公开(公告)号：US07251845B2

公开(公告)日：2007-08-07

申请号：US11121574

申请日：2005-05-04

申请人： Stefan Schaller ,  Jürgen Simon

发明人： Stefan Schaller ,  Jürgen Simon

IPC分类号： A61G7/015

CPC分类号： A61B6/0457 ,  A61B5/0555 ,  A61B5/103 ,  A61B5/6892 ,  A61B2562/0252 ,  A61B2562/046 ,  A61G13/12 ,  A61G13/1235 ,  A61G13/1245 ,  Y10S5/935

摘要： A patient bed and a method for reproducibly positioning and supporting a patient in a medical diagnosis or therapy apparatus, such as a CT apparatus or an MRI apparatus, involve supporting at least regions of the patient body in a desired position on the patient bed and using at least one positioning unit to position the regions of the patient body relative to the patient bed. The patient bed has a number of height-adjustable elements arranged like a matrix that are individually adjustable in terms of height.

摘要翻译： 患者床和用于在诸如CT装置或MRI装置的医学诊断或治疗装置中可重复地定位和支撑患者的方法涉及将病人身体的至少区域支撑在患者床上的期望位置并且使用 至少一个定位单元，用于相对于患者床定位患者身体的区域。 患者床具有多个高度可调节的元件，其排列成矩阵，其高度可单独调节。

公开(公告)号：US07283606B2

公开(公告)日：2007-10-16

申请号：US11116196

申请日：2005-04-28

申请人： Willi Kalender ,  Stefan Schaller ,  Bernhard Schmidt

发明人： Willi Kalender ,  Stefan Schaller ,  Bernhard Schmidt

IPC分类号： H05G1/60 ,  H05G1/64 ,  A61B6/03

CPC分类号： G01T1/2985 ,  A61B6/027 ,  A61B6/032 ,  A61B6/542 ,  A61B6/544 ,  G06T11/006 ,  G06T2210/41 ,  G06T2211/432

摘要： In a method and CT apparatus and software product for reconstructing incomplete projection data sets for dose-reduced sectional spiral scanning along a z axis of a patient on a table that is movable in the z direction in the CT apparatus that has a radiation source supplied with tube current so as to emit a beam that strikes a detector system to obtain scanning data from which in an image computing device generates two-dimensional and three-dimensional scanning images of the examination subject, at a pitch greater or equal to one. For z positions having an incomplete projection data set for reconstruction of the image, in a preprocessing step data from another row of this projection and/or data for a previous or subsequent 360° rotation are used to compute a complete projection data set therefor.

摘要翻译： 在用于重建不完全投影数据组的方法和CT装置和软件产品中，用于在具有辐射源的CT装置中在z方向上移动的桌子上沿着患者的z轴进行剂量减小的部分螺旋扫描的不完全投影数据集， 电流以发射撞击检测器系统的光束，以获得扫描数据，图像计算装置中的扫描数据以大于或等于1的间距产生检查对象的二维和三维扫描图像。 对于具有用于重建图像的不完整投影数据集的z位置，在预处理步骤中，使用来自该投影的另一行的数据和/或用于先前或后续360°旋转的数据来计算用于其的完整投影数据集。

公开(公告)号：US06252926B1

公开(公告)日：2001-06-26

申请号：US09351466

申请日：1999-07-12

申请人： Thomas Flohr ,  Stefan Schaller

发明人： Thomas Flohr ,  Stefan Schaller

IPC分类号： A61B603

CPC分类号： G06T11/005 ,  A61B6/027 ,  Y10S378/901

摘要： In a method and computed tomography (CT) apparatus for the reconstruction of images from CT measured values acquired by spiral scan that are respectively allocated to one of a number of projection angles and a z-position on the longitudinal axis of the spiral scan, for each projection angle, all measured values belonging thereto and to the corresponding complementary projection angle and lying within a maximum spatial distance from the image plane, and lying within a maximum time from a reference time, are employed in the reconstruction, respectively weighted according to their spatial and time position.

