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1. 发明申请

US20120140894A1 METHOD AND X-RAY DEVICE TO DETERMINE THE VALUE OF THE TUBE VOLTAGE 有权
标题翻译：用于确定管体电压值的方法和X射线装置
公开(公告)号：US20120140894A1
公开(公告)日：2012-06-07
申请号：US13293379
申请日：2011-11-10
申请人： Ute Feuerlein , Sebastian Gehrsitz , Christiane Koch , Gerd Mayer , Stefan Muehleck , Rainer Raupach
发明人： Ute Feuerlein , Sebastian Gehrsitz , Christiane Koch , Gerd Mayer , Stefan Muehleck , Rainer Raupach
IPC分类号： H05G1/32
CPC分类号： A61B6/032 , A61B6/50 , A61B6/542 , A61B6/545 , A61B6/583
摘要： In a method and x-ray device to determine the value of an x-ray tube voltage to generate at least one image of defined tissue to be examined, at least one provided parameter is used that establishes or describes the desired image quality; based on the dependency of the contrast of the defined tissue to be examined on the spectrum of the x-ray radiation or on the value of the tube voltage of the x-ray tube. The tube voltage is determined also based on a contrast-to-noise ratio that is constantly maintained under consideration of the aforementioned parameter such that the dose of x-ray radiation applied to the patient is optimally low upon setting the value of the tube voltage at the x-ray tube and the acquisition of at least one x-ray projection of the defined tissue.
摘要翻译：在用于确定x射线管电压的值以产生待检查的所定义组织的至少一个图像的方法和x射线装置中，使用至少一个提供的参数来建立或描述所需的图像质量; 基于要检查的所确定组织的对比度对X射线辐射的光谱或X射线管的管电压的值的依赖性。管电压还基于在考虑上述参数下不断保持的对比噪声比来确定，使得施加到患者的x射线辐射的剂量在将管电压的值设置在 X射线管和获取所定义组织的至少一个X射线投影。

2. 发明授权

US08693636B2 Method and X-ray device to determine the value of the tube voltage 有权
标题翻译：方法和X射线装置确定管电压的值
公开(公告)号：US08693636B2
公开(公告)日：2014-04-08
申请号：US13293379
申请日：2011-11-10
申请人： Ute Feuerlein , Sebastian Gehrsitz , Christiane Koch , Gerd Mayer , Stefan Muehleck , Rainer Raupach
发明人： Ute Feuerlein , Sebastian Gehrsitz , Christiane Koch , Gerd Mayer , Stefan Muehleck , Rainer Raupach
IPC分类号： H05G1/32
CPC分类号： A61B6/032 , A61B6/50 , A61B6/542 , A61B6/545 , A61B6/583
摘要： In a method and x-ray device to determine the value of an x-ray tube voltage to generate at least one image of defined tissue to be examined, at least one provided parameter is used that establishes or describes the desired image quality; based on the dependency of the contrast of the defined tissue to be examined on the spectrum of the x-ray radiation or on the value of the tube voltage of the x-ray tube. The tube voltage is determined also based on a contrast-to-noise ratio that is constantly maintained under consideration of the aforementioned parameter such that the dose of x-ray radiation applied to the patient is optimally low upon setting the value of the tube voltage at the x-ray tube and the acquisition of at least one x-ray projection of the defined tissue.
摘要翻译：在用于确定x射线管电压的值以产生待检查的限定组织的至少一个图像的方法和x射线装置中，使用至少一个提供的参数来建立或描述所需的图像质量; 基于要检查的所确定组织的对比度对X射线辐射的光谱或X射线管的管电压的值的依赖性。管电压还基于在考虑上述参数下不断保持的对比噪声比来确定，使得施加到患者的x射线辐射的剂量在将管电压的值设置在 X射线管和获取所定义组织的至少一个X射线投影。

