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1.发明申请METHOD FOR GENERATING A FOUR-DIMENSIONAL REPRESENTATION OF A TARGET REGION OF A BODY, WHICH TARGET REGION IS SUBJECT TO PERIODIC MOTION 有权用于产生目标区域的四维区域的四维表示的方法，其目标区域受定期运动的影响公开(公告)号：US20120280978A1
公开(公告)日：2012-11-08
申请号：US13314445
申请日：2011-12-08
CPC分类号： G06T13/20 , A61B5/0044 , A61B5/0402 , A61B5/1107 , A61B5/1128 , A61B5/7289 , G06T11/005 , G06T2210/41 , G06T2211/412
摘要： A method for generating a four-dimensional representation of a periodically moving target region is proposed. A motion-compensated three-dimensional image dataset is determined from two-dimensional projection images recorded from different projection directions. Estimation parameters that describe a non-periodic motion and are derived from a motion model formulated independently of the phase of the periodic motion with respect to the recording instants of the projection images are determined from the projection images, such that the three-dimensional image dataset represents a static reconstruction based on all projection images for a specific instant. The three-dimensional image dataset is animated from the estimation parameters used in its reconstruction. The motion information that is missing in the estimation parameters due to the two-dimensionality of the projection images is additionally determined using a boundary condition that describes the periodicity of the motion, and used for the animation.
摘要翻译： 提出了一种用于产生周期性移动目标区域的四维表示的方法。 从不同投影方向记录的二维投影图像确定运动补偿三维图像数据集。 从投影图像确定描述非周期性运动并且从与投影图像的记录时刻独立于周期性运动的相位配置的运动模型导出的估计参数，使得三维图像数据集 表示基于特定时刻的所有投影图像的静态重建。 三维图像数据集是从其重建中使用的估计参数进行动画化的。 使用描述运动的周期性并用于动画的边界条件另外确定由于投影图像的二维性而在估计参数中丢失的运动信息。
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2.发明申请Method for three-dimensional image reconstruction of a dynamically moved object from data of an imaging device as well as associated imaging device 审中-公开用于从成像设备的数据以及相关联的成像设备的动态移动的对象的三维图像重建的方法公开(公告)号：US20090202034A1
公开(公告)日：2009-08-13
申请号：US12321909
申请日：2009-01-27
CPC分类号： G06T11/006 , G06T2211/412
摘要： The invention relates to a method for three-dimensional image reconstruction of a dynamically moved object from projection data of an imaging device comprising: a) determining a reference volume from the projection data which simulates a similar static object instead of the dynamically moved object; b) assigning the projection data to at least two disjoint consistent subsets, with a volume part reconstruction of the dynamically moved object being undertaken for each subset from projection data assigned to the subsets; c) applying a transformation to the respective volume part reconstructions representing a dynamic movement of the object; d) comparing the volumes of the transformed part reconstructions with a corresponding part of the reference volume, whereby, depending on the comparison, result step c) may be at least partly repeated; and e) summing the volume part reconstructions resulting from step c) and d) to form an overall three-dimensional image reconstruction.
