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1. 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.

2. 发明授权

US09044189B2 Method and computed tomography system for generating weighted tomographic image datasets 有权
标题翻译：用于生成加权断层图像数据集的方法和计算机断层摄影系统
公开(公告)号：US09044189B2
公开(公告)日：2015-06-02
申请号：US13478572
申请日：2012-05-23
申请人： Thomas Flohr , Gabriel Haras , Daniel Niederlöhner , Stefan Pflaum
发明人： Thomas Flohr , Gabriel Haras , Daniel Niederlöhner , Stefan Pflaum
IPC分类号： G06K9/00 , A61B6/00 , A61B6/03 , G01T1/29
CPC分类号： A61B6/4241 , A61B6/032 , A61B6/4233 , A61B6/482 , A61B6/5235 , G01T1/2985
摘要： A method and a computed tomography system are disclosed for generating tomographic image datasets of a measurement object. The computed tomography system includes at least two simultaneously operable sets of detector elements which jointly scan a measurement object from a multiplicity of projection angles in an integrating manner on the one hand and an energy-resolving manner on the other hand. In at least one embodiment, the method includes determining a first projection dataset from measurement data recorded in an integrating manner. Further, at least one second projection dataset is determined from energy-resolved measurement data, and in addition a weighted tomographic result image dataset is calculated based on weighted use of the first and the second projection dataset, the weighting being applied to the projection data or the tomographic image data reconstructed therefrom.
摘要翻译：公开了一种用于产生测量对象的断层图像数据集的方法和计算机断层摄影系统。计算机断层摄影系统包括至少两个可同时操作的检测器元件组，其一方面以积分方式从多个投影角度共同扫描测量对象，另一方面以能量分辨方式。在至少一个实施例中，该方法包括从以积分方式记录的测量数据确定第一投影数据集。此外，从能量分辨测量数据确定至少一个第二投影数据集，此外，基于第一和第二投影数据集的加权使用计算加权断层成像图像数据集，加权应用于投影数据或从其重建的断层图像数据。

3. 发明申请

US20140086382A1 COMBINATION OF CONTRAST MEDIUM AND MAMMOGRAPHY CT SYSTEM WITH A PRESPECIFIED ENERGY RANGE AND METHOD FOR GENERATING TOMOGRAPHIC MAMMOGRAPHY CT IMAGES BY THIS COMBINATION 有权
标题翻译：具有预定能量范围的对比介质和造影CT系统的组合以及通过该组合产生TOMOGRAPHIC MAMMOGRAPHY CT图像的方法
公开(公告)号：US20140086382A1
公开(公告)日：2014-03-27
申请号：US14028815
申请日：2013-09-17
申请人： Thomas FLOHR , Gregor JOST , Rrüdiger LAWACZECK , Hubertus PIETSCH , Bernhard SCHMIDT
发明人： Thomas FLOHR , Gregor JOST , Rrüdiger LAWACZECK , Hubertus PIETSCH , Bernhard SCHMIDT
IPC分类号： A61B6/03 , A61B6/00
CPC分类号： A61B6/502 , A61B6/032 , A61B6/4007 , A61B6/4014 , A61B6/4035 , A61B6/4042 , A61B6/481 , A61B6/482
摘要： A mammography CT system is disclosed which includes an X-ray generator; and a first radiator-detector system. A contrast medium, including an opacifying element including an absorption peak in a first energy range, is useable for tomographic imaging of a female breast of a patient. After filtering, the X-rays with a prespecified tube voltage that form at an anode, are configured to emit an X-ray spectrum having a second energy range, wherein the radiator-detector system is configured to acquire a plurality of circumferential projections around the breast. The first energy range is a part of the second energy range and the second energy range includes an upper limit of less than 70 keV and a lower limit of greater than 20 keV. A corresponding method for generating tomographic mammography CT images is also disclosed.
摘要翻译：公开了一种包括X射线发生器的乳房摄影CT系统; 和第一散热器检测器系统。包括在第一能量范围内包括吸收峰的遮光元件的造影剂可用于患者的女性乳房的层析成像。在过滤之后，在阳极处形成具有预先规定的管电压的X射线被配置为发射具有第二能量范围的X射线光谱，其中散热器 - 检测器系统被配置为获取周围的多个周向突起乳房。第一能量范围是第二能量范围的一部分，第二能量范围包括小于70keV的上限和大于20keV的下限。还公开了用于产生断层摄影乳房X线照相CT图像的相应方法。

