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61. 发明授权

US08724773B2 Method and X-ray system for processing an X-ray image 有权
标题翻译：用于处理X射线图像的方法和X射线系统
公开(公告)号：US08724773B2
公开(公告)日：2014-05-13
申请号：US13101732
申请日：2011-05-05
申请人： Oliver Baruth , Philipp Bernhardt , Richard Obler
发明人： Oliver Baruth , Philipp Bernhardt , Richard Obler
IPC分类号： G01N23/04
CPC分类号： A61B6/5258 , A61B6/4441 , G06T5/003 , G06T2207/10116
摘要： To improve the quality of x-ray images, IN a method to process an x-ray image, a mathematical correction of the x-ray image is implemented, wherein the correction at least partially removes from the x-ray image the locally dependent blurring caused by a projection direction-dependent, effective optical focus size of an x-ray tube used to acquire the x-ray image.
摘要翻译：为了提高x射线图像的质量，在一种处理X射线图像的方法中，实现了x射线图像的数学校正，其中校正至少部分地从x射线图像中去除局部依赖的模糊由用于获取x射线图像的X射线管的投射方向相关的有效光学焦距尺寸引起。

62. 发明申请

US20120300905A1 Method for obtaining image data with the aid of an x-ray image recording apparatus having a filter and an x-ray image recording apparatus 有权
标题翻译：借助于具有滤光器和X射线图像记录装置的X射线图像记录装置获得图像数据的方法
公开(公告)号：US20120300905A1
公开(公告)日：2012-11-29
申请号：US13477092
申请日：2012-05-22
申请人： Philipp Bernhardt , Stefan BÖHM , Richard OBLER
发明人： Philipp Bernhardt , Stefan BÖHM , Richard OBLER
IPC分类号： G01N23/04
CPC分类号： A61B6/4035 , A61B6/542 , A61B6/58
摘要： A method to optimally set a position of a form filter in an x-ray image recording apparatus is proposed. The x-ray image recording apparatus has an x-ray radiation source and an x-ray radiation detector. An x-ray image is firstly recorded in a first position of the form filter. A new position of the filter is then calculated and automatically set with the aid of the x-ray image. A new x-ray image is then recorded. With a minimal dose of a patient, the method enables low contrast images to be recorded for a minimal main dose of the patient, in particular in a sequence.
摘要翻译：提出了一种最佳地设置X射线图像记录装置中的形状滤波器的位置的方法。 x射线图像记录装置具有x射线辐射源和x射线辐射检测器。首先将X射线图像记录在形式过滤器的第一位置。然后计算滤镜的新位置并借助X射线图像自动设定。然后记录新的X射线图像。使用患者的最小剂量，该方法使得能够记录患者的最小主剂量的低对比度图像，特别是在序列中。

63. 发明授权

US08270571B2 Radiation source, imaging system, and operating method to determine and produce a radiation focal spot having an asymmetrical power input profile 有权
标题翻译：辐射源，成像系统和操作方法来确定和产生具有不对称功率输入分布的辐射焦点
公开(公告)号：US08270571B2
公开(公告)日：2012-09-18
申请号：US12789798
申请日：2010-05-28
申请人： Philipp Bernhardt , Matthias Seufert
发明人： Philipp Bernhardt , Matthias Seufert
IPC分类号： G01N23/04 , H01J35/14
CPC分类号： H01J35/06 , H01J35/14 , H01J35/26 , H01J2235/06
摘要： A radiation source for a radiation-based image acquisition device has an electron emitter to generate a focal spot for x-ray generation at a rotating anode. An arrangement is provided to generate an asymmetrical power input profile of the focal spot parallel to the movement direction of the rotating anode.
摘要翻译：用于基于辐射的图像采集装置的辐射源具有电子发射器，以在旋转阳极处产生用于x射线产生的焦点。提供了一种布置以产生平行于旋转阳极移动方向的焦斑的非对称功率输入分布。