摘要翻译： 本发明涉及一种用于成像设备的投影数据的动态移动对象的三维图像重构的方法，包括：a）从模拟类似静态对象而不是动态移动对象的投影数据确定参考体积; b）将投影数据分配给至少两个不相交的一致性子集，其中通过分配给子集的投影数据对每个子集进行动态移动的对象的体积部分重建; c）对表示所述对象的动态移动的相应体积部分重建应用变换; d）将经转换的部分重建的体积与参考体积的相应部分进行比较，由此，根据比较，结果步骤c）可以至少部分地重复; 以及e）将由步骤c）和d）得到的体积部分重建相加以形成整体三维图像重建。
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3.发明申请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：US20090214098A1
公开(公告)日：2009-08-27
申请号：US12378793
申请日：2009-02-19
IPC分类号： G06K9/00
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，仅选择这些投影图像，其最小化门控的相邻投影角之间的路径或加权边缘之和。
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4.发明授权Method for generating a four-dimensional representation of a target region of a body, which target region is subject to periodic motion 有权用于生成身体的目标区域的四维表示的方法，该目标区域经受周期性运动公开(公告)号：US08704825B2
公开(公告)日：2014-04-22
申请号：US13314445
申请日：2011-12-08
IPC分类号： G06T15/00
CPC分类号： G06T13/20 , A61B5/0044 , A61B5/0402 , A61B5/1107 , A61B5/1128 , A61B5/7289 , G06T11/005 , G06T2210/41 , G06T2211/412
摘要： A method for generating a four-dimensional representation of a periodically moving target region is proposed. A motion-compensated three-dimensional image dataset is determined from two-dimensional projection images recorded from different projection directions. Estimation parameters that describe a non-periodic motion and are derived from a motion model formulated independently of the phase of the periodic motion with respect to the recording instants of the projection images are determined from the projection images, such that the three-dimensional image dataset represents a static reconstruction based on all projection images for a specific instant. The three-dimensional image dataset is animated from the estimation parameters used in its reconstruction. The motion information that is missing in the estimation parameters due to the two-dimensionality of the projection images is additionally determined using a boundary condition that describes the periodicity of the motion, and used for the animation.
摘要翻译： 提出了一种用于产生周期性移动目标区域的四维表示的方法。 从不同投影方向记录的二维投影图像确定运动补偿三维图像数据集。 从投影图像确定描述非周期性运动并且从与投影图像的记录时刻独立于周期性运动的相位配置的运动模型导出的估计参数，使得三维图像数据集 表示基于特定时刻的所有投影图像的静态重建。 三维图像数据集是从其重建中使用的估计参数进行动画化的。 使用描述运动的周期性并用于动画的边界条件另外确定由于投影图像的二维性而在估计参数中丢失的运动信息。
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公开(公告)号：US20180218521A1
公开(公告)日：2018-08-02
申请号：US15874998
申请日：2018-01-19
CPC分类号： G06T11/206 , A61B6/465 , A61B6/481 , A61B6/504 , G06T11/008 , G06T2200/24 , G06T2210/41 , G06T2211/404
摘要： A method is provided for image processing an angiography data set of a capture region of interest of a patient's vascular system. The method includes establishing a static time parameter set from the angiography data set, wherein the static time parameter set includes time parameters and characterizes the time profile of the contrast agent concentration for picture elements of the capture region described in the image data subsets; establishing a series of mask data sets by picture element-by-picture element application of a window function having a window width of greater than zero; selecting a subinterval in the parameter space covered by the time parameters for each instant of the series to the static time parameter set; and establishing a series of static display data sets by applying the mask data sets to a static vessel data set, which shows a vascular system perfused by the contrast agent in the capture region and which underlies or is derived from the angiography data set.
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6.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
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。
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公开(公告)号：US20180199905A1
公开(公告)日：2018-07-19
申请号：US15866962
申请日：2018-01-10
CPC分类号： A61B6/5217 , A61B6/4441 , A61B6/481 , A61B6/504 , G06T5/50 , G06T7/0016 , G06T11/008 , G06T2207/10076 , G06T2207/10116 , G06T2207/20224 , G06T2207/30101 , G06T2211/404
摘要： Vessel overlap artifacts are reduced in a four-dimensional angiography data set a blood vessel system of a patient with a contrast medium. A three-dimensional vessel data set of the blood vessel system is reconstructed from two-dimensional projection images of digital subtraction angiography showing the blood vessel system, determined by multiplicative back projection of the projection images into the vessel data set or a base data set of the four-dimensional angiography data set derived vessel data set. A plausibility check is performed with vessel sections displayed as filled with contrast medium in partial image data sets of the angiography data set assigned to all individual, and different instants of the covered period are checked against a plausibility check criterion checking for a contrast medium-filled connection to an admissible source point, after which a corrected partial image data set is determined containing only vessel sections satisfying the plausibility check criterion.