摘要翻译： 在用于通过螺旋扫描获得的CT测量值重建图像的方法和计算机断层摄影（CT）装置中，所述测量值分别分配给螺旋扫描的纵轴上的多个投影角度和z-位置之一， 每个投影角度，属于其的所有测量值和对应的互补投影角并且位于距离图像平面的最大空间距离内并且位于距参考时间的最大时间内的重建中，分别根据它们 空间和时间位置。

公开(公告)号：US07822467B2

公开(公告)日：2010-10-26

申请号：US10984834

申请日：2004-11-10

申请人： Thomas Flohr ,  Bernd Ohnesorge ,  Stefan Schaller

发明人： Thomas Flohr ,  Bernd Ohnesorge ,  Stefan Schaller

IPC分类号： A61B5/05

CPC分类号： A61B6/541 ,  A61B6/027 ,  A61B6/032 ,  A61B6/503 ,  A61B6/504

摘要： A method is for producing CT images of at least one second organ cyclically excited to move by a first organ moving on its own, or examination area with rest phases and activity phases of a patient. The second organ or the examination area is scanned, preferably spirally. A three-dimensional image of the absorption coefficient is determined with the aid of a multiplicity of cutting planes on the basis of the data obtained by scanning in the rest phase of the second organ or examination area, and the movement information required to determine the rest phase is collected from the first organ.

摘要翻译： 一种用于产生至少一个第二器官的CT图像的方法，所述至少一个第二器官通过自身移动的第一器官或患者的休息期和活动期的检查区域周期性地激发移动。 扫描第二个器官或检查区域，最好是螺旋状扫描。 基于通过在第二器官或检查区域的休息阶段扫描获得的数据和确定休息所需的移动信息，借助于多个切割平面来确定吸收系数的三维图像 阶段是从第一个器官收集的。

公开(公告)号：US07570983B2

公开(公告)日：2009-08-04

申请号：US10693586

申请日：2003-10-24

申请人： Christoph Becker ,  Roman Fischbach ,  Thomas Flohr ,  Andreas Kopp ,  Bernd Ohnesorge ,  Stefan Schaller

发明人： Christoph Becker ,  Roman Fischbach ,  Thomas Flohr ,  Andreas Kopp ,  Bernd Ohnesorge ,  Stefan Schaller

IPC分类号： A61B5/00

CPC分类号： A61B5/02007 ,  A61B5/7285 ,  A61B6/00 ,  A61B6/032 ,  A61B6/4085 ,  A61B6/481 ,  A61B6/504 ,  A61B6/541 ,  A61B8/543

摘要： In a method to support the diagnosis and/or therapy of a pathological change of a blood vessel of a patient, in particular in the context of coronary heart disease at a first point in time of a pixel-based or voxel-based first image is acquired with the blood vessel of interest by an imaging method, a determination is made from the first image of a quantity of existing non-calcified plaque and a quantity of existing calcium-rich plaque, a determination of a first indicator value is made from the quantities of the different plaque types that represents a measurement of the quantity and the composition of plaque present in the blood vessel at the first point in time, a comparison of the first indicator value is made with at least one limit value stored in a storage of a data processing device, and dependent on the comparison, a presentation is made on an output unit associated with the electronic data processing device of either a proposal for a measure to be undertaken on the patient, or a proposal for no measure.

