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91. 发明申请

US20060203956A1 Method for an x-ray device and computer tomograph for reducing beam hardening artifacts from a generated image of an object 有权
标题翻译：用于从生成的物体图像减少束固化伪像的用于X射线装置和计算机断层摄影机的方法
公开(公告)号：US20060203956A1
公开(公告)日：2006-09-14
申请号：US11360772
申请日：2006-02-24
申请人： Rainer Raupach
发明人： Rainer Raupach
IPC分类号： H05G1/60 , A61B6/00 , G01N23/00 , G21K1/12
CPC分类号： A61B6/4241 , A61B6/032 , A61B6/482
摘要： A method is disclosed for an x-ray device and a computer tomograph for suppressing beam hardening artifacts in a generated image of an object, for example in a tomogram of a patient. In the method, N measured values are acquired relating to N different energy ranges of the x-radiation. Further, one pseudomonochromatic measured value is calculated in each case from the N measured values such that there is generated from different projection directions on the basis of the calculated psuedomonochromatic measured values, an image in which beam hardening artifacts are substantially suppressed.
摘要翻译：公开了一种用于例如在患者的断层图像中的用于抑制所生成的对象的图像中的束固化伪影的X射线装置和计算机断层摄影机的方法。在该方法中，获得与X辐射的N个不同能量范围相关的N个测量值。此外，在每种情况下，从N个测量值中计算出一个假单色测量值，使得根据计算出的色差单色测量值从不同的投影方向生成，其中基本上抑制了束固化伪影的图像。

92. 发明申请

US20060146984A1 Method for determining at least one scaling factor for measured values of a computed tomography unit 审中-公开
标题翻译：用于确定计算机断层摄影单元的测量值的至少一个缩放因子的方法
公开(公告)号：US20060146984A1
公开(公告)日：2006-07-06
申请号：US11313732
申请日：2005-12-22
申请人： Herbert Bruder , Johannes Ebersberser , Rainer Raupach
发明人： Herbert Bruder , Johannes Ebersberser , Rainer Raupach
IPC分类号： A61B6/00 , G01N23/00 , G21K1/12 , H05G1/60
CPC分类号： A61B6/032 , A61B6/4014 , A61B6/583
摘要： A method is disclosed for determining at least one scaling factor for measured values obtained with the aid of a computed tomography unit. The computed tomography unit includes at least two recording systems that can rotate about a common rotation axis. Each of the systems includes an X-ray source and a detector having detector elements for detecting X-radiation emanating from the X-ray source. To reduce artifacts when use is made of measured values of the two recording systems in the reconstruction of an image, a scaling factor is determined for the measured values of the first or of the second recording system on the basis of measured values that originate from projections recorded from an object with the aid of the two recording systems. Each of the two recording systems is used to record at least one projection at at least substantially the same projection angle, whose measured values are compared with one another.
摘要翻译：公开了一种用于确定借助于计算机断层摄影单元获得的测量值的至少一个缩放因子的方法。计算机断层摄影单元包括可绕公共旋转轴线旋转的至少两个记录系统。每个系统包括X射线源和具有用于检测从X射线源发出的X射线的检测器元件的检测器。为了在图像重构中使用两个记录系统的测量值来减少伪像，基于来自投影的测量值来确定第一或第二记录系统的测量值的缩放因子借助于两个记录系统从物体记录。两个记录系统中的每一个用于以至少基本上相同的投影角度记录至少一个投影，其测量值彼此进行比较。

93. 发明授权

US10210632B2 Structure-compliant noise reduction during multispectral computed tomography imaging 有权
公开(公告)号：US10210632B2
公开(公告)日：2019-02-19
申请号：US15091658
申请日：2016-04-06
申请人： Thomas Flohr , Steffen Kappler , Rainer Raupach , Harald Schöndube
发明人： Thomas Flohr , Steffen Kappler , Rainer Raupach , Harald Schöndube
IPC分类号： G06F19/00 , G06T11/00
摘要： A method for reconstructing image data during CT imaging is described. In the method, a plurality of independent data records of projection measured data are captured. A combined data record is then determined based on the captured data records. In addition, morphological information is determined based on the combined data record. A target data record is also determined based on the captured independent data records. A target image data record is reconstructed based on the target data record and the determined morphological information. An image data determination facility and a computed tomography system are also described.

