公开(公告)号：US08103075B2

公开(公告)日：2012-01-24

申请号：US12070884

申请日：2008-02-21

申请人： Jan Boese ,  Joachim Hornegger ,  Günter Lauritsch ,  Marcus Prümmer

发明人： Jan Boese ,  Joachim Hornegger ,  Günter Lauritsch ,  Marcus Prümmer

IPC分类号： G06K9/00

CPC分类号： G06T19/00 ,  A61B6/4441 ,  A61B6/486 ,  A61B6/503 ,  A61B6/5211 ,  A61B6/5264 ,  A61B6/5288 ,  G06T7/30 ,  G06T2207/10072 ,  G06T2207/10116 ,  G06T2207/10124 ,  G06T2207/30048 ,  G06T2210/41

摘要： The invention relates to the use of 2D projection images which belong to a specific common heart phase. A 3D image data set can be used to generate a reference projection image for the same projection angle for each of the 2D projection images and a differential image can be derived from the reference projection image and 2D projection image. The differential images are back-projected and combined in one 3D differential image data set and, by using this, a deformed 3D image data set is obtained from the previously recorded 3D image data set. Iterations guarantee that the deformed 3D image data set ensues with the smallest possible distance from the 2D projection images for the existing common heart phase. Finally, a 3D image data set is available for a different heart phase other than the reference heart phase and the possibilities for imaging a patient's heart are extended.

摘要翻译： 本发明涉及属于特定共同心脏相位的二维投影图像的应用。 可以使用3D图像数据集来为每个2D投影图像生成用于相同投影角的参考投影图像，并且可以从参考投影图像和2D投影图像导出差分图像。 差分图像被反投影并组合在一个3D差分图像数据集中，并且通过使用它，从先前记录的3D图像数据集获得变形的3D图像数据集。 迭代保证变形的3D图像数据集随着现有共同心脏相位的2D投影图像的最小可能距离而发生。 最后，3D图像数据集可用于除参考心脏相以外的不同心脏相位，并且延长了对患者心脏进行成像的可能性。

公开(公告)号：US08027526B2

公开(公告)日：2011-09-27

申请号：US11980229

申请日：2007-10-30

申请人： Jan Boese ,  Joachim Hornegger ,  Günter Lauritsch ,  Marcus Prümmer

发明人： Jan Boese ,  Joachim Hornegger ,  Günter Lauritsch ,  Marcus Prümmer

IPC分类号： A61B6/03

CPC分类号： G06T7/20 ,  A61B5/7289 ,  A61B6/032 ,  A61B6/466 ,  A61B6/503 ,  A61B6/5288 ,  G06T2207/30048 ,  Y10S378/901

摘要： X-ray images are recorded of a patient's heart and the heartbeat phase is registered as that is done. The heartbeat phases are coarsely divided into intervals and all X-ray images that have been assigned heartbeat phase from the interval are used for reconstructing a 3D image dataset. The movement fields of the other 3D image datasets are then calculated for one of said 3D image datasets. Movement fields are vector fields indicating the movements of similar structures from one local area to the other. A departure is then made from the coarse interval division, and for each heartbeat phase a movement field is interpolated individually or at least for fairly short intervals from the movement fields determined in advance, which field is used for generating a deformed 3D image dataset that has been imaged onto a reference heartbeat phase. The deformed 3D image datasets are then added together.

摘要翻译： 记录患者心脏的X射线图像，并记录心跳阶段。 将心跳阶段粗略划分为间隔，并且已经从间隔分配了心跳期的所有X射线图像用于重建3D图像数据集。 然后针对所述3D图像数据集之一计算其它3D图像数据集的运动场。 运动场是指示类似结构从一个局部区域到另一个局部区域的运动的向量场。 然后从粗间隔划分出发，并且对于每个心跳阶段，移动场单独或至少相对于预先确定的运动场的相当短的间隔进行内插，该场用于生成变形的3D图像数据集，其具有 被成像到参考心跳期。 然后将变形的3D图像数据集加在一起。

公开(公告)号：US08428319B2

公开(公告)日：2013-04-23

申请号：US12764225

申请日：2010-04-21

申请人： Yanghai Tsin ,  Klaus J. Kirchberg ,  Günter Lauritsch ,  Chenyang Xu ,  Jan Boese ,  Rui Liao