摘要翻译： 在基于像素或基于体素的第一图像的第一时间点的支持诊断和/或治疗患者的血管的特别是在冠心病的情况下的诊断和/或治疗的方法是 通过成像方法用感兴趣的血管获取，从现有的非钙化斑块的量的第一图像和现有的富含钙的斑块的量确定第一指示剂值的确定是从 表示在第一时间点存在于血管中的斑块的量和组成的测量的不同斑块类型的量，第一指示剂值的比较与存储在存储器中的至少一个限制值进行比较 数据处理装置，并且根据比较，在与电子数据处理装置相关联的输出单元上呈现关于在患者上进行的措施的提案，o 一个不采取措施的提案。

公开(公告)号：US5610964A

公开(公告)日：1997-03-11

申请号：US682023

申请日：1996-07-16

申请人： Thomas Flohr ,  Stefan Schaller

发明人： Thomas Flohr ,  Stefan Schaller

IPC分类号： A61B6/03 ,  G06F17/14 ,  G06T1/00 ,  G06T11/00

CPC分类号： G06T11/006 ,  G06T2211/421 ,  Y10S378/901

摘要： An image reconstruction method for a computer tomograph produces arbitrary eccentric segments of images. The method is a modified linogram reconstruction, more precisely a combination of linogram and gridding methods, by means of which it is possible to reconstruct arbitrary eccentric segments directly, by producing points directly on a Cartesian grip, without the necessity of transformations or interpolations.

摘要翻译： 用于计算机断层摄像机的图像重建方法产生图像的任意偏心段。 该方法是修正的线条图重建，更确切地说是线绘图和网格化方法的组合，通过它们可以通过直接在笛卡尔坐标上产生点而不需要变换或内插，可以直接重建任意偏心段。

公开(公告)号：US07215805B2

公开(公告)日：2007-05-08

申请号：US10074145

申请日：2002-02-12

申请人： Herbert Bruder ,  Thomas Flohr ,  Marc Kachelriess ,  Stefan Schaller ,  Karl Stierstorfer

发明人： Herbert Bruder ,  Thomas Flohr ,  Marc Kachelriess ,  Stefan Schaller ,  Karl Stierstorfer

IPC分类号： G06K9/00

CPC分类号： A61B6/032 ,  A61B6/027 ,  A61B6/4085 ,  Y10S378/901

摘要： In a method for computed tomography and a computed tomography apparatus for scanning a subject with a conical ray beam emanating from a focus that detects a matrix-like detector array, the focus is moved relative to the subject on a spiral path around a system axis, and the detector array supplies output data corresponding to the incident radiation, and images having an inclined image plane are reconstructed from output data respectively supplied during the movement of the focus on a spiral segment, the image planes of these images are inclined by an inclination angle γ around a first axis intersecting the system axis at a right angle and also are inclined by a tilt angle δ with respect to the system axis around a second axis that intersects the first axis as well as the system axis at a right angle.

摘要翻译： 在用于计算机断层摄影的方法和用于使用从检测矩阵状检测器阵列的焦点发出的锥形射线束扫描对象的计算机断层摄影装置中，聚焦在围绕系统轴线的螺旋路径上相对于被摄体移动， 并且检测器阵列提供对应于入射辐射的输出数据，并且具有倾斜图像平面的图像从在焦点移动到螺旋段时分别提供的输出数据重建，这些图像的图像平面倾斜倾斜角 围绕与系统轴线成直角相交的第一轴线的伽马，并且相对于围绕与第一轴线相交的第二轴线的系统轴线以及直角的系统轴线倾斜倾斜角度。

公开(公告)号：US07058156B2

公开(公告)日：2006-06-06

申请号：US10686596

申请日：2003-10-17

申请人： Herbert Bruder ,  Thomas Flohr ,  Stefan Schaller ,  Karl Stierstorfer

发明人： Herbert Bruder ,  Thomas Flohr ,  Stefan Schaller ,  Karl Stierstorfer

IPC分类号： A61B6/03

CPC分类号： A61B6/032 ,  A61B6/027 ,  A61B6/466 ,  G06T11/006 ,  G06T2211/421

摘要： An imaging method is for a multi-slice spiral CT scan with 3D back projection. Use is made, for the reconstruction of the absorption value of at least one voxel, of the measured and filtered data that are produced by rays which penetrate the at least one voxel. A CT unit is further used to carry out the method. In the method, the filtering of the data, required for the reconstruction, in the image of the virtual detector is performed in the direction of the projection of spiral segments imaged thereon which are produced by the spiral scanning over a prescribed angular range. The CT unit includes a device for carrying out directional filtering of this type.