94. 发明申请

US20160307340A1 MULTISPECTRAL CT IMAGING 审中-公开
标题翻译：多重CT成像
公开(公告)号：US20160307340A1
公开(公告)日：2016-10-20
申请号：US15092784
申请日：2016-04-07
申请人： Thomas Allmendinger , Rainer Raupach , Bernhard Schmidt , Harald Schöndube
发明人： Thomas Allmendinger , Rainer Raupach , Bernhard Schmidt , Harald Schöndube
IPC分类号： G06T11/00
CPC分类号： G06T11/008 , G06T2211/408
摘要： A multi-spectral CT imaging method, preferably a CT imaging method, is described. Spectrally resolved projection scan data is acquired from a region to be imaged of an examination object. The data is assigned to a plurality of pre-determined different partial spectra. Spectrally resolved image data is reconstructed with a plurality of attenuation values for each image point of the region to be imaged. The attenuation values are each assigned to one of the pre-determined different partial spectra. Furthermore, an extremal attenuation value is determined for each image point on the basis of the plurality of attenuation values. A representative image data set is determined such that the determined extremal attenuation value is assigned to each image point.
摘要翻译：描述了多光谱CT成像方法，优选CT成像方法。从检查对象的要成像的区域获取光谱分辨的投影扫描数据。将数据分配给多个预定的不同部分光谱。用要成像的区域的每个图像点的多个衰减值来重构光谱分辨的图像数据。衰减值分别被分配给预定的不同部分光谱之一。此外，基于多个衰减值，针对每个图像点确定极值衰减值。确定代表性图像数据集，使得确定的极值衰减值被分配给每个图像点。

95. 发明授权

US08553962B2 Temporal resolution in cardio CT 有权
标题翻译：心脏CT时间分辨率
公开(公告)号：US08553962B2
公开(公告)日：2013-10-08
申请号：US13164796
申请日：2011-06-21
申请人： Thomas Allmendinger , Herbert Bruder , Thomas Flohr , Rainer Raupach , Harald Schöndube , Karl Stierstorfer
发明人： Thomas Allmendinger , Herbert Bruder , Thomas Flohr , Rainer Raupach , Harald Schöndube , Karl Stierstorfer
IPC分类号： G06K9/00 , A61B6/00
CPC分类号： A61B6/032 , A61B6/4441 , A61B6/481 , A61B6/486 , A61B6/503 , A61B6/507 , A61B6/5211 , A61B6/5264 , A61B6/5288 , A61B2090/3762 , G06T5/002 , G06T5/50 , G06T11/006 , G06T2207/10081 , G06T2207/20221 , G06T2207/30048 , G06T2211/412 , G06T2211/436
摘要： A method is disclosed for the reconstruction of picture data of a moving object under examination from measurement, with the measurement data having been recorded beforehand for a relative rotational movement between a radiation source of a computed tomography system and the object under examination. In at least one embodiment, first picture data is computed from a complete measurement dataset of the measurement data for a picture reconstruction, and second picture data is computed from an incomplete measurement dataset for a computed tomography picture reconstruction. The first picture data and the second picture data are combined into third picture data, with the combination being computed using location-dependent movement information of the object under examination.
摘要翻译：公开了一种用于重建从测量中检查的移动物体的图像数据的方法，其中测量数据已被预先记录在计算机断层摄影系统的辐射源和被检查物体之间的相对旋转运动。在至少一个实施例中，从用于图像重建的测量数据的完整测量数据集计算第一图像数据，并且从用于计算机断层摄影图像重建的不完整测量数据集计算第二图像数据。将第一图像数据和第二图像数据组合成第三图像数据，使用正在检查的对象的位置相关运动信息来计算组合。