4. 发明申请

US20120300897A1 COMPUTED TOMOGRAPHY SYSTEM WITH INTEGRATING AND COUNTING DETECTOR ELEMENTS 审中-公开
标题翻译：具有集成和计数检测器元件的计算机图像系统
公开(公告)号：US20120300897A1
公开(公告)日：2012-11-29
申请号：US13478593
申请日：2012-05-23
申请人： Thomas Flohr , Gabriel Haras , Daniel Niederlöhner , Stefan Pflaum
发明人： Thomas Flohr , Gabriel Haras , Daniel Niederlöhner , Stefan Pflaum
IPC分类号： A61B6/03
CPC分类号： A61B6/4014 , A61B6/4233 , A61B6/4241 , G16H40/63
摘要： A computed tomography system includes at least two simultaneously operatable sets of detector elements, with at least one first set of integrating detector elements being designed for integrating radiation measurement and at least one second set of counting detector elements being designed to disperse an incident radiation spectrum into at least two energy bins; and includes a computer system for controlling the CT system and at least once capturing the measurement data of the detector elements with a memory and computer programs contained therein. The computer system is provided with programming so that a first mode is provided for operating only the at least one first set of integrating detector elements and a second mode is provided for the additional or sole operation of the at least one second set of counting detector elements.
摘要翻译：计算机断层摄影系统包括至少两个可同时操作的检测器元件集合，其中至少一个第一组积分检测器元件被设计用于积分辐射测量值，并且至少一个第二组计数检测器元件被设计成将入射的辐射光谱分散到至少两个能量箱; 并且包括用于控制CT系统并且至少一次利用其中包含的存储器和计算机程序捕获检测器元件的测量数据的计算机系统。计算机系统被提供有编程，使得第一模式被提供用于仅操作至少一个第一组积分检测器元件，并且为第二组计数检测器元件的附加或唯一操作提供第二模式。

5. 发明申请

US20110103543A1 SCATTER CORRECTION BASED ON RAW DATA IN COMPUTER TOMOGRAPHY 审中-公开
标题翻译：基于计算机图像中原始数据的散射校正
公开(公告)号：US20110103543A1
公开(公告)日：2011-05-05
申请号：US12916712
申请日：2010-11-01
申请人： Thomas Flohr
发明人： Thomas Flohr
IPC分类号： A61B6/03 , G06K9/40
CPC分类号： A61B6/482 , A61B6/032 , A61B6/4014 , A61B6/507
摘要： A method is disclosed for reconstructing image data of an object under examination from measured data, with the measured data having been detected beforehand during a relative rotational movement between a radiation source of a computer tomography system and the object under examination. In at least one embodiment, a radiation scatter correction variable is determined, which is subjected to a low pass filtering. The filtered radiation scatter correction variable is connected with the measured data to correct the measured data, and image data is reconstructed from the measured data thus corrected.
摘要翻译：公开了一种用于从测量数据重建被检查对象的图像数据的方法，其中在计算机断层摄影系统的辐射源和被检查对象之间的相对旋转运动期间已经预先检测了测量数据。在至少一个实施例中，确定辐射散射校正变量，其经受低通滤波。滤波后的辐射散射校正变量与测量数据相连以校正测量数据，并根据如此校正的测量数据重构图像数据。

6. 发明授权

US07822467B2 Method for producing CT images of a cyclically moving object to be examined 有权
标题翻译：用于生成待检查的循环移动物体的CT图像的方法
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。