摘要翻译： 一种成像方法是用于具有3D背投影的多层螺旋CT扫描。 对于通过穿透至少一个体素的射线产生的测量和滤波的数据，用于重构至少一个体素的吸收值。 进一步使用CT单元执行该方法。 在该方法中，在虚拟检测器的图像中对在虚拟检测器的图像中进行重建所需要的数据的滤波是在其上成像的螺旋段的投影方向上执行的，这些螺旋段是通过螺旋扫描在规定的角度范围内产生的。 CT单元包括用于执行这种类型的方向滤波的装置。

公开(公告)号：US06665370B2

公开(公告)日：2003-12-16

申请号：US10191628

申请日：2002-07-09

申请人： Herbert Bruder ,  Thomas Flohr ,  Robert Mayer ,  Bernd Ohnesorge ,  Stefan Schaller ,  Karl Stierstorfer

发明人： Herbert Bruder ,  Thomas Flohr ,  Robert Mayer ,  Bernd Ohnesorge ,  Stefan Schaller ,  Karl Stierstorfer

IPC分类号： A61B603

CPC分类号： A61B6/032 ,  A61B6/027 ,  A61B6/4447 ,  A61B6/503 ,  G01N23/046 ,  G01N2223/419 ,  G01N2223/612

摘要： In a spiral scan cone beam computed tomography method and apparatus, the output data are divided into sub-segments being shorter than the length required for the reconstruction of a CT image. Segment images having inclined image plane relative to the system axis are reconstructed for the sub-segments. A signal reproducing the time curve of the periodic motion is acquired during the scanning. A z-position on the system axis and a time position with respect to the periodic motion are allocated to the segment images. Segment images belonging to a desired range of z-positions and a desired range of time positions are selected such that the corresponding sub-segments have an overall length adequate for the reconstruction of a CT image. The selected segment images are at least indirectly combined into a resulting CT image with respect to a target image plane.

摘要翻译： 在螺旋扫描锥束计算机断层摄影方法和装置中，输出数据被划分成比CT图像的重建所需的长度短的子段。 对于子段重建具有相对于系统轴的倾斜图像平面的段图像。 在扫描期间获取再现周期性运动的时间曲线的信号。 系统轴上的z位置和相对于周期运动的时间位置被分配给段图像。 选择属于期望的Z位置范围和期望的时间位置范围的段图像，使得对应的子段具有足以用于重建CT图像的总长度。 所选择的段图像至少间接地组合成相对于目标图像平面的结果CT图像。

公开(公告)号：US06236707B1

公开(公告)日：2001-05-22

申请号：US09352447

申请日：1999-07-13

申请人： Thomas Flohr ,  Stefan Schaller

发明人： Thomas Flohr ,  Stefan Schaller

IPC分类号： A61B603

CPC分类号： G06T11/005 ,  A61B6/027 ,  Y10S378/901

摘要： In method and apparatus for the reconstruction of images of a slice of an examination subject having a slice thickness with respect to an image plane from measured values acquired by a spiral scan of the examination subject with an x-ray source rotating around the examination subject with a detector having at least one line of detector elements, measured values lying within a maximum distance from the image plane are thereby involved in the reconstruction and are weighted such that a desired functional dependency of the slice thickness on the pitch is present.

摘要翻译： 一种检查对象切片厚度相对于图像平面重建图像的方法和装置，所述检查对象的切片厚度相对于通过所述检查对象的螺旋扫描所获得的测量值，所述检查对象的X射线源围绕所述检查对象旋转， 因此，具有至少一行检测器元件的检测器，位于距离图像平面的最大距离内的测量值由此涉及重建并被加权，使得存在切片厚度对间距的期望功能依赖性。