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公开(公告)号：US20130004052A1
公开(公告)日：2013-01-03
申请号：US13533314
申请日：2012-06-26
申请人： Mingqing Chen , Yefeng Zheng , Kerstin Mueller , Christopher Rohkohl , Günter Lauritsch , Jan Boese , Gareth Funka-Lea , Dorin Comaniciu
发明人： Mingqing Chen , Yefeng Zheng , Kerstin Mueller , Christopher Rohkohl , Günter Lauritsch , Jan Boese , Gareth Funka-Lea , Dorin Comaniciu
IPC分类号： G06K9/00
CPC分类号： G06T7/251 , G06T11/005 , G06T2207/10081 , G06T2207/30048 , G06T2211/412
摘要： Background information is subtracted from projection data in medical diagnostic imaging. The background is removed using data acquired in a single rotational sweep of a C-arm. The removal may be by masking out a target, leaving the background, in the data as constructed into a volume. For subtraction, the masked background information is projected to a plane and subtracted from the data representing the plane.
摘要翻译： 医疗诊断成像中的投影数据中减去背景信息。 使用在C臂的单次旋转扫描中获取的数据来去除背景。 删除可能是通过将构建成一个卷的数据中的一个目标掩盖掉，留下背景。 对于减法，将掩蔽的背景信息投影到平面，并从表示平面的数据中减去。
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9.发明授权Method for supplying a 3D X-ray image data record for a moving object with highly absorbent material 有权用于为具有高吸收性材料的移动物体提供3D X射线图像数据记录的方法公开(公告)号：US08634620B2
公开(公告)日：2014-01-21
申请号：US13456480
申请日：2012-04-26
IPC分类号： G06K9/00
CPC分类号： A61B6/503 , A61B5/7207 , A61B6/5223 , A61B6/5258 , A61B6/5264 , G06T11/005 , G06T11/006 , G06T2211/412
摘要： A method is provided for supplying a 3D X-ray image data record for a moving object. The said object contains highly X-ray radiation-absorbent material. A correction is made in respect of the highly absorbent material in 2D forward projections obtained from a 3D-X-ray image data record. The forward projections are calculated using 3D motion fields, which are derived from original 2D X-ray image data records.
摘要翻译： 提供了一种用于为运动物体提供3D X射线图像数据记录的方法。 所述物体包含高X射线吸收材料。 对从3D-X射线图像数据记录获得的2D向前投影中的高吸收性材料进行校正。 使用从原始2D X射线图像数据记录导出的3D运动场来计算向前投影。
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公开(公告)号：US20130004040A1
公开(公告)日：2013-01-03
申请号：US13533234
申请日：2012-06-26
申请人： Mingqing Chen , Yefeng Zheng , Kerstin Mueller , Christopher Rohkohl , Günter Lauritsch , Jan Boese , Gareth Funka-Lea , Dorin Comaniciu
发明人： Mingqing Chen , Yefeng Zheng , Kerstin Mueller , Christopher Rohkohl , Günter Lauritsch , Jan Boese , Gareth Funka-Lea , Dorin Comaniciu
IPC分类号： G06K9/68
CPC分类号： G06T7/251 , G06T11/005 , G06T2207/10081 , G06T2207/30048 , G06T2211/412
摘要： The left ventricle epicardium is estimated in medical diagnostic imaging. C-arm x-ray data is used to detect an endocardium at different phases. The detected endocardium at the different phases is compared to sample endocardiums at different phases. The sample endocardiums have corresponding sample epicadriums. The transformation between the most similar sample endocardium or endocardiums over time and the detected endocardium over time is applied to the corresponding sample epicardium or epicardiums. The transformed sample epicardium over time is the estimated epicardium over time for the C-arm x-ray data.
摘要翻译： 估计左心室心外膜在医学诊断成像中。 C臂X射线数据用于检测不同阶段的心内膜。 将检测到的不同阶段的心内膜与不同阶段的样品心内膜进行比较。 样品心内膜具有相应的样品epicadrium。 随着时间的推移，最相似的样品心内膜或心内膜与随时间的检测到的心内膜之间的转化被应用于相应的样品心外膜或心外膜。 随着时间的推移，转化的样品心外膜随着时间的推移，C-arm x射线数据的估计心外膜。
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