发明人： Yanghai Tsin ,  Klaus J. Kirchberg ,  Günter Lauritsch ,  Chenyang Xu ,  Jan Boese ,  Rui Liao

IPC分类号： G06K9/00

CPC分类号： G06T7/251 ,  G06T7/60 ,  G06T7/62 ,  G06T2207/10116 ,  G06T2207/30101 ,  G06T2207/30172

摘要： Automatic measurement of morphometric and motion parameters of a coronary target includes extracting reference frames from input data of a coronary target at different phases of a cardiac cycle, extracting a three-dimensional centerline model for each phase of the cardiac cycle based on the references frames and projection matrices of the coronary target, tracking a motion of the coronary target through the phases based on the three-dimensional centerline models, and determining a measurement of morphologic and motion parameters of the coronary target based on the motion.

摘要翻译： 自动测量冠状动脉靶标的形态测量和运动参数包括：在心脏周期的不同阶段从冠状动脉靶的输入数据提取参考帧，基于参考帧提取心动周期的每个相位的三维中心线模型，以及 冠状动脉靶的投影矩阵，基于三维中心线模型跟踪通过相位的冠状动脉靶的运动，以及基于运动确定冠状动脉靶标的形态和运动参数的测量。

公开(公告)号：US07599466B2

公开(公告)日：2009-10-06

申请号：US11400833

申请日：2006-04-07

申请人： Jan Boese ,  Günter Lauritsch

发明人： Jan Boese ,  Günter Lauritsch

IPC分类号： A61B6/00

CPC分类号： A61B6/4441 ,  A61B6/503 ,  A61B6/504 ,  A61B6/541

摘要： A control device pivots an X-ray arrangement repeatedly between two final angular positions about a pivot axis. Projections of an object arranged in the region of the pivot axis and moving iteratively are detected at a plurality of angular positions and supplied to the control device. The control device also receives a phase position referring to the object and assigns the phase position to each projection. A computer selects one or more projections whose phase position corresponds at least approximately to a reconstruction phase position. If the computer has selected one projection for an angular position, it determines this projection as a reconstruction projection. If the computer has selected a plurality of projections for an angular position, it detects the reconstruction projection using these projections. The computer then detects a three-dimensional reconstruction of the object based on the reconstruction projection.

摘要翻译： 控制装置在关于枢转轴线的两个最终角位置之间重复地枢转X射线装置。 在多个角位置处检测布置在枢轴轴线的区域并且迭代地移动的物体的投影并提供给控制装置。 控制装置还接收参考对象的相位位置，并将相位位置分配给每个投影。 计算机选择其相位位置至少近似于重建相位位置的一个或多个投影。 如果计算机已经为角位置选择了一个投影，则它将该投影确定为重建投影。 如果计算机已经为角位置选择了多个投影，则使用这些投影来检测重建投影。 然后，计算机基于重建投影检测对象的三维重建。

公开(公告)号：US07916827B2

公开(公告)日：2011-03-29

申请号：US11824456

申请日：2007-06-29

申请人： Jan Boese ,  Günter Lauritsch ,  Thomas Redel

发明人： Jan Boese ,  Günter Lauritsch ,  Thomas Redel

IPC分类号： A61B6/03

CPC分类号： A61B6/032 ,  A61B6/4441 ,  Y10S378/901

摘要： The invention relates to a method for evaluating projection datasets of an object undergoing examination. Each projection dataset is assigned a swiveling angle and a recording instant. Each data element of each projection dataset defines a projection line along which an X-ray beam has traveled from an X-ray source to an X-ray detector. The projection datasets form recording groups each of which corresponds with the projection datasets that were recorded during a single swiveling action. A computer determines reconstruction datasets using the projection datasets. Each reconstruction dataset contains at least one reconstruction data value assigned to a reconstruction line. Using a temporal interpolation, the computer determines the reconstruction datasets in such a way that they refer to a uniform reconstruction time. The computer determines a reconstruction of the object undergoing examination using the reconstruction datasets.

