公开(公告)号：US07433444B2

公开(公告)日：2008-10-07

申请号：US11700060

申请日：2007-01-31

Applicant: Joachim Baumann ,  Christian David ,  Martin Engelhardt ,  Jörg Freudenberger ,  Eckhard Hempel ,  Martin Hoheisel ,  Thomas Mertelmeier ,  Franz Pfeiffer ,  Stefan Popescu ,  Manfred Schuster

Inventor： Joachim Baumann ,  Christian David ,  Martin Engelhardt ,  Jörg Freudenberger ,  Eckhard Hempel ,  Martin Hoheisel ,  Thomas Mertelmeier ,  Franz Pfeiffer ,  Stefan Popescu ,  Manfred Schuster

IPC: G21K1/00

CPC classification number: A61B6/032 ,  A61B6/06 ,  A61B6/4021 ,  A61B6/4092 ,  A61B6/4291 ,  A61B6/484 ,  A61B6/508 ,  G21K2207/005

Abstract: A focus-detector arrangement of an X-ray apparatus is disclosed for generating projective or tomographic phase contrast recordings of an observed region of a subject. In at least one embodiment, the arrangement includes a radiation source which emits a coherent or quasi-coherent X-radiation and irradiates the subject, a phase grating which is arranged behind the subject in the beam path of the radiation source and generates an interference pattern of the X-radiation in a predetermined energy range, and an analysis-detector system which detects at least the interference pattern generated by the phase grating in respect of its phase shift with position resolution. Further, the beam path of the X-radiation used diverges in at least one plane between the focus and the detector.

Abstract translation: 公开了用于产生被摄体的观察区域的投影或层析相位对比记录的X射线装置的聚焦检测器装置。 在至少一个实施例中，该装置包括发射相干或准相干X射线并照射对象的辐射源，布置在辐射源的光束路径中的被摄体后面的相位光栅，并产生干涉图案 的X射线在预定能量范围内的分析检测器系统，以及分析检测器系统，其至少检测相位光栅相对于其相移与位置分辨率产生的干涉图案。 此外，所使用的X辐射的光束路径在焦点和检测器之间的至少一个平面中发散。

公开(公告)号：US07386091B2

公开(公告)日：2008-06-10

申请号：US11260361

申请日：2005-10-28

Applicant: Martin Hoheisel

Inventor： Martin Hoheisel

IPC: A61B6/04

CPC classification number: A61B6/502 ,  A61B6/4233

Abstract: To adapt with low outlay to different patient sizes, an X-ray mammography machine is disclosed, including a digital, substantially rectangular flat solid state detector delimited by two parallel longitudinal edges and two parallel, shorter transverse edges. The flat solid state detector can be adjusted in such a way that a longitudinal edge can be positioned parallel to a chest wall of a female patient in a first position, and a transverse edge can be positioned parallel to the chest wall of the female patient in a second position.

Abstract translation: 为了适应不同患者体积的低成本，公开了一种X射线乳腺摄影机，其包括由两个平行的纵向边缘和两个平行的较短的横向边缘限定的数字，基本为矩形的扁平固态检测器。 扁平状态检测器可以以这样的方式进行调节，使得纵向边缘可以在第一位置平行于女性患者的胸壁定位，并且横向边缘可以平行于女性患者的胸壁定位 第二个位置

公开(公告)号：US20080044073A1

公开(公告)日：2008-02-21

申请号：US11809276

申请日：2007-05-31

Applicant: Philipp Bernhardt ,  Estelle Camus ,  Martin Hoheisel ,  Thomas Redel

Inventor： Philipp Bernhardt ,  Estelle Camus ,  Martin Hoheisel ,  Thomas Redel

IPC: G06K9/00

CPC classification number: G01N23/04 ,  A61B6/4241 ,  A61B6/481 ,  A61B6/482 ,  A61B6/504 ,  A61B6/507 ,  G06T2207/30101

Abstract: A sequence of groups of projection images shows an object under examination comprising a vascular system and its environment. A computer determines a 2-dimensional evaluation image having a plurality of pixels based on combination images determined from the projection images of a group. The combination images have a plurality of pixels with pixel values. The sequence of the combination images shows the time characteristic of the distribution of a contrast medium in the object. The pixels of the evaluation image correspond to those of the projection images. The computer assigns each pixel, at least in a part area of the evaluation image, a type that is characteristic of whether the respective pixel corresponds to a vessel of the vascular system, a perfusion area or a background. It performs the assignment of the type on the basis of the time characteristic of the pixel values of the combination images.

