公开(公告)号：US08364240B2

公开(公告)日：2013-01-29

申请号：US11730274

申请日：2007-03-30

申请人： Bernhard Krauss

发明人： Bernhard Krauss

IPC分类号： A61B6/00

CPC分类号： A61B6/032 ,  A61B5/4869 ,  A61B6/4014 ,  A61B6/4035 ,  A61B6/482 ,  A61B2090/364 ,  G06T7/0012 ,  G06T7/11 ,  G06T7/97 ,  G06T2207/10081 ,  G06T2207/10152 ,  G06T2207/20012 ,  G06T2207/30084

摘要： At least one example embodiment relates to a method and/or a device for automatically differentiating types of kidney stones using computed tomography. The method provides two image data records of two computed tomography pictures of an object area including the kidney stones that have been recorded in the context of a different spectral distribution of the X-radiation. For each voxel of a slice of the object area that has X-ray attenuation values typical of kidney stones there is calculated from the two image data records a ratio r that is yielded from X-ray attenuation values of the voxel and prescribed X-ray attenuation values of pure urine in the context of the different spectral distributions of the X-radiation. The respective voxel is assigned to one of at least two types of kidney stones as a function of the variable r.

摘要翻译： 至少一个示例性实施例涉及使用计算机断层摄影来自动区分肾结石类型的方法和/或装置。 该方法提供了包括在X辐射的不同光谱分布的上下文中记录的肾结石的物体区域的两个计算机断层摄影图像的两个图像数据记录。 对于具有典型的肾结石的X射线衰减值的物体区域的每个体素的每个体素，从两个图像数据记录计算出从体素的X射线衰减值和规定的X射线产生的比率r 在X辐射的不同光谱分布的上下文中，纯尿的衰减值。 作为变量r的函数，将各个体素分配给至少两种类型的肾结石之一。

公开(公告)号：US20110280458A1

公开(公告)日：2011-11-17

申请号：US13107302

申请日：2011-05-13

申请人： Thomas Flohr ,  Bernhard Krauss ,  Rainer Raupach ,  Bernhard Schmidt

发明人： Thomas Flohr ,  Bernhard Krauss ,  Rainer Raupach ,  Bernhard Schmidt

IPC分类号： G06K9/00

CPC分类号： G06T5/002 ,  A61B6/5258 ,  G06T5/50 ,  G06T11/008 ,  G06T2200/04 ,  G06T2207/10081 ,  G06T2207/10144 ,  G06T2207/20221 ,  G06T2211/408

摘要： A method is disclosed for the reduction of image artifacts, in particular metal artifacts, during the generation of computed tomography image data of an object. In at least one embodiment of the method, two CT image data sets are generated with different medium x-ray energies. By way of a weighted combination of the two CT image data sets, a new image data set is calculated. The weighting factor employed in the weighted combination is here selected in such a way that the image artifacts in the new CT image data set are significantly reduced compared with the image artifacts in the two original CT image data sets. In this way it is possible in a simple manner significantly to reduce in particular metal artifacts in CT images.

摘要翻译： 公开了一种在物体的计算机断层摄影图像数据的生成期间减少图像伪影，特别是金属伪像的方法。 在该方法的至少一个实施例中，使用不同的中等x射线能量生成两个CT图像数据集。 通过两个CT图像数据集的加权组合，计算新的图像数据集。 在加权组合中使用的加权因子在这里被选择，使得与两个原始CT图像数据集中的图像伪像相比，新CT图像数据集中的图像伪影显着减少。 以这种方式，可以以简单的方式显着地减少CT图像中的特定金属伪影。

公开(公告)号：US20090086884A1

公开(公告)日：2009-04-02

申请号：US12232523

申请日：2008-09-18

申请人： Bernhard Krauss

发明人： Bernhard Krauss

IPC分类号： A61B6/00 ,  H05G1/10

CPC分类号： A61B6/504 ,  A61B6/032 ,  A61B6/4014 ,  A61B6/4241 ,  A61B6/481 ,  A61B6/482 ,  G01N2223/612

摘要： A method and an image evaluation unit are disclosed for recognizing and marking contrast agents in blood vessels of the lung with the aid of a CT examination using at least two different x-ray energy spectra. In at least one embodiment, the method includes scanning a patient at least in the region of the lung with two different x-ray energy spectra, with the patient having contrast agents in the blood stream; reconstructing an at least two or three dimensional tomographic display for each x-ray energy spectrum which reproduces the local spectrum-specific absorption properties of the scanned region, wherein a neighborhood is defined for a multiplicity of voxels for which an average ratio is calculated with the aid of the local absorption values of the at least two x-ray energy spectra, which neighborhood specifies a measure for the ratio of the proportion of contrast agent to the proportion of soft tissue in the neighborhood of the respectively considered voxel, and wherein, in the case of this ratio dropping below a threshold value, this voxel is considered to have reduced circulation and is marked in a tomographic display.