96. 发明授权

US08422625B2 Motion control method and motion control module, image processing actuation method and image processing actuation module 有权
标题翻译：运动控制方法和运动控制模块，图像处理驱动方法和图像处理驱动模块
公开(公告)号：US08422625B2
公开(公告)日：2013-04-16
申请号：US12585575
申请日：2009-09-18
申请人： Herbert Bruder , Rainer Raupach
发明人： Herbert Bruder , Rainer Raupach
IPC分类号： A61B6/03
CPC分类号： A61B6/032 , A61B6/027 , A61B6/503 , A61B6/541
摘要： A motion control method is disclosed for controlling a relative scan feed motion of an object bearing device toward a scanner unit of a computed tomography system. Here, scan motion control signals are generated parallel to the scan feed motion for controlling the scan feed motion, which scan motion control signals are derived from variable input data obtained in parallel during a scan procedure. In at least one embodiment, the variable input data includes motion signals which represent the object motion cycle determined with the aid of an electrocardiogram, and the speed of the scan feed motion is reduced if an extrasystole is detected. Furthermore, at least one embodiment of the invention relates to a motion control module suited to this and/or an image processing actuation method and/or an image processing actuation module for actuating an image processing system.
摘要翻译：公开了一种用于控制物体承载装置朝向计算机断层摄影系统的扫描器单元的相对扫描进给运动的运动控制方法。这里，与用于控制扫描进给运动的扫描进给运动平行生成扫描运动控制信号，扫描运动控制信号从扫描过程中并行获得的可变输入数据导出。在至少一个实施例中，可变输入数据包括表示借助于心电图确定的对象运动周期的运动信号，并且如果检测到收缩周期，则减少扫描进给运动的速度。此外，本发明的至少一个实施例涉及一种适用于此和/或图像处理致动方法的运动控制模块和/或用于致动图像处理系统的图像处理致动模块。

97. 发明授权

US08379953B2 Method for creating computed tomography recordings of a patient with metallic components 有权
标题翻译：用于创建具有金属部件的患者的计算机断层摄影记录的方法
公开(公告)号：US08379953B2
公开(公告)日：2013-02-19
申请号：US12585023
申请日：2009-09-01
申请人： Herbert Bruder , Rainer Raupach
发明人： Herbert Bruder , Rainer Raupach
IPC分类号： G06K9/00 , A61B6/00
CPC分类号： A61B6/4014 , A61B6/032 , A61B6/4241 , A61B6/4441 , A61B6/466 , A61B6/482 , A61B6/5258 , A61B6/541 , G06T11/005
摘要： A method is disclosed for creating computed tomography recordings of a patient with metallic components. In at least one embodiment, the method includes scanning the patient by use of an x-ray tube detector system, with at least one sinogram being compiled; determining the detector signal data, which was attenuated by the metallic components in the patient; deleting the detector signal data, which was influenced by metallic components; determining the beam tracks in the sinogram at least of the volume elements, which are struck by beams which are attenuated by the metallic components and which cross the beam track of the deleted detector signal data in the sonogram; determining a minimal measurement value on each beam track respectively; adding together the minimal measurement values of the beam tracks to obtain the measurement points of the deleted detector signal data crossed by these beam tracks in the sonogram; and using this at least one sinogram determined in this manner to reconstruct computed tomography recordings of the patient without a metallic component, and displaying the reconstructed computed tomography recordings of the patient with metallic components.
摘要翻译：公开了一种用于创建具有金属部件的患者的计算机断层摄影记录的方法。在至少一个实施例中，该方法包括使用X射线管检测器系统对患者进行扫描，其中至少一个正弦图被编译; 确定由患者中的金属部件衰减的检测器信号数据; 删除受金属部件影响的检测器信号数据; 确定正弦图中的至少一个体积元素的光束轨迹，这些光束被由金属部件衰减并且与超声波图中被删除的检测器信号数据的光束轨迹交叉的光束撞击; 分别确定每个光束轨道上的最小测量值; 将波束轨迹的最小测量值相加在一起，以获得在超声波图中被这些波束轨迹交叉的被删除检测器信号数据的测量点; 并且使用这种以这种方式确定的至少一个正弦图来重建没有金属部件的患者的计算机断层摄影记录，并且用金属部件显示患者的重建计算机断层摄影记录。