64. 发明授权

US08199162B2 Contrast increase in X-ray projection images and/or in tomographically reconstructed volumes by deconvolution of the projection images 有权
标题翻译：通过投射图像的去卷积，X射线投影图像和/或层析成像重建体积对比增加
公开(公告)号：US08199162B2
公开(公告)日：2012-06-12
申请号：US12549039
申请日：2009-08-27
申请人： Philipp Bernhardt , Bernhard Scholz
发明人： Philipp Bernhardt , Bernhard Scholz
IPC分类号： G09G5/00
CPC分类号： A61B6/032 , A61B6/4441 , A61B6/466 , A61B6/5235 , G06T5/003
摘要： The invention relates to a method and a device for increasing contrast in medical images generated by an imaging system featuring an x-ray source and a detector. The detector detects x-rays of the x-ray source and converts image signals from the x-rays. The image signals are transferred to a control and processing unit for processing. Deconvolution of the image signals is carried out by application of an inverse modulation transfer function modified by a regularization. At least a volume image can be reconstructed from the deconvolved image signals.
摘要翻译：本发明涉及一种用于增加由具有X射线源和检测器的成像系统产生的医学图像中的对比度的方法和装置。检测器检测X射线源的X射线并转换来自X射线的图像信号。图像信号被传送到控制和处理单元进行处理。通过应用由正则化修正的逆调制传递函数来执行图像信号的去卷积。可以从解卷积图像信号中重构体积图像。

65. 发明申请

US20110299658A1 X-RAY RADIATOR TO GENERATE QUASI-MONOCHROMATIC X-RAY RADIATION, AND RADIOGRAPHY X-RAY ACQUISITION SYSTEM EMPLOYING SAME 有权
标题翻译： X射线辐射器产生准单色X射线辐射，以及使用其的放射X射线摄取系统
公开(公告)号：US20110299658A1
公开(公告)日：2011-12-08
申请号：US13154746
申请日：2011-06-07
申请人： Philipp Bernhardt
发明人： Philipp Bernhardt
IPC分类号： G21K1/06
CPC分类号： G21K1/06 , A61B6/4035 , A61B6/4441 , A61B6/544 , B82Y10/00 , G21K2201/061 , G21K2201/062 , G21K2201/067
摘要： For a quasi-monochromatic x-ray radiation with high radiation intensity, an x-ray radiator generates quasi-monochromatic x-ray radiation to expose a subject from a point-shaped radiation source that emits a polychromatic x-ray radiation, and having a diffraction device to diffract the polychromatic x-ray radiation. The diffraction device has a super-mirror made of crystalline material with a flat surface. In the super-mirror, the crystalline material has at least one (in particular continuous) variation of the lattice plane spacing of the crystal lattice. The radiation source and the diffraction device are arranged such that quasi-monochromatic x-ray radiation is generated from the polychromatic x-ray radiation by partial reflection at the super-mirror.
摘要翻译：对于具有高辐射强度的准单色X射线辐射，x射线辐射器产生准单色X射线辐射，以从发射多色X射线辐射的点状辐射源暴露受试者，并具有衍射装置衍射多色X射线辐射。衍射装置具有由具有平坦表面的结晶材料制成的超级反射镜。在超镜中，晶体材料具有晶格的晶格面间距的至少一个（特别是连续的）变化。辐射源和衍射装置被布置成使得通过在超镜下的部分反射从多色X射线辐射产生准单色x射线辐射。