摘要翻译： 公开了一种方法和图像评估单元，用于借助于使用至少两种不同x射线能谱的CT检查来识别和标记肺血管中的造影剂。 在至少一个实施例中，该方法包括至少在肺部区域中用两种不同的x射线能谱扫描患者，患者在血流中具有造影剂; 重建每个x射线能谱的至少两维或三维断层图像显示，其再现扫描区域的局部光谱特异性吸收特性，其中为多个体素定义了一个邻域， 辅助所述至少两个X射线能谱的局部吸收值，该邻域规定了造影剂的比例与分别考虑的体素附近的软组织的比例的比率的量度，其中，在 该比例低于阈值的情况下，该体素被认为具有减少的循环并且在断层显像中标记。

公开(公告)号：US20070249933A1

公开(公告)日：2007-10-25

申请号：US11730274

申请日：2007-03-30

申请人： Bernhard Krauss

发明人： Bernhard Krauss

IPC分类号： A61B5/05

CPC分类号： A61B6/032 ,  A61B5/4869 ,  A61B6/4014 ,  A61B6/4035 ,  A61B6/482 ,  A61B2090/364 ,  G06T7/0012 ,  G06T7/11 ,  G06T7/97 ,  G06T2207/10081 ,  G06T2207/10152 ,  G06T2207/20012 ,  G06T2207/30084

摘要： At least one embodiment of the present application relates to a method and/or a device for automatically differentiating types of kidney stones by way of computed tomography. In at least one embodiment, the method provides two image data records of two computed tomography pictures of an object area including the kidney stones that have been recorded in the context of a different spectral distribution of the X-radiation. For each voxel of an interesting slice of the object area that has X-ray attenuation values typical of kidney stones there is calculated from the two image data records a ratio r that is yielded from X-ray attenuation values of the voxel and prescribed X-ray attenuation values of pure urine in the context of the different spectral distributions of the X-radiation. The respective voxel is assigned to one of at least two types of kidney stones as a function of the variable r. The present method enables the automatic differentiation of types of kidney stones by way of computed tomography.

摘要翻译： 本申请的至少一个实施例涉及通过计算机断层摄影来自动区分肾结石类型的方法和/或装置。 在至少一个实施例中，该方法提供包括在X辐射的不同谱分布的上下文中记录的肾结石的对象区域的两个计算机断层摄影图像的两个图像数据记录。 对于具有典型的肾结石的X射线衰减值的物体区域的有趣切片的每个体素，从两个图像数据记录计算由体素的x射线衰减值和规定的X射线衰减值产生的比率r， 在X辐射的不同光谱分布的上下文中，纯尿的射线衰减值。 作为变量r的函数，将各个体素分配给至少两种类型的肾结石中的一种。 本方法能够通过计算机断层扫描来自动区分肾结石的类型。

公开(公告)号：US20070217570A1

公开(公告)日：2007-09-20

申请号：US11710934

申请日：2007-02-27

申请人： Michael Grasruck ,  Bernhard Krauss

发明人： Michael Grasruck ,  Bernhard Krauss

IPC分类号： G01N23/06

CPC分类号： G01N23/046 ,  A61B6/032 ,  A61B6/405 ,  A61B6/482 ,  G01N2223/419

摘要： At least one embodiment of the present application relates to a method and/or an apparatus for determining the concentration of a substance in a body material that is composed of two different material components in an unknown ratio. In an embodiment of the method, two computed tomography pictures from which two image data records are reconstructed are recorded in conjunction with two different spectral distributions of the x-radiation. The x-ray attenuation values for each voxel of the two image data records are decomposed into three material components. The decomposition is performed on the assumption that the x-ray attenuation value xM of the body material without the substance is composed of the x-ray attenuation values xM1, xM2 of the first and second material component in accordance with the following equation: xM=f*xM1+(1-f)*XM2, f being a volume fraction of the first material component in the body material. The concentration of the substance is then determined for each voxel of interest on the basis of the decomposition. The concentration can be determined reliably in a simple way with the aid of an embodiment of the present method and/or an embodiment of the associated apparatus.