Abstract translation: 一组投影图像的一系列显示一个被检查的物体，包括血管系统及其环境。 基于从组的投影图像确定的组合图像，计算机确定具有多个像素的二维评估图像。 组合图像具有多个具有像素值的像素。 组合图像的顺序示出了对象中造影剂的分布的时间特性。 评估图像的像素对应于投影图像的像素。 计算机至少在评估图像的一部分区域中分配每个像素，其特征在于各个像素是否对应于血管系统的血管，灌注区域或背景。 它根据组合图像的像素值的时间特性来执行类型的分配。

公开(公告)号：US20070189449A1

公开(公告)日：2007-08-16

申请号：US11700061

申请日：2007-01-31

Applicant: Joachim Baumann ,  Martin Engelhardt ,  Jorg Freudenberger ,  Eckhard Hempel ,  Martin Hoheisel ,  Thomas Mertelmeier ,  Stefan Popescu ,  Manfred Schuster

Inventor： Joachim Baumann ,  Martin Engelhardt ,  Jorg Freudenberger ,  Eckhard Hempel ,  Martin Hoheisel ,  Thomas Mertelmeier ,  Stefan Popescu ,  Manfred Schuster

IPC: G01N23/223 ,  G01T1/36

CPC classification number: G01N23/20 ,  A61B6/4021 ,  A61B6/4092 ,  A61B6/482 ,  A61B6/484 ,  G01N23/22 ,  G21K2207/005

Abstract: A method and a measuring arrangement are disclosed for nondestructive analysis of an examination object. In at least one embodiment of the method, x-radiation having a specific energy spectrum is generated by an x-ray source, with the aid of at least one x-ray/optical grating in the beam path of the x-radiation there is generated a standing wave field of this x-radiation that is positioned at least partially in the examination object, and the radiation excited by the x-ray standing wave field in the examination object is measured as a function of at least one relative position between the examination object and the x-ray standing wave field. Further, a material distribution in the examination object is inferred from the measurement result of the radiation excited by the x-ray standing wave field.

Abstract translation: 公开了用于检查对象的非破坏性分析的方法和测量装置。 在该方法的至少一个实施例中，具有特定能谱的x射线由x射线源产生，借助于X辐射的光束路径中的至少一个x射线/光栅， 产生至少部分地位于检查对象中的该X射线的驻波场，并且由检查对象中的x射线驻波场激发的辐射作为至少一个相对位置 检查对象和X射线驻波场。 此外，从X射线驻波激励的辐射的测量结果推断检查对象中的材料分布。

公开(公告)号：US20070183582A1

公开(公告)日：2007-08-09

申请号：US11700154

申请日：2007-01-31

Applicant: Joachim Baumann ,  Christian David ,  Martin Engelhardt ,  Jorg Freudenberger ,  Eckhard Hempel ,  Martin Hoheisel ,  Thomas Mertelmeier ,  Franz Pfeiffer ,  Stefan Popescu ,  Manfred Schuster

Inventor： Joachim Baumann ,  Christian David ,  Martin Engelhardt ,  Jorg Freudenberger ,  Eckhard Hempel ,  Martin Hoheisel ,  Thomas Mertelmeier ,  Franz Pfeiffer ,  Stefan Popescu ,  Manfred Schuster

IPC: G21K1/00

CPC classification number: G01N23/046 ,  A61B6/4092 ,  A61B6/4291 ,  A61B6/484 ,  G01N2223/419 ,  G01N2223/612 ,  G21K1/06 ,  G21K2207/005

Abstract: A focus-detector arrangement of an X-ray apparatus is disclosed for generating projective or tomographic phase contrast recordings with a phase grating. According to at least one embodiment of the invention, in the gaps between its bars, the phase grating includes a filler material whose linear attenuation coefficient in the relevant energy range is greater than that of the bars. The height of the filler material in the gaps is dimensioned on the one hand so that the X-radiation with the energy used for measuring the phase shift generates a phase shift in the X-radiation such that, after the phase grating, the rays which pass through the bars are phase shifted by one half wavelength relative to the rays which pass through the gaps with the filler material. Further, the height of the filler material in the gaps on the other hand is dimensioned so that the attenuation of the X-radiation, at least in relation to the energy used for measuring the phase shift, is the same when passing through the bars and when passing through the filler material.