66. 发明申请

US20110013747A1 Method for Operating an X-Ray Image Recording Device Having a Moveable X-Ray Detector on the X-Ray C-Arm 有权
标题翻译：用于操作在X射线C臂上具有可移动X射线检测器的X射线图像记录装置的方法
公开(公告)号：US20110013747A1
公开(公告)日：2011-01-20
申请号：US12836653
申请日：2010-07-15
申请人： Rosemarie Banckwitz , Philipp Bernhardt , Johannes Rieber
发明人： Rosemarie Banckwitz , Philipp Bernhardt , Johannes Rieber
IPC分类号： H05G1/64
CPC分类号： A61B6/504 , A61B6/4233 , A61B6/4441 , A61B6/587
摘要： A method for operating an x-ray image recording device having a movable x-ray detector on an-x-ray c-arm is provided. The x-ray C-arm supports an x-ray source and the x-ray detector which can be moved in the direction of the x-ray source. A variable is calculated which specifies the image quality of an x-ray image to be obtained in a position of the x-ray C-arm in a position of the x-ray detector and/or specifies the exposure dose of an operating person. A measure is taken as a function of the variable which results in a movement of the x-ray detector by the operating person and/or by an automatic movement. X-ray images are recorded in positions of the x-ray detector in which the image quality and/or the exposure dose of an operating person are optimal.
摘要翻译：提供了一种在x射线c臂上操作具有可移动X射线检测器的X射线图像记录装置的方法。 X射线C臂支撑X射线源和可以在x射线源的方向上移动的x射线检测器。计算出在X射线检测器的位置处的X射线C臂的位置中获得的x射线图像的图像质量和/或指定操作者的曝光剂量的变量。作为变量的函数的度量，其导致操作者的X射线检测器的移动和/或通过自动运动。 X射线图像被记录在x射线检测器的位置，其中操作人员的图像质量和/或曝光剂量是最佳的。

67. 发明申请

US20100303208A1 METHOD FOR RECORDING AN X-RAY IMAGE, X-RAY DETECTOR AND X-RAY SYSTEM 审中-公开
标题翻译：用于记录X射线图像，X射线探测器和X射线系统的方法
公开(公告)号：US20100303208A1
公开(公告)日：2010-12-02
申请号：US12781054
申请日：2010-05-17
申请人： Oliver Baruth , Philipp Bernhardt
发明人： Oliver Baruth , Philipp Bernhardt
IPC分类号： H05G1/64
CPC分类号： A61B6/00 , A61B6/5241 , A61B6/585 , G06T5/005 , G06T5/50 , G06T2207/10116 , G06T2207/30004
摘要： To obtain a high-quality X-ray image from X-ray detectors with defective pixels, an X-ray image of an object is recorded by an active pixel matrix of an X-ray detector from at least two partial X-ray images, in which a first partial image is recorded from picture elements in a first position and at least one second partial image is recorded from picture elements in a second position of the pixel matrix, wherein the pixel matrix has at least one defective pixel at a defect site and the positions are selected such that the active pixel matrix is situated in the same plane in all positions, each displacement of the active pixel matrix from one into another position is an integer multiple of a pixel length, and at least one non-defective pixel is positioned in at least one other position at the respective defect sites of all positions.
摘要翻译：为了从具有缺陷像素的X射线检测器获得高质量的X射线图像，通过X射线检测器的有源像素矩阵从至少两个部分X射线图像记录对象的X射线图像，其中从第一位置的图像元素记录第一部分图像，并且在像素矩阵的第二位置中从像素记录至少一个第二部分图像，其中所述像素矩阵在缺陷位置处具有至少一个缺陷像素并且选择位置使得有源像素矩阵位于所有位置的同一平面中，有源像素矩阵从一个位置到另一个位置的每个位移是像素长度的整数倍，并且至少一个无缺陷像素位于所有位置的相应缺陷位置处的至少另一个位置。

