公开(公告)号：US20110280458A1

公开(公告)日：2011-11-17

申请号：US13107302

申请日：2011-05-13

Applicant: Thomas Flohr ,  Bernhard Krauss ,  Rainer Raupach ,  Bernhard Schmidt

Inventor： Thomas Flohr ,  Bernhard Krauss ,  Rainer Raupach ,  Bernhard Schmidt

IPC: G06K9/00

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

Abstract: 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.

Abstract translation: 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：US08121377B2

公开(公告)日：2012-02-21

申请号：US12453105

申请日：2009-04-29

Applicant: Thomas Flohr ,  Bernhard Krauss ,  Bernhard Schmidt

Inventor： Thomas Flohr ,  Bernhard Krauss ,  Bernhard Schmidt

IPC: G06K9/00

CPC classification number: A61B6/481 ,  A61B6/032 ,  A61B6/4014 ,  A61B6/405 ,  A61B6/482 ,  A61B6/5235 ,  G06T5/50 ,  G06T2207/30101

Abstract: A method and a correspondingly configured tomography scanner are disclosed for normalizing image data with respect to a contrast in the image data produced by a contrast agent, the image data illustrating a tissue structure to be examined and at least part of a blood vessel system of an examination region connected to the tissue structure, which are at least in part permeated by the contrast agent. In an embodiment of the method, image data of the examination region is provided with the aid of the tomography scanner. At least one section of a reference vessel permeated by contrast agent is selected in the image data. The image data is normalized on the basis of image data from the section of the reference vessel such that the contrast in the image data as a result of the contrast agent is almost independent of patient-specific and examination-specific parameters in order to ensure that image data from different times can be compared.

Abstract translation: 公开了一种方法和相应配置的断层扫描仪，用于相对于由造影剂产生的图像数据中的对比度来归一化图像数据，所述图像数据示出了要检查的组织结构，以及至少部分血管系统 检查区域连接到组织结构，其至少部分地被造影剂渗透。 在该方法的一个实施例中，借助于层析成像扫描器来提供检查区域的图像数据。 在图像数据中选择由造影剂渗透的参考容器的至少一个部分。 基于来自参考容器的部分的图像数据对图像数据进行归一化，使得作为造影剂的结果的图像数据中的对比几乎独立于患者特异性和检查特异性参数，以确保 可以比较来自不同时间的图像数据。

公开(公告)号：US20090274358A1

公开(公告)日：2009-11-05

申请号：US12453105

申请日：2009-04-29

Applicant: Thomas Flohr ,  Bernhard Krauss ,  Bernhard Schmidt

Inventor： Thomas Flohr ,  Bernhard Krauss ,  Bernhard Schmidt

IPC: G06K9/00

CPC classification number: A61B6/481 ,  A61B6/032 ,  A61B6/4014 ,  A61B6/405 ,  A61B6/482 ,  A61B6/5235 ,  G06T5/50 ,  G06T2207/30101

Abstract: A method and a correspondingly configured tomography scanner are disclosed for normalizing image data with respect to a contrast in the image data produced by a contrast agent, the image data illustrating a tissue structure to be examined and at least part of a blood vessel system of an examination region connected to the tissue structure, which are at least in part permeated by the contrast agent. In an embodiment of the method, image data of the examination region is provided with the aid of the tomography scanner. At least one section of a reference vessel permeated by contrast agent is selected in the image data. The image data is normalized on the basis of image data from the section of the reference vessel such that the contrast in the image data as a result of the contrast agent is almost independent of patient-specific and examination-specific parameters in order to ensure that image data from different times can be compared.

Abstract translation: 公开了一种方法和相应配置的断层扫描仪，用于相对于由造影剂产生的图像数据中的对比度来归一化图像数据，所述图像数据示出了要检查的组织结构，以及至少部分血管系统 检查区域连接到组织结构，其至少部分地被造影剂渗透。 在该方法的一个实施例中，借助于层析成像扫描器来提供检查区域的图像数据。 在图像数据中选择由造影剂渗透的参考容器的至少一个部分。 基于来自参考容器的部分的图像数据对图像数据进行归一化，使得作为造影剂的结果的图像数据中的对比几乎独立于患者特异性和检查特异性参数，以确保 可以比较来自不同时间的图像数据。

公开(公告)号：US20100278411A1

公开(公告)日：2010-11-04

申请号：US12770825

申请日：2010-04-30

Applicant: Bernhard Krauss ,  Rainer Raupach

Inventor： Bernhard Krauss ,  Rainer Raupach

IPC: G06K9/00

CPC classification number: G06T5/009 ,  A61B6/03 ,  A61B6/507 ,  G06T5/50 ,  G06T2207/10081 ,  G06T2207/30004

Abstract: A method is disclosed for processing an output image of an examination object, with the output image having been reconstructed from measuring data acquired during a relative rotational movement between a radiation source of a computed tomography system and the examination object. An image frequency division of an output image takes place in at least a first and a second image. In at least one embodiment, the first image is changed by way of a first function, with the first function effecting a contrast intensification within the first image, and the changed first image and the second image are merged together.