3. 发明授权

US08687763B2 Method and device to determine the value of an x-ray tube voltage 有权
标题翻译：确定X射线管电压值的方法和装置
公开(公告)号：US08687763B2
公开(公告)日：2014-04-01
申请号：US13293366
申请日：2011-11-10
申请人： Ute Feuerlein , Sebastian Gehrsitz , Christiane Koch , Rainer Raupach
发明人： Ute Feuerlein , Sebastian Gehrsitz , Christiane Koch , Rainer Raupach
IPC分类号： H05G1/30
CPC分类号： A61B6/032 , A61B6/405 , A61B6/481 , A61B6/542 , A61B6/583
摘要： The value of a tube voltage of an x-ray tube, used to acquire x-ray projections of a patient in order to generate at least one image in each phase of a multiphase examination, is determined from a contrast-to-noise ratio that establishes the desired image quality of the image in each phase, and the tube current for each tube voltage for each phase is determined given a constantly maintained contrast-to-noise ratio for different tube voltages. For each phase, a value for the dose of x-ray radiation is defined for each different tube voltage and the associated determined tube current. From among the different tube voltages, a tube voltage is set that causes the total dose of x-ray radiation applied to the patient to be as low as possible for all phases of the examination.
摘要翻译：用于获取患者的x射线投影以便在多相检查的每个阶段中产生至少一个图像的X射线管的管电压的值由对比度 - 在各相中建立图像的期望图像质量，并且针对不同的管电压确定针对每个相的每个管电压的管电流，给定恒定的对比噪声比。对于每个相，针对每个不同的管电压和相关的确定的管电流来定义X射线辐射剂量的值。从不同的管电压中，设置管电压，其使得施加到患者的X射线辐射的总剂量尽可能低于检查的所有阶段。

4. 发明申请

US20120140893A1 METHOD AND DEVICE TO DETERMINE THE VALUE OF AN X-RAY TUBE VOLTAGE 有权
标题翻译：确定X射线管电压值的方法和装置
公开(公告)号：US20120140893A1
公开(公告)日：2012-06-07
申请号：US13293366
申请日：2011-11-10
申请人： Ute Feuerlein , Sebastian Gehrsitz , Christiane Koch , Rainer Raupach
发明人： Ute Feuerlein , Sebastian Gehrsitz , Christiane Koch , Rainer Raupach
IPC分类号： H05G1/32
CPC分类号： A61B6/032 , A61B6/405 , A61B6/481 , A61B6/542 , A61B6/583
摘要： The value of a tube voltage of an x-ray tube, used to acquire x-ray projections of a patient in order to generate at least one image in each phase of a multiphase examination, is determined from a contrast-to-noise ratio that establishes the desired image quality of the image in each phase, and the tube current for each tube voltage for each phase is determined given a constantly maintained contrast-to-noise ratio for different tube voltages. For each phase, a value for the dose of x-ray radiation is defined for each different tube voltage and the associated determined tube current. From among the different tube voltages, a tube voltage is set that causes the total dose of x-ray radiation applied to the patient to be as low as possible for all phases of the examination.
摘要翻译：用于获取患者的x射线投影以便在多相检查的每个阶段中产生至少一个图像的X射线管的管电压的值由对比度 - 在各相中建立图像的期望图像质量，并且针对不同的管电压确定针对每个相的每个管电压的管电流，给定恒定的对比噪声比。对于每个相，针对每个不同的管电压和相关的确定的管电流来定义X射线辐射剂量的值。从不同的管电压中，设置管电压，其使得施加到患者的X射线辐射的总剂量尽可能低于检查的所有阶段。

5. 发明授权

US08509379B2 Method and X-ray device for adapting greyscale windowing 有权
标题翻译：用于适应灰度窗口的方法和X射线装置
公开(公告)号：US08509379B2
公开(公告)日：2013-08-13
申请号：US13360964
申请日：2012-01-30
申请人： Ute Feuerlein , Ernst Klotz , Rainer Raupach , Bernhard Schmidt
发明人： Ute Feuerlein , Ernst Klotz , Rainer Raupach , Bernhard Schmidt
IPC分类号： A61B6/00 , G06K9/00
CPC分类号： A61B6/032 , A61B6/405 , A61B6/481 , A61B6/5258 , A61B6/545 , A61B6/583 , G06T5/009 , H05G1/32
摘要： In a method and x-ray device to adapt the width and the position of a central value of a greyscale windowing for imaging with the x-ray device based on CT values determined with said x-ray device, the adaptation takes place within the scope of a determination and adjustment of an acquisition tube voltage of an x-ray tube of the x-ray device for an examination of a defined tissue of a patient, assuming a reference tube voltage for the examination of the defined tissue of the patient, and in which a width and position of a central value of the greyscale windowing that are associated with the reference tube voltage are automatically adapted to the acquisition tube voltage.
摘要翻译：在一种方法和x射线装置中，根据由所述X射线装置确定的CT值，使用x射线装置进行成像的灰度窗口的中心值的宽度和位置调整，适应范围在确定和调整x射线装置的X射线管的采集管电压，用于检查患者的确定的组织，假设用于检查患者的确定的组织的参考管电压，以及其中与参考管电压相关联的灰度窗口的中心值的宽度和位置自动适应于采集管电压。