摘要翻译： 本发明涉及一种用于评估正在进行检查的对象的投影数据集的方法。 每个投影数据集被分配一个旋转角度和一个记录时刻。 每个投影数据集的每个数据元素定义了X射线束从X射线源行进到X射线检测器的投影线。 投影数据集形成记录组，每个记录组与在单次旋转动作期间记录的投影数据集相对应。 计算机使用投影数据集确定重建数据集。 每个重建数据集包含分配给重建线的至少一个重建数据值。 使用时间插值，计算机以这样的方式确定重建数据集，即它们指的是统一的重建时间。 计算机使用重建数据集确定正在进行检查的对象的重建。

公开(公告)号：US07899223B2

公开(公告)日：2011-03-01

申请号：US11238552

申请日：2005-09-29

申请人： Jan Boese ,  Günter Lauritsch

发明人： Jan Boese ,  Günter Lauritsch

IPC分类号： G06K9/00 ,  A61B6/00

CPC分类号： G06T11/005 ,  A61B5/0402 ,  A61B5/0456 ,  A61B5/7207 ,  A61B6/02 ,  A61B6/032 ,  A61B6/503 ,  A61B6/504 ,  A61B6/541 ,  G06T2211/412 ,  G06T2211/421

摘要： A precise and comparatively simple method for generating a three-dimensional image data record of a moving object using X-ray tomography and a device that is particularly suitable for implementing the method with an X-ray emitter/detector unit supported such that it can be rotated and with an evaluation unit are specified. According to the invention a number of two-dimensional raw images are grouped according to a cyclical relative time, at least two preliminary 3D image data records respectively are generated from raw images that correspond to one another according to this grouping, at least one movement matrix is derived by comparing two preliminary 3D image data records used as the source data record and the target data record respectively, a 3D image data record with compensation for movement corresponding to a reference time of the source data record is generated by applying the or each movement matrix to the associated target data record and the or each 3D image data record with compensation for movement is added to at least one further 3D image data record with compensation for movement or to another preliminary 3D-image data record corresponding to the same reference time.

摘要翻译： 一种用于使用X射线层析成像生成运动物体的三维图像数据记录的精确且相对简单的方法，以及特别适合于利用支持X射线发射器/检测器单元来实现该方法的装置，使得其可以 指定了旋转和评估单元。 根据本发明，根据循环相对时间对多个二维原始图像进行分组，根据该分组，从原始图像分别生成至少两个初步3D图像数据记录，至少一个运动矩阵 是通过比较分别用作源数据记录和目标数据记录的两个初步3D图像数据记录，通过应用该或每个运动来生成具有与源数据记录的参考时间相对应的运动补偿的3D图像数据记录 矩阵到相关联的目标数据记录，并且具有用于移动补偿的每个3D图像数据记录被添加到具有补偿移动的至少一个另外的3D图像数据记录或对应于相同参考时间的另一初步3D图像数据记录。

公开(公告)号：US08634620B2

公开(公告)日：2014-01-21

申请号：US13456480

申请日：2012-04-26

申请人： Jan Boese ,  Günter Lauritsch ,  Christopher Rohkohl ,  Bernhard Scholz

发明人： Jan Boese ,  Günter Lauritsch ,  Christopher Rohkohl ,  Bernhard Scholz

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。

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。

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。

公开(公告)号：US07315605B2

公开(公告)日：2008-01-01

申请号：US11453604

申请日：2006-06-15

申请人： Jan Boese ,  Günter Lauritsch

发明人： Jan Boese ,  Günter Lauritsch

IPC分类号： A61B6/00

CPC分类号： A61B6/032 ,  A61B6/5217 ,  A61B6/541 ,  G06T11/005 ,  G06T2211/404 ,  G06T2211/412 ,  Y10S378/901

摘要： The invention relates to a method and device for reconstructing a 3D image data set of a moving object from a set of projection images, which were recorded at least partially one after the other from different projection directions. The projection images are hereby assigned by ECG gating to a motion phase of the object in each instance and an incomplete 3D image of the object is computed in this motion phase from these few projection images using local tomography. Motion fields are determined from these 3D images and are used during the final 3D image reconstruction for motion correction.

摘要翻译： 本发明涉及一种用于从一组投影图像重建运动物体的3D图像数据集的方法和装置，其从不同的投影方向至少部分地一个接一个地记录。 因此，通过ECG门控将投影图像分配给每个实例中的对象的运动相位，并且使用局部断层摄影从这些几个投影图像在该运动相位中计算对象的不完整3D图像。 运动场由这些3D图像确定，并在运动校正的最终3D图像重建期间使用。