Abstract translation: 公开了一种用于利用相位光栅产生投射或断层相位对比度记录的X射线装置的聚焦检测器装置。 根据本发明的至少一个实施例，在其杆之间的间隙中，相位光栅包括其相关能量范围内的线性衰减系数大于棒的线性衰减系数的填充材料。 间隙中的填充材料的高度一方面确定尺寸，使得具有用于测量相移的能量的X射线在X辐射中产生相移，使得在相位光栅之后，射线 通过条相对于通过填充材料的间隙的光线相移一半波长。 此外，另一方面，间隙中的填充材料的高度的尺寸被设计成使得至少相对于用于测量相移的能量的X射线的衰减在通过杆时是相同的，并且 当通过填料时。

公开(公告)号：US20070183579A1

公开(公告)日：2007-08-09

申请号：US11700139

申请日：2007-01-31

Applicant: Joachim Baumann ,  Christian David ,  Martin Engelhardt ,  Jorg Freudenberger ,  Eckhard Hempel ,  Martin Hoheisel ,  Thomas Mertelmeier ,  Franz Pfeiffer ,  Stefan Popescu ,  Manfred Schuster

Inventor： Joachim Baumann ,  Christian David ,  Martin Engelhardt ,  Jorg Freudenberger ,  Eckhard Hempel ,  Martin Hoheisel ,  Thomas Mertelmeier ,  Franz Pfeiffer ,  Stefan Popescu ,  Manfred Schuster

IPC: G03F1/00 ,  G21K1/00

CPC classification number: G21K1/06 ,  A61B6/4092 ,  A61B6/4291 ,  A61B6/484 ,  G21K2207/005

Abstract: An X-ray optical transmission grating of a focus-detector arrangement of an X-ray apparatus is disclosed, for generating projective or tomographic phase contrast recordings of a subject. In at least one embodiment, the grating includes a multiplicity of grating bars and grating gaps arranged periodically on at least one surface of at least one wafer, wherein the X-ray optical transmission grating includes at least two sub-gratings arranged in direct succession in the beam direction.

Abstract translation: 公开了一种用于产生被摄体的投影或层析相位对比记录的X射线装置的聚焦检测器装置的X射线光传输光栅。 在至少一个实施例中，光栅包括在至少一个晶片的至少一个表面周期性地布置的多个光栅条和光栅间隙，其中X射线光传输光栅包括直接相继布置的至少两个子光栅 光束方向。

公开(公告)号：US07221737B2

公开(公告)日：2007-05-22

申请号：US11282372

申请日：2005-11-17

Applicant: Martin Hoheisel ,  Hartmut Sklebitz

Inventor： Martin Hoheisel ,  Hartmut Sklebitz

IPC: G21K1/00

CPC classification number: G21K1/025 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y70/00 ,  B33Y80/00 ,  G21K1/10

Abstract: A scattered radiation grid for absorbing secondary radiation scattered by an object comprises a support, and a plurality of spaced-apart absorbing elements affixed to the support. The plurality of absorbing elements comprises relatively small tubes or pins affixed to the support via plug-in or clamping fixtures.

Abstract translation: 用于吸收由物体散射的次级辐射的散射辐射网格包括支撑件和固定到支撑件上的多个间隔开的吸收元件。 多个吸收元件包括通过插入或夹紧固定件固定到支撑件上的较小管或销。

公开(公告)号：US20070093711A1

公开(公告)日：2007-04-26

申请号：US11584544

申请日：2006-10-23

Applicant: Martin Hoheisel ,  Wolfgang Harer ,  Holger Kunze ,  Karl Stierstorfer

Inventor： Martin Hoheisel ,  Wolfgang Harer ,  Holger Kunze ,  Karl Stierstorfer

IPC: A61B5/05

CPC classification number: G01N23/046 ,  A61B6/032 ,  A61B6/583 ,  G01N2223/419 ,  G01N2223/612 ,  G06T11/005 ,  G06T2211/421 ,  G06T2211/424

Abstract: A method is disclosed for reconstructing a tomographic representation of an object from projection data off a moving radiation source through this object onto a detector, filtering and back projection of the projection data being executed in the reconstruction. In an embodiment of the method, by using at least one identical spatial arrangement of the radiation source, the detector and a test object instead of the object to be scanned, there is determined by test projections and an iterative reconstruction technique, a filter that in the given arrangement results in an optimum filtering and back projection of the projection data of the test object for the tomographic representation. Further, the object is scanned instead of the test object in the given arrangement and projection data are determined. Finally, the reconstruction of the tomographic representation is carried out using these projection data and the filter determined. Moreover, an embodiment of a tomography unit for carrying out this method is also disclosed.