6. 发明申请

US20120201344A1 METHOD AND X-RAY DEVICE FOR ADAPTING GREYSCALE WINDOWING 有权
标题翻译：用于适应窗帘窗的方法和X射线装置
公开(公告)号：US20120201344A1
公开(公告)日：2012-08-09
申请号：US13360964
申请日：2012-01-30
申请人： Ute Feuerlein , Ernst Klotz , Rainer Raupach , Bernhard Schmidt
发明人： Ute Feuerlein , Ernst Klotz , Rainer Raupach , Bernhard Schmidt
IPC分类号： A61B6/03
CPC分类号： A61B6/032 , A61B6/405 , A61B6/481 , A61B6/5258 , A61B6/545 , A61B6/583 , G06T5/009 , H05G1/32
摘要： In a method and x-ray device to adapt the width and the position of a central value of a greyscale windowing for imaging with the x-ray device based on CT values determined with said x-ray device, the adaptation takes place within the scope of a determination and adjustment of an acquisition tube voltage of an x-ray tube of the x-ray device for an examination of a defined tissue of a patient, assuming a reference tube voltage for the examination of the defined tissue of the patient, and in which a width and position of a central value of the greyscale windowing that are associated with the reference tube voltage are automatically adapted to the acquisition tube voltage.
摘要翻译：在一种方法和x射线装置中，根据由所述X射线装置确定的CT值，使用X射线装置进行成像的灰度窗口的中心值的宽度和位置，以适应范围确定和调整x射线装置的X射线管的采集管电压，用于检查患者的确定的组织，假设用于检查患者的确定的组织的参考管电压，以及其中与参考管电压相关联的灰度窗口的中心值的宽度和位置自动适应于采集管电压。

7. 发明授权

US09993216B2 Creating a resultant image for a specifiable, virtual x-ray quanta energy distribution 有权
公开(公告)号：US09993216B2
公开(公告)日：2018-06-12
申请号：US15068554
申请日：2016-03-12
申请人： Thomas Flohr , Steffen Kappler , Rainer Raupach , Bernhard Schmidt
发明人： Thomas Flohr , Steffen Kappler , Rainer Raupach , Bernhard Schmidt
IPC分类号： A61B6/03 , A61B5/00 , A61B6/00
CPC分类号： A61B6/5205 , A61B5/0077 , A61B6/032 , A61B6/482
摘要： A method for creating a resultant image for a specifiable, virtual x-ray quanta energy distribution includes capturing a first image dataset of the patient, capturing at least one second image dataset of the patient, and specifying a virtual x-ray quanta energy distribution. The method also includes establishing a spatial density distribution of the patient for at least two materials based on the first image dataset and the at least one second image dataset. The method includes creating a third image dataset of the patient based on the specified virtual x-ray quanta energy distribution and the established spatial material density distributions. The third image dataset represents an x-ray attenuation distribution of the patient corresponding to the specified virtual x-ray quanta energy distribution. The method also includes creating the virtual image from the third image dataset.

8. 发明授权

US09147267B2 Reconstruction of image data 有权
标题翻译：重建图像数据
公开(公告)号：US09147267B2
公开(公告)日：2015-09-29
申请号：US13674422
申请日：2012-11-12
申请人： Herbert Bruder , Rainer Raupach
发明人： Herbert Bruder , Rainer Raupach
IPC分类号： G06K9/00 , G06T11/00 , A61B6/03 , A61B6/00
CPC分类号： G06T11/003 , A61B6/032 , A61B6/5205 , G06T11/006 , G06T2211/424
摘要： A method and image reconstruction facility are disclosed for reconstructing an image dataset based on a projection dataset acquired with the aid of an x-ray computed tomography apparatus. With an embodiment of the method, a first image dataset is reconstructed based on the projection dataset and an edge image dataset is generated, which indicates a measure of an edge strength of edges occurring in at least one spatial/temporal direction in the first image dataset, as a function of location. An output image dataset is then generated based on the first image dataset, with the resolution in the first image dataset being increased as a function of location in at least one spatial/temporal direction taking into account the edge image dataset.
摘要翻译：公开了一种基于通过X射线计算机断层摄影装置获得的投影数据集来重构图像数据集的方法和图像重建装置。利用该方法的实施例，基于投影数据集重建第一图像数据集，并且生成边缘图像数据集，其指示在第一图像数据集中的至少一个空间/时间方向上出现的边缘的边缘强度的度量，作为位置的函数。然后，基于第一图像数据集生成输出图像数据集，其中第一图像数据集中的分辨率随着至少一个空间/时间方向的位置而增加，同时考虑边缘图像数据集。