68. 发明授权

US07660390B2 X-ray diagnostics method and device 有权
标题翻译： X射线诊断方法和装置
公开(公告)号：US07660390B2
公开(公告)日：2010-02-09
申请号：US11165100
申请日：2005-06-23
申请人： Philipp Bernhardt , Klaus Klingenbeck-Regn , Michael Maschke
发明人： Philipp Bernhardt , Klaus Klingenbeck-Regn , Michael Maschke
IPC分类号： H05G1/64
CPC分类号： A61B6/504 , A61B6/4291 , A61B6/481 , A61B6/542 , G01N23/04
摘要： An x-ray diagnostics method is specified, in particular for use in angiography and cardiology, by means of which a particularly good image quality can be achieved in an easily manageable manner for the patient (P) and the medical personnel, at the same time as a comparatively low radiation exposure. Furthermore, a specific x-ray device (1) for implementing the method comprising an x-ray emitter (2), an x-ray detector (3) and a control unit (10) is specified to control the x-ray emitter (2). In this way the control unit (10) is allocated an operating element (15), by means of which a control parameter (S) characterizing the image quality, the detector input dose or the contrast noise ratio can be continuously varied, as a function of which a number of recording parameters (U,I,t,F) are set by means of the control device (10).
摘要翻译：具体说明了用于血管造影和心脏病学的x射线诊断方法，通过该X射线诊断方法可以以易于管理的方式为病人（P）和医务人员实现特别好的图像质量，同时作为相对较低的辐射照射。此外，指定用于实现包括x射线发射器（2），x射线检测器（3）和控制单元（10）的方法的特定X射线装置（1），以控制X射线发射器 2）。以这种方式，控制单元（10）被分配有操作元件（15），通过该操作元件可以连续地改变表征图像质量，检测器输入剂量或对比度噪声比的控制参数（S）作为功能其中通过控制装置（10）设定多个记录参数（U，I，t，F）。

69. 发明授权

US07469034B2 Method for analyzing and representing x-ray projection images and x-ray examination unit 有权
标题翻译：用于分析和表示X射线投影图像和X射线检查单元的方法
公开(公告)号：US07469034B2
公开(公告)日：2008-12-23
申请号：US11409419
申请日：2006-04-21
申请人： Philipp Bernhardt , Friedrich Koch , Martin Kolarjk , Ernst Peter Rührnschopf , Helmuth Schramm
发明人： Philipp Bernhardt , Friedrich Koch , Martin Kolarjk , Ernst Peter Rührnschopf , Helmuth Schramm
IPC分类号： G01N23/04 , G01T1/36 , G01T1/161
CPC分类号： G06T11/005
摘要： The invention relates to a method and an x-ray examination unit for analyzing and representing x-ray projection images with an x-ray examination unit, where the function relation bU=ƒU−1(J˜/J0) is established between the attenuation value and a material-equivalent value as a function of the energy spectrum used, and for the purposes of projection representation, the magnitude of the material-equivalent value bU of a specific material is represented as an image value.
摘要翻译：本发明涉及一种利用X射线检查单元分析和表示X射线投影图像的方法和X射线检查单元，其中在衰减之间建立了功能关系bU = fU-1（J〜/ J0）值和材料当量值作为所使用的能谱的函数，并且为了投影表示的目的，特定材料的材料等价值bU的大小被表示为图像值。

70. 发明授权

US07298882B2 Generalized measure of image quality in medical X-ray imaging 失效
标题翻译：医学X光成像中图像质量的广义测量
公开(公告)号：US07298882B2
公开(公告)日：2007-11-20
申请号：US11058025
申请日：2005-02-15
申请人： Philipp Bernhardt , Lothar Bätz , Ernst-Peter Rührnschopf , Martin Hoheisel
发明人： Philipp Bernhardt , Lothar Bätz , Ernst-Peter Rührnschopf , Martin Hoheisel
IPC分类号： G06T5/00
CPC分类号： G06T7/0002 , A61B5/02007 , A61B5/7257 , A61B6/12 , A61B6/4291
摘要： A method for defining image quality characteristics of X-ray based medical projection imaging devices is provided. A spatial frequency-dependent signal-to-noise ratio function includes image quality parameters of spatial resolution, object contrast and noise. The detectability of an object embedded into a defined background, such as a cardiac guide wire in a patient is determined. An X-ray system may be defined and set up for obtaining an optimized image quality to determine the best object detectability for a given patient dose.
摘要翻译：提供了一种用于定义基于X射线的医疗投影成像装置的图像质量特性的方法。空间频率相关信噪比函数包括空间分辨率，对象对比度和噪声的图像质量参数。确定嵌入到定义的背景中的对象的可检测性，例如患者中的心导丝。可以定义和设置X射线系统以获得优化的图像质量，以确定给定患者剂量的最佳对象检测能力。

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