摘要翻译： 本申请的至少一个实施方案涉及用于确定由不同比例的两种不同材料组分组成的体材料中物质浓度的方法和/或装置。 在该方法的一个实施例中，两个重建两个图像数据记录的计算机断层摄影图像结合x辐射的两个不同光谱分布被记录。 两个图像数据记录的每个体素的x射线衰减值被分解成三个材料成分。 假设假设没有物质的主体材料的x射线衰减值x M M由x射线衰减值x M1，x， 第一和第二材料组分的M2 根据以下等式：x M = f * x M 1 +（1-f）* X M2，f是体材料中第一材料成分的体积分数。 然后基于分解确定每个目的体素的物质浓度。 借助于本方法的实施例和/或相关联的装置的实施例，可以以简单的方式可靠地确定浓度。

公开(公告)号：US08890393B2

公开(公告)日：2014-11-18

申请号：US13879679

申请日：2011-10-17

申请人： Bernhard Krauss ,  Michael Waffler ,  Arnd Ehrhardt ,  Stefanie Schreiter ,  Steffen Beier

发明人： Bernhard Krauss ,  Michael Waffler ,  Arnd Ehrhardt ,  Stefanie Schreiter ,  Steffen Beier

IPC分类号： H01J7/24 ,  F02M57/06 ,  F02P13/00 ,  H01T4/16

CPC分类号： H01T4/16

摘要： The invention relates to a spark gap comprising a number of series-connected individual spark gaps which are placed in a stack arrangement, which are spaced apart from each other by insulating material discs and are provided with a spring contact, the individual spark gaps including ring-shaped or disc-shaped electrodes, and further comprising control elements for influencing the voltage distribution over the stack arrangement. According to the invention the ring-shaped or disc-shaped electrodes required to form one of the respective individual spark gaps are each inserted into an insulating body and held by same in a centered manner. The respective insulating material discs are located between and fixed by the insulating bodies. A recess is provided inside the insulating body to receive and center the electrodes, whose shape is complementary relative to the contour of the respective electrode, wherein the recess comprises on the inner circumference at least partially elastic, resilient centering projections or centering noses.

摘要翻译： 本发明涉及一种火花间隙，其包括多个串联连接的各个火花隙，该火花间隙通过绝缘材料盘相互隔开并且设置有弹簧接触件，放置在堆叠装置中，并且设有弹簧接触件，各个火花隙包括环 形状或盘形电极，并且还包括用于影响堆叠装置上的电压分布的控制元件。 根据本发明，形成各个各自的火花隙之一所需的环形或圆盘形电极分别插入绝缘体中并以其居中的方式保持。 各绝缘材料盘位于绝缘体之间并由绝缘体固定。 在绝缘体内部设置有一个凹槽，用于容纳和居中电极，其形状相对于相应电极的轮廓是互补的，其中凹部在内圆周上包括至少部分弹性的弹性定中心的突起或居中的鼻孔。

公开(公告)号：US08542230B2

公开(公告)日：2013-09-24

申请号：US12725946

申请日：2010-03-17

申请人： Bernhard Krauss

发明人： Bernhard Krauss

IPC分类号： G06T17/00

CPC分类号： A61B6/405 ,  A61B6/032 ,  A61B6/482 ,  A61B6/505 ,  G06T11/008 ,  G06T2211/408

摘要： A method is disclosed for preparing CT image displays. In at least one embodiment, the method includes compiling N≧2 CT image data records of an area of a patient on the basis of N different X-ray energy spectra, each pixel or voxel being assigned an N-tuple CT numbers, each CT number of the N-tuple being assigned to the absorption value of one of the N X-ray energy spectra; carrying out material destruction over at least one predetermined subarea of the area of the patient represented in the CT image data records with reference to at least three materials including at least bone mineral, yellow bone marrow and red bone marrow; and outputting and/or displaying at least one CT image data record at least with reference to the predetermined subarea with absorption values relating to one of the N X-ray energy spectra or to a mathematically simulated spectrum from which the bone mineral content is extracted.

摘要翻译： 公开了一种用于制备CT图像显示器的方法。 在至少一个实施例中，该方法包括基于N个不同X射线能量谱来编码患者区域的N≥2CT图像数据记录，每个像素或体素被分配有N元组CT数，每个 分配给N个X射线能谱之一的吸收值的N元组的CT数; 参照至少包括骨矿物质，黄骨髓和红骨髓的三种材料在CT图像数据记录中表示的患者区域的至少一个预定子区域上进行物质破坏; 以及至少参照预定子区域输出和/或显示至少一个CT图像数据记录，其具有与N个X射线能量谱之一相关的吸收值，或者提取骨矿物质含量的数学模拟光谱。

公开(公告)号：US08113921B2

公开(公告)日：2012-02-14

申请号：US12301081

申请日：2007-12-19

申请人： Bernhard Krauss ,  Christian Funke ,  Heiko Roehm ,  Andreas Heber

发明人： Bernhard Krauss ,  Christian Funke ,  Heiko Roehm ,  Andreas Heber

IPC分类号： B24B23/00

CPC分类号： B24B23/03 ,  B24B45/00 ,  B24D9/08

摘要： The invention relates to a grinding disk for an eccentric grinding machine. In order to operate the grinding disk (22) having different disks diameters on one and the same eccentric grinding machine for achieving grinding results at optimum quality, without any loss of smoothness and handling quality, the disk mass of the grinding disk has a fixed predetermined value that is independent of the disk diameter selected.