9. 发明授权

US08892187B2 Method for reducing step artifacts in a cardio CT representation 有权
标题翻译：减少心脏CT表现中的步骤假象的方法
公开(公告)号：US08892187B2
公开(公告)日：2014-11-18
申请号：US11727751
申请日：2007-03-28
申请人： Herbert Bruder , Rainer Raupach
发明人： Herbert Bruder , Rainer Raupach
IPC分类号： A61B5/05 , G06T3/40 , A61B6/00 , G06T7/20 , A61B6/03
CPC分类号： G06T3/4007 , A61B6/032 , A61B6/503 , A61B6/5217 , G06T7/246 , G06T2207/30048 , G06T2211/412
摘要： A method is disclosed for reducing step artifacts in the forward increment direction of a cardio CT representation. In at least one embodiment, volume recordings or section images of first and second sub-volumes of a heart volume, which lie adjacent to one another in the forward increment direction and partially overlap in an overlap region, are recorded by a computer tomography system. Each sub-volume's detector data is used for the reconstruction coming from different heart cycles. Finally, a displacement vector relative to a second sub-volume is determined at least for a selected point of the overlap region of a first sub-volume and the second sub-volume is subjected at least partially to a spatial transformation according to the at least one displacement vector.
摘要翻译：公开了一种用于减少心脏CT表示的向前增量方向上的步骤伪像的方法。在至少一个实施例中，通过计算机断层摄影系统记录心脏体积的第一和第二子体积的体积记录或分段图像，其以正向增量方向彼此相邻并且在重叠区域中部分重叠。每个子体积的检测器数据用于来自不同心脏周期的重建。最后，至少对于第一子体积的重叠区域的选定点确定相对于第二子体积的位移矢量，并且至少部分地将第二子体积至少部分地进行空间变换，至少一个位移矢量。

10. 发明授权

US08891885B2 Method, computing unit, CT system and C-arm system for reducing metal artifacts in CT image datasets 有权
标题翻译：方法，计算单元，CT系统和C臂系统，用于减少CT图像数据集中的金属伪影
公开(公告)号：US08891885B2
公开(公告)日：2014-11-18
申请号：US13562478
申请日：2012-07-31
申请人： Marc Kachelriess , Esther Meyer , Rainer Raupach
发明人： Marc Kachelriess , Esther Meyer , Rainer Raupach
IPC分类号： G06K9/00 , A61B6/03 , G06T5/50 , A61B6/00 , G06T11/00 , G06T5/00
CPC分类号： A61B6/00 , A61B6/03 , A61B6/5282 , G06T5/003 , G06T5/50 , G06T11/008 , G06T2207/10081
摘要： A method is disclosed for reducing metal artifacts in CT image datasets. An embodiment of the method includes reconstructing a first CT image dataset with and a second CT image dataset without metal artifact correction, weighted summation of a high-pass-filtered first and a high-pass-filtered second CT image dataset plus a low-pass-filtered second CT image dataset, wherein the weightings are dependent on the proximity to metal in the CT image datasets. A computing unit, a CT system and a C-arm system designed to execute the method are also disclosed.
摘要翻译：公开了用于减少CT图像数据集中的金属伪影的方法。该方法的实施例包括用没有金属伪像校正的第一CT图像数据集和第二CT图像数据集重建第一CT图像数据集，高通滤波的第一和高通滤波的第二CT图像数据集加低通的加权求和过滤的第二CT图像数据集，其中权重取决于CT图像数据集中金属的接近度。还公开了一种计算单元，CT系统和设计用于执行该方法的C臂系统。

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