Abstract translation: 公开了一种用于将通过该物体的运动辐射源的投影数据从物体重建成检测器的方法，对重建中正在执行的投影数据进行滤波和反投影。 在该方法的一个实施例中，通过使用辐射源，检测器和测试对象的至少一个相同的空间排列而不是要扫描的对象，通过测试投影和迭代重建技术来确定滤波器， 给定的布置导致用于断层图像的测试对象的投影数据的最佳滤波和反投影。 此外，在给定的布置中扫描对象而不是测试对象，并且确定投影数据。 最后，使用这些投影数据并确定滤波器来进行断层图像的重建。 此外，还公开了用于执行该方法的断层摄影单元的实施例。

公开(公告)号：US07149283B2

公开(公告)日：2006-12-12

申请号：US10655025

申请日：2003-09-05

Applicant: Martin Hoheisel ,  Martin Schaefer ,  Hartmut Sklebitz

Inventor： Martin Hoheisel ,  Martin Schaefer ,  Hartmut Sklebitz

IPC: G21K1/02 ,  B29C35/04 ,  B29C35/08

CPC classification number: G21K1/10 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y80/00 ,  G21K1/025

Abstract: A method is for producing and applying an antiscatter grid or collimator to an x-ray or gamma detector having matricially arranged detector elements which form a detector surface with detection regions sensitive to x-radiation and/or gamma radiation and less sensitive intermediate regions. In the method, a basic structure is firstly produced for the antiscatter grid or collimator by way of a rapid prototyping technique, through which transmission channels and intermediate walls of the antiscatter grid or collimator are formed which have at least in a first direction a center-to-center spacing which is equal to or an integral multiple of a center-to-center spacing of the sensitive detection regions of the detector. The intermediate walls are coated with a material which strongly absorbs x-radiation and/or gamma radiation in order to finish the antiscatter grid or collimator. Subsequently, the antiscatter grid or collimator is applied to the detector surface and connected to the detector surface in such a way that at least the intermediate walls running perpendicular to the first direction, or their coating, are situated over the less sensitive intermediate regions of the detector surface. A detector having an antiscatter grid or collimator in which no moiré interference occurs can thus be realized in a simple way.

Abstract translation: 一种方法是用于产生和应用反散射栅格或准直器到具有基本布置的检测器元件的x射线或伽马检测器，该检测器元件形成具有对x辐射和/或γ辐射敏感的检测区域和较不敏感的中间区域的检测器表面。 在该方法中，首先通过快速成型技术为反散射栅格或准直器生成基本结构，通过该基本结构形成反散射栅格或准直器的透射通道和中间壁，其至少在第一方向上具有中心 - 中心间距等于检测器的敏感检测区域的中心到中心间隔的整数倍。 中间壁涂覆有强烈吸收x辐射和/或γ辐射的材料，以完成反散射栅格或准直仪。 随后，将反散射栅格或准直器施加到检测器表面并连接到检测器表面，使得至少垂直于第一方向延伸的中间壁或其涂层位于不太敏感的中间区域 探测器表面。 因此，能够以简单的方式实现具有不发生莫尔干扰的反散射栅格或准直仪的检测器。

公开(公告)号：US20060182221A1

公开(公告)日：2006-08-17

申请号：US11352716

申请日：2006-02-13

Applicant: Philipp Bernhardt ,  Martin Hoheisel

Inventor： Philipp Bernhardt ,  Martin Hoheisel

IPC: H05G1/22

CPC classification number: A61B6/542 ,  A61B6/503 ,  A61B6/545

Abstract: The invention relates to an x-ray diagnostics device having an x-ray tube for generating x-rays operated by a high voltage generator, having an x-ray detector for converting incident x-rays into electrical signals, having an image processing system and a control device for the duration of the x-ray pulse, in which parameters of the x-ray diagnostics device can be adjusted, with a computing unit being assigned to the control device, said computing unit determining the spatial frequency-dependent signal-to-noise ratio on the basis of the parameters and calculating therefrom the duration of the x-ray pulse and/or the remaining parameters required for a recording. The invention further relates to a method of this type for controlling the x-ray diagnostics device, in which the duration of the x-ray pulse is controlled such that the recognizability of relevant, moved objects is maximal.

Abstract translation: 本发明涉及一种具有用于产生由高压发生器操作的x射线的X射线管的X射线诊断装置，具有用于将入射的X射线转换为电信号的X射线检测器，具有图像处理系统和 控制装置，其中X射线脉冲的持续时间可以通过计算单元被分配给控制装置来调节x射线诊断装置的参数，所述计算单元确定空间频率相关信号到 - 根据参数计算噪声比，并从中计算x射线脉冲的持续时间和/或记录所需的剩余参数。 本发明还涉及这种类型的用于控制X射线诊断装置的方法，其中控制x射线脉冲的持续时间，使得相关的被移动物体的可识别性是最大的。