98. 发明授权

US08306295B2 Method for generating computed tomography image data records of a patient in the heart CT scan during a perfusion control by applying contrast agent 有权
标题翻译：用于在灌注控制期间通过应用造影剂在心脏CT扫描中产生患者的计算机断层摄影图像数据记录的方法
公开(公告)号：US08306295B2
公开(公告)日：2012-11-06
申请号：US12585580
申请日：2009-09-18
申请人： Herbert Bruder , Rainer Raupach
发明人： Herbert Bruder , Rainer Raupach
IPC分类号： G06K9/00 , A61B6/00
CPC分类号： A61B6/504 , A61B6/481 , A61B6/507 , G06F19/00 , G06T11/005
摘要： A method is disclosed for generating computed tomography image data records of a patient in a heart CT scan during a perfusion control by applying contrast agent. In at least one embodiment, a plurality of temporally consecutive CT data records are recorded as an exposure series with a CT system and if necessary are reconstructed. These CT data records are improved for better visualization of the perfusion by way of electronic filtering and post-processing, with all projection and/or image data determined during a CT scan being used, however with the aid of frequency filtering only the data of a projection or of a reconstructed image for generating a final representation being used which does not fall within a predetermined local frequency range of a heart movement.
摘要翻译：公开了一种用于在灌注控制期间通过应用造影剂在心脏CT扫描中产生患者的计算机断层摄影图像数据记录的方法。在至少一个实施例中，多个时间上连续的CT数据记录被记录为具有CT系统的曝光序列，并且如果需要重建。改进这些CT数据记录，以通过电子滤波和后处理的方式更好地可视化灌注，所有投影和/或图像数据在CT扫描期间确定，然而借助频率滤波仅对投影或重建图像，用于生成不在心脏运动的预定局部频率范围内的正在使用的最终表示。

99. 发明授权

US08218721B2 X-ray beam modifying diaphragm and diaphragm device 有权
标题翻译： X射线束修改膜片和隔膜装置
公开(公告)号：US08218721B2
公开(公告)日：2012-07-10
申请号：US12570197
申请日：2009-09-30
申请人： Rainer Raupach , Bernhard Schmidt
发明人： Rainer Raupach , Bernhard Schmidt
IPC分类号： G21K1/04 , H05G1/60
CPC分类号： G21K1/10 , A61B6/032 , A61B6/06 , A61B6/4035 , G21K1/02
摘要： A diaphragm and diaphragm device for the specific manipulation of x-ray radiation that emanates from an x-ray focus of a CT apparatus and serves for scanning an examination subject, wherein the x-ray focus and the diaphragm arranged relatively near to the focus can be rotated together around a system axis (z-axis), and the diaphragm has movable diaphragm elements that dynamically adjust a diaphragm aperture (and therefore the spatial divergence of the x-rays passing through the diaphragm aperture). The diaphragm elements have a transmission factor for x-ray radiation that is different than zero. With such a diaphragm or diaphragm device the acquisition of the projection data necessary for the reconstruction of an artifact-free image of a region of interest (ROI) is possible with lower radiation exposure of the examination subject.
摘要翻译：一种隔膜和隔膜装置，用于对CT装置的x射线焦点产生的x射线辐射的特定操作，用于扫描检查对象，其中x射线焦点和相对靠近焦点布置的光阑可以围绕系统轴线（z轴）旋转在一起，并且隔膜具有可动的膜片元件，其可动态地调节光阑孔径（因此通过光阑孔径的x射线的空间发散）。隔膜元件具有不同于零的x射线辐射的透射系数。使用这种隔膜或隔膜装置，可以在检查对象的较低的辐射照射下获取重建感兴趣区域（ROI）的无伪像图像所需的投影数据。

100. 发明授权

US08189734B2 Scanning and reconstruction method of a CT system and CT system 有权
标题翻译： CT系统和CT系统的扫描和重建方法
公开(公告)号：US08189734B2
公开(公告)日：2012-05-29
申请号：US12686413
申请日：2010-01-13
申请人： Herbert Bruder , Thomas Flohr , Rainer Raupach
发明人： Herbert Bruder , Thomas Flohr , Rainer Raupach
IPC分类号： A61B6/00
CPC分类号： G06T11/006 , A61B6/027 , A61B6/507 , G06T2211/412 , G06T2211/421
摘要： A method is disclosed for scanning an examination object with a CT system and the generation of at least one computed tomographic sectional view from data obtained from the scanning and a CT system. In at least one embodiment, data used for generating the at least one sectional image is filtered out with different intensities as a function of a predetermined time range and/or projection angle range of the measurement of high local frequencies.
摘要翻译：公开了一种用于使用CT系统扫描检查对象并从从扫描和CT系统获得的数据生成至少一个计算机断层图截面视图的方法。在至少一个实施例中，用于产生至少一个截面图像的数据作为预定时间范围和/或高本地频率的测量的投影角范围的函数以不同的强度被滤除。

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