7. 发明申请

US20100195787A1 METHOD AND DEVICE FOR GENERATING A CT IMAGE WITH A HIGH TIME RESOLUTION 有权
标题翻译：用于产生具有高时间分辨率的CT图像的方法和装置
公开(公告)号：US20100195787A1
公开(公告)日：2010-08-05
申请号：US12695256
申请日：2010-01-28
申请人： Thomas Flohr , Rainer Raupach , Karl Stierstorfer
发明人： Thomas Flohr , Rainer Raupach , Karl Stierstorfer
IPC分类号： H05G1/60 , G06K9/00
CPC分类号： A61B6/482 , A61B6/032 , A61B6/4014 , A61B6/405 , A61B6/507 , A61B6/541
摘要： A method and a device are disclosed for generating a CT image with a high time resolution using a computed tomography scanner which has at least two recording systems which are operated at different X-ray energy spectra. In at least one embodiment of the process, CT images are firstly reconstructed in each case from a semi-rotation with the two recording systems, with irradiated lengths of the contrast agent-enriched structures and the soft tissue being calculated therefrom. Subsequently, a common X-ray energy is assumed and artificial measurement data records are calculated therefor, using the knowledge of the irradiated lengths for both recording systems at the same common X-ray energy. The artificial measurement data of respectively a quarter-rotation per recording system is then used to calculate the final CT image with a high time resolution. The method affords the use of dual-energy scans without losing the high time resolution available in dual-source systems.
摘要翻译：公开了一种用于使用计算机断层摄影扫描仪生成具有高时间分辨率的CT图像的方法和装置，该计算机断层摄影扫描仪具有在不同X射线能谱下操作的至少两个记录系统。在该过程的至少一个实施例中，首先在两个记录系统的半旋转中重建CT图像，其中计算富含造影剂的结构和软组织的照射长度。随后，假设使用常见的X射线能量，并且使用相同共同的X射线能量对两个记录系统的照射长度的知识来计算人造测量数据记录。然后使用每个记录系统的四分之一旋转的人造测量数据来计算具有高时间分辨率的最终CT图像。该方法提供双能量扫描的使用，而不会损失双源系统中可用的高时间分辨率。

8. 发明授权

US07570983B2 Method and data processing device to support diagnosis and/or therapy of a pathological change of a blood vessel 失效
标题翻译：用于支持血管病理变化诊断和/或治疗的方法和数据处理装置
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。

9. 发明授权

US07277524B2 Method for detecting and visualizing dynamic processes in an object volume 失效
标题翻译：用于检测和可视化对象卷中的动态过程的方法
公开(公告)号：US07277524B2
公开(公告)日：2007-10-02
申请号：US11169913
申请日：2005-06-30
申请人： Herbert Bruder , Thomas Flohr , Ernst Klotz , Karl Stierstorfer
发明人： Herbert Bruder , Thomas Flohr , Ernst Klotz , Karl Stierstorfer
IPC分类号： A61B6/00
CPC分类号： A61B6/032 , A61B5/1075 , A61B6/027 , A61B6/4085 , A61B6/461 , G01N23/046 , G01N2223/419 , G01N2223/612
摘要： A method is disclosed for a multislice computer assisted tomograph, capable of carrying out a spiral scan of an object volume with a pitch p selected to be small enough that each slice of the object volume is multiply detected during the spiral scan. The method includes calculating, using measured data of two temporally consecutive at least one of revolutions and half revolutions, an image of the object volume from which a change inside the object volume between the two temporally consecutive at least one of revolutions and half revolutions is directly visible. An embodiment of the method can permit, for example, the detection and visualization of dynamic processes with an enhanced time resolution.
摘要翻译：公开了一种用于多层计算机辅助断层摄影机的方法，其能够对所选择的节距p的物体体积进行螺旋扫描，所述间距p被选择为足够小，使得在螺旋扫描期间对对象体积的每个切片进行乘法检测。该方法包括使用两个时间上连续的至少一个旋转和半圈的测量数据来计算在两个时间上连续的至少一个转和半转之间的对象体积内的变化直接在其中的对象体积的图像可见。该方法的实施例可以允许例如具有增强的时间分辨率的动态过程的检测和可视化。

10. 发明授权

US07238944B2 Detector for x-ray computer tomography scanners 有权
标题翻译： x射线计算机断层扫描仪的检测器
公开(公告)号：US07238944B2
公开(公告)日：2007-07-03
申请号：US10507896
申请日：2003-03-07
申请人： Herbert Bruder , Thomas Flohr , Karl Stierstorfer
发明人： Herbert Bruder , Thomas Flohr , Karl Stierstorfer
IPC分类号： G01T1/20
CPC分类号： G01T1/2018 , G01T1/1642 , G21K1/025
摘要： A detector for x-ray computer tomography scanners, includes a number of adjacent detector lines extending in an x direction, whereby each detector line is formed from a multitude of adjacent scintillator elements. In order to increase the resolution in the z direction and to simplify the design of the detector, the surface of the scintillator elements are partially covered, which further serves to reduce the size of the aperture in the z direction.
摘要翻译：用于x射线计算机断层扫描仪的检测器包括沿x方向延伸的多个相邻的检测器线，由此每个检测器线由多个相邻的闪烁体元件形成。为了提高z方向的分辨率和简化检测器的设计，闪烁体元件的表面被部分地覆盖，这进一步用于减小孔径在z方向上的尺寸。

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