,  Frank Dennerlein ,  Holger Kunze

发明人： Jan Boese ,  Anja Borsdorf ,  Frank Dennerlein ,  Holger Kunze

IPC分类号： G06K9/00

CPC分类号： G06T11/005 ,  A61B6/4441

摘要： A method for recording and reconstructing a three-dimensional image dataset is proposed. A plurality of projection images are acquired under different recording geometries in relation to an object to be recorded by an X-ray apparatus, in particular a C-arm X-ray apparatus. At least two projection images are recorded for at least one recording geometry, in particular for every recording geometry. The three-dimensional image dataset is reconstructed from the project images.

摘要翻译： 提出了一种用于记录和重建三维图像数据集的方法。 相对于由X射线装置，特别是C臂X射线装置记录的物体，在不同的记录几何形状下获取多个投影图像。 对于至少一个记录几何形状记录至少两个投影图像，特别是对于每个记录几何形状。 从项目图像重建三维图像数据集。

公开(公告)号：US20100329534A1

公开(公告)日：2010-12-30

申请号：US12825721

申请日：2010-06-29

申请人： Volker Biermann ,  Jan Boese ,  Georg Buchheim ,  Frank Dennerlein ,  Michael Fuhrmann ,  Holger Kunze ,  Alois Nöttling ,  Thomas Redel

发明人： Volker Biermann ,  Jan Boese ,  Georg Buchheim ,  Frank Dennerlein ,  Michael Fuhrmann ,  Holger Kunze ,  Alois Nöttling ,  Thomas Redel

IPC分类号： G06T7/00 ,  H05G1/02

CPC分类号： A61B6/466 ,  A61B6/027 ,  A61B6/4441

摘要： A method and an X-ray image acquisition system for the acquisition of X-ray images of a region of interest of an examination object from a multiplicity of angles of view for an 3-D image reconstruction are provided. The X-ray image acquisition system comprises an X-ray focus and an X-ray detector, which can be separately positioned and oriented relative to each other. The X-ray focus is moved along a combination of straight line segments and/or arc segments for the acquisition of X-ray images. The X-ray detector is oriented relative to the X-ray focus and moved in such a way that the region of interest is projected completely onto the X-ray detector upon each image acquisition.

摘要翻译： 提供了一种用于从3-D图像重构的多个视角获取检查对象的感兴趣区域的X射线图像的方法和X射线图像获取系统。 X射线图像采集系统包括X射线焦点和X射线检测器，其可以相对于彼此分开定位和取向。 X射线焦点沿着直线段和/或弧段的组合移动以获取X射线图像。 X射线检测器相对于X射线焦点定向并且以这样的方式移动，使得在每次图像采集时，感兴趣的区域完全投影到X射线检测器上。

公开(公告)号：US08559591B2

公开(公告)日：2013-10-15

申请号：US12891873

申请日：2010-09-28

申请人： Jan Boese ,  Frank Dennerlein

发明人： Jan Boese ,  Frank Dennerlein

IPC分类号： G01N23/00

CPC分类号： A61B6/466 ,  A61B6/032 ,  A61B6/4007 ,  A61B6/4014 ,  A61B6/503 ,  A61B6/541 ,  H01J2235/062

摘要： A method for recording a projection dataset of a object to be recorded using a plurality of X-ray sources is provided, which X-ray sources are spaced apart from one another on average by an angle α relative to an isocenter. A plurality of projection images from different recording directions are recorded in succession while activating the corresponding X-ray sources. Two X-ray sources are activated in succession having a spacing of at least 2 α relative to the isocenter.

摘要翻译： 提供了使用多个X射线源记录要记录的对象的投影数据集的方法，其中X射线源相对于等角点平均间隔一个角度α。 在激活对应的X射线源的同时，连续地记录来自不同记录方向的多个投影图像。 两个X射线源相继地相对于等角点具有至少2个α的间距而被激活。

公开(公告)号：US20110268341A1

公开(公告)日：2011-11-03

申请号：US13094423

申请日：2011-04-26

申请人： Jan Boese ,  Frank Dennerlein

发明人： Jan Boese ,  Frank Dennerlein

IPC分类号： G06K9/00 ,  G01N23/04 ,  B82Y99/00

CPC分类号： A61B6/4007 ,  A61B6/4021 ,  A61B6/5205 ,  A61B2090/3764 ,  G06T11/006 ,  G06T2211/412 ,  H01J35/065 ,  H01J2201/30469 ,  H01J2235/062 ,  H01J2235/068

摘要： A method for reconstruction of an actual three-dimensional image dataset of an object during a monitoring process is proposed. Two-dimensional. X-ray projection images which correspond to a recording geometry are continuously recorded from different projection angles. The three-dimensional image dataset are reconstructed from a first number of these projection images, especially by a back projection method. The proportion of the oldest projection image contained in the current three-dimensional image dataset is removed from the three-dimensional image dataset and the proportion of the actual projection image is inserted in the three-dimensional image dataset after each recording of the actual projection image.