Abstract translation: 公开了一种用于处理检查对象的输出图像的方法，其中输出图像已经从计算机断层摄影系统的辐射源和检查对象之间的相对旋转运动期间获取的测量数据重构。 输出图像的图像分频发生在至少第一和第二图像中。 在至少一个实施例中，通过第一功能改变第一图像，其中第一功能在第一图像内实现对比度增强，并且将改变的第一图像和第二图像合并在一起。

公开(公告)号：US08666129B2

公开(公告)日：2014-03-04

申请号：US12770825

申请日：2010-04-30

Applicant: Bernhard Krauss ,  Rainer Raupach

Inventor： Bernhard Krauss ,  Rainer Raupach

IPC: G06K9/00 ,  G06K9/62

CPC classification number: G06T5/009 ,  A61B6/03 ,  A61B6/507 ,  G06T5/50 ,  G06T2207/10081 ,  G06T2207/30004

Abstract: A method is disclosed for processing an output image of an examination object, with the output image having been reconstructed from measuring data acquired during a relative rotational movement between a radiation source of a computed tomography system and the examination object. An image frequency division of an output image takes place in at least a first and a second image. In at least one embodiment, the first image is changed by way of a first function, with the first function effecting a contrast intensification within the first image, and the changed first image and the second image are merged together.

Abstract translation: 公开了一种用于处理检查对象的输出图像的方法，其中输出图像已经从计算机断层摄影系统的辐射源和检查对象之间的相对旋转运动期间获取的测量数据重构。 输出图像的图像分频发生在至少第一和第二图像中。 在至少一个实施例中，通过第一功能改变第一图像，其中第一功能在第一图像内实现对比度增强，并且将改变的第一图像和第二图像合并在一起。

公开(公告)号：US08000510B2

公开(公告)日：2011-08-16

申请号：US12539687

申请日：2009-08-12

Applicant: Dieter Boeing ,  Bernhard Krauss ,  Stefan Kaepplinger ,  Bernhard Schmidt

Inventor： Dieter Boeing ,  Bernhard Krauss ,  Stefan Kaepplinger ,  Bernhard Schmidt

IPC: G06K9/00 ,  H01L27/146

CPC classification number: G06F19/321 ,  A61B6/02 ,  A61B6/482 ,  A61B6/545 ,  G06F19/00 ,  G16H40/63

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US20100040268A1

公开(公告)日：2010-02-18

申请号：US12539687

申请日：2009-08-12

Applicant: Dieter Boeing ,  Bernhard Krauss ,  Stefan Kaepplinger ,  Bernhard Schmidt

Inventor： Dieter Boeing ,  Bernhard Krauss ,  Stefan Kaepplinger ,  Bernhard Schmidt

IPC: G06K9/00 ,  G01T1/24

CPC classification number: G06F19/321 ,  A61B6/02 ,  A61B6/482 ,  A61B6/545 ,  G06F19/00 ,  G16H40/63

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US08364240B2

公开(公告)日：2013-01-29

申请号：US11730274

申请日：2007-03-30

Applicant: Bernhard Krauss

Inventor： Bernhard Krauss

IPC: A61B6/00

CPC classification number: 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

Abstract: 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.

Abstract translation: 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：US20090086884A1

公开(公告)日：2009-04-02

申请号：US12232523

申请日：2008-09-18

Applicant: Bernhard Krauss

Inventor： Bernhard Krauss

IPC: A61B6/00 ,  H05G1/10

CPC classification number: A61B6/504 ,  A61B6/032 ,  A61B6/4014 ,  A61B6/4241 ,  A61B6/481 ,  A61B6/482 ,  G01N2223/612

Abstract: 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.

Abstract translation: 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

Applicant: Bernhard Krauss

Inventor： Bernhard Krauss

IPC: A61B5/05

CPC classification number: 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

Abstract: 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.

Abstract translation: 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。