摘要翻译： 本发明涉及一种用于偏心磨床的研磨盘。 为了在同一偏心研磨机上操作具有不同盘直径的研磨盘（22），以最佳质量实现磨削结果，而不损失平滑度和处理质量，磨盘的盘质量具有固定的预定 独立于所选磁盘直径的值。

公开(公告)号：US08068578B2

公开(公告)日：2011-11-29

申请号：US12232523

申请日：2008-09-18

申请人： Bernhard Krauss

发明人： Bernhard Krauss

IPC分类号： A61B6/00

CPC分类号： A61B6/504 ,  A61B6/032 ,  A61B6/4014 ,  A61B6/4241 ,  A61B6/481 ,  A61B6/482 ,  G01N2223/612

摘要： A method and an image evaluation unit are disclosed for recognizing and marking contrast agents in blood vessels of the lung with the aid of a CT examination using at least two different x-ray energy spectra. In at least one embodiment, the method includes scanning a patient at least in the region of the lung with two different x-ray energy spectra, with the patient having contrast agents in the blood stream; reconstructing an at least two or three dimensional tomographic display for each x-ray energy spectrum which reproduces the local spectrum-specific absorption properties of the scanned region, wherein a surrounding area is defined for a multiplicity of voxels for which an average ratio is calculated with the aid of the local absorption values of the at least two x-ray energy spectra, which surrounding area specifies a measure for the ratio of the proportion of contrast agent to the proportion of soft tissue in the surrounding area of the respectively considered voxel, and wherein, in the case of this ratio dropping below a threshold value, this voxel is considered to have reduced circulation and is marked in a tomographic display.

摘要翻译： 公开了一种方法和图像评估单元，用于借助于使用至少两种不同x射线能谱的CT检查来识别和标记肺血管中的造影剂。 在至少一个实施例中，该方法包括至少在肺部区域中用两种不同的x射线能谱扫描患者，患者在血流中具有造影剂; 重建每个x射线能谱的至少两个或三维断层图像显示，其再现扫描区域的局部光谱特异性吸收特性，其中为多个体素定义周围区域，其中平均比率用 所述至少两个x射线能量谱的局部吸收值的帮助，其周围区域指定造影剂的比例与分别考虑的体素的周围区域中的软组织的比例的比率的度量;以及 其中，在该比率低于阈值的情况下，该体素被认为具有减少的循环并且在断层图像显示中被标记。

公开(公告)号：US08000510B2

公开(公告)日：2011-08-16

申请号：US12539687

申请日：2009-08-12

申请人： Dieter Boeing ,  Bernhard Krauss ,  Stefan Kaepplinger ,  Bernhard Schmidt

发明人： Dieter Boeing ,  Bernhard Krauss ,  Stefan Kaepplinger ,  Bernhard Schmidt

IPC分类号： G06K9/00 ,  H01L27/146

CPC分类号： G06F19/321 ,  A61B6/02 ,  A61B6/482 ,  A61B6/545 ,  G06F19/00 ,  G16H40/63

摘要： In a method and control device to control a slice image acquisition system, a scan protocol is initially selected from a number of scan protocols, and then an automatic control of the slice image acquisition system (13) ensues on the basis of the selected scan protocol by automatic receipt of previous information regarding the examination subject, automatic synchronization of the previous information with information regarding scan protocol-specific parameters of scan protocols, and automatic selection of the scan protocol, from among the number of scan protocols, that has parameters exhibiting the greatest compatibility with the received previous information according to an established rule.

摘要翻译： 在用于控制切片图像采集系统的方法和控制装置中，最初从多个扫描协议中选择扫描协议，然后基于所选择的扫描协议对切片图像采集系统（13）进行自动控制 通过自动接收关于检查对象的先前信息，先前信息与扫描协议的扫描协议特定参数的信息的自动同步以及扫描协议的自动选择，其中扫描协议的数目具有参数 根据既定规则与接收到的先前信息的最大兼容性。