摘要翻译： 提出了一种用于在监视过程中重建对象的实际三维图像数据集的方法。 二维。 对应于记录几何的X射线投影图像从不同的投影角度连续记录。 从第一数量的这些投影图像，特别是通过反投影方法重构三维图像数据集。 将包含在当前三维图像数据集中的最旧的投影图像的比例从三维图像数据集中去除，并且在每次记录实际投影图像之后将实际投影图像的比例插入到三维图像数据集中 。

公开(公告)号：US08094773B2

公开(公告)日：2012-01-10

申请号：US12890779

申请日：2010-09-27

申请人： Jan Boese ,  Frank Dennerlein ,  Benno Heigl ,  Holger Kunze ,  Michael Maschke

发明人： Jan Boese ,  Frank Dennerlein ,  Benno Heigl ,  Holger Kunze ,  Michael Maschke

IPC分类号： A61B6/00

CPC分类号： A61B6/032 ,  A61B6/025 ,  A61B6/027 ,  A61B6/481 ,  A61B6/504

摘要： A method is provided for quickly and simply generating a three-dimensional tomographic x-ray imaging. Tomosynthetic projection images are recorded from different recording angles along a tomosynthetic scanning path and three-dimensional image data is reconstructed from the tomosynthetic projection images. The tomosynthetic projection images are recorded by a tomosynthetic x-ray device with a plurality of x-ray sources arranged on a holder at a distance from one another. Each projection image is recorded by a different x-ray source being fixed in one place during recording the tomosynthetic projection images.

摘要翻译： 提供了一种用于快速简单地生成三维断层X射线成像的方法。 从断层合成扫描路径记录不同记录角度的神经合成投影图像，并从断层合成投影图像重建三维图像数据。 断层合成投影图像由具有多个X射线源的断层合成X射线装置记录，所述x射线源彼此间隔一定距离地布置在保持器上。 在记录断层合成投影图像期间，通过将不同的X射线源固定在一个位置来记录每个投影图像。

公开(公告)号：US20110075809A1

公开(公告)日：2011-03-31

申请号：US12891873

申请日：2010-09-28

申请人： Jan Boese ,  Frank Dennerlein

发明人： Jan Boese ,  Frank Dennerlein

IPC分类号： H05G1/70

CPC分类号： A61B6/466 ,  A61B6/032 ,  A61B6/4007 ,  A61B6/4014 ,  A61B6/503 ,  A61B6/541 ,  H01J2235/062

摘要： A method for recording a projection dataset of a object to be recorded using a plurality of X-ray sources is provided, which X-ray sources are spaced apart from one another on average by an angle α relative to an isocenter. A plurality of projection images from different recording directions are recorded in succession while activating the corresponding X-ray sources. Two X-ray sources are activated in succession having a spacing of at least 2 α relative to the isocenter.

摘要翻译： 提供了使用多个X射线源记录要记录的对象的投影数据集的方法，其中X射线源相对于等角点平均间隔一个角度α。 在激活对应的X射线源的同时，连续地记录来自不同记录方向的多个投影图像。 两个X射线源相对于等角点相继间隔至少为2个α。

公开(公告)号：US08848999B2

公开(公告)日：2014-09-30

申请号：US13094423

申请日：2011-04-26

申请人： Jan Boese ,  Frank Dennerlein

发明人： Jan Boese ,  Frank Dennerlein

IPC分类号： G06K9/00 ,  A61B6/00 ,  H01J35/06 ,  G06T11/00 ,  A61B19/00

CPC分类号： A61B6/4007 ,  A61B6/4021 ,  A61B6/5205 ,  A61B2090/3764 ,  G06T11/006 ,  G06T2211/412 ,  H01J35/065 ,  H01J2201/30469 ,  H01J2235/062 ,  H01J2235/068

摘要： A method for reconstruction of an actual three-dimensional image dataset of an object during a monitoring process is proposed. Two-dimensional X-ray projection images which correspond to a recording geometry are continuously recorded from different projection angles. The three-dimensional image dataset are reconstructed from a first number of these projection images, especially by a back projection method. The proportion of the oldest projection image contained in the current three-dimensional image dataset is removed from the three-dimensional image dataset and the proportion of the actual projection image is inserted in the three-dimensional image dataset after each recording of the actual projection image.

摘要翻译： 提出了一种用于在监视过程中重建对象的实际三维图像数据集的方法。 从不同的投影角度连续地记录与记录几何形状对应的二维X射线投影图像。 从第一数量的这些投影图像，特别是通过反投影方法重构三维图像数据集。 将包含在当前三维图像数据集中的最旧的投影图像的比例从三维图像数据集中去除，并且在每次记录实际投影图像之后将实际投影图像的比例插入到三维图像数据集中 。

公开(公告)号：US08218717B2

公开(公告)日：2012-07-10

申请号：US12902237

申请日：2010-10-12

申请人： Jan Boese ,  Frank Dennerlein ,  Holger Kunze

发明人： Jan Boese ,  Frank Dennerlein ,  Holger Kunze

IPC分类号： A61B6/00

CPC分类号： G06T11/006 ,  A61B6/027

摘要： A method for producing a 3D image dataset of an object with an imaging system having an x-ray source and an x-ray detector is provided. A series of two-dimensional arrays of cone beam data from the detector is acquired while the source moves along a substantially planar trajectory around the object. The trajectory is described by a series of source points serially numbered by a counter parameter. The cone beam data is differentiated with respect to the counter parameter at a fixed ray direction to produce a derivative of the cone beam data. The derivative is filtered with a Hilbert-like filter to produce filtered cone beam data. The acquired or the filtered cone beam data is multiplied with a redundancy weighting function. The cone beam data is back-projected to reconstruct a 3D image dataset.

摘要翻译： 提供了一种使用具有X射线源和X射线检测器的成像系统来生成物体的3D图像数据集的方法。 来自检测器的一系列锥形束数据的二维阵列被获取，同时源沿着围绕物体的基本上平面的轨迹移动。 轨迹由一系列通过计数器参数串行编号的源点描述。 锥形束数据在固定的射线方向上相对于计数器参数微分，以产生锥形束数据的导数。 用希尔伯特滤波器滤波导数，以产生滤波的锥束数据。 所获取的或经滤波的锥束数据与冗余加权函数相乘。 锥形束数据被反投影以重建3D图像数据集。