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59 条记录 (耗时 0.023 秒)

    Detector module
    42.
    发明授权
    Detector module 有权
    检测器模块

    公开(公告)号：US07196331B2

    公开(公告)日：2007-03-27

    申请号：US11033516

    申请日：2005-01-12

    申请人： Bjoern Heismann

    发明人： Bjoern Heismann

    IPC分类号： G01T1/20

    CPC分类号： G01T1/1648 ,  A61B6/032 ,  G01N23/046 ,  G01N2223/419 ,  H01L27/14658

    摘要： A detector module is proposed for producing an X-ray detector for an X-ray computed tomograph. The module includes a number of detector units, each including sensor elements arranged next to one another in the z-direction and in a phi-direction running perpendicular thereto. The detector units are held on a carrier plate in the manner of a column extending in the z-direction. In order to ensure a precise alignment of the sensor elements, the detector units are positioned on the carrier plate via a collimator element.

    摘要翻译： 提出了一种检测器模块，用于生产用于X射线计算机断层摄影机的X射线检测器。 模块包括多个检测器单元，每个检测器单元包括在z方向上彼此相邻布置的传感器元件以及垂直于其的方向。 检测器单元以沿z方向延伸的列的方式保持在承载板上。 为了确保传感器元件的精确对准，检测器单元经由准直器元件定位在载体板上。

    Detector bar or detector formed from a number of detector bars, and computed-tomography unit with such a detector
    43.
    发明申请
    Detector bar or detector formed from a number of detector bars, and computed-tomography unit with such a detector 有权
    由许多检测器棒形成的检测棒或检测器，以及具有这种检测器的计算机断层摄影单元

    公开(公告)号：US20060124856A1

    公开(公告)日：2006-06-15

    申请号：US11287360

    申请日：2005-11-28

    申请人： Bjoern Heismann

    发明人： Bjoern Heismann

    IPC分类号： G01T1/24

    CPC分类号： G01T1/2985 ,  G01N23/046 ,  G01N2223/419 ,  G01T1/166 ,  G01T1/2928

    摘要： A detector bar, a detector formed from a number of detector bars, and a computed-tomography unit including such a detector is disclosed, each detector bar being formed from a number of individual modules. A detector bar has a module carrier for mechanically retaining the individual modules, and a printed circuit board, structurally separate from the module carrier, for making electric contact with the individual modules. The individual modules can thus be exchanged without disturbance, and simple aligning of the individual modules can thus be carried out while electric contact is simultaneously made.

    摘要翻译： 公开了一种检测器条，由许多检测器棒形成的检测器和包括这种检测器的计算机断层摄影单元，每个检测器条由多个单独的模块形成。 检测器杆具有用于机械地保持各个模块的模块载体，以及结构上与模块载体分离的印刷电路板，用于与各个模块进行电接触。 因此，可以不扰乱地交换各个模块，从而可以在同时进行电接触的同时进行各个模块的简单对准。

    Imaging method and apparatus for visualizing coronary heart diseases, in particular instances of myocardial infarction damage
    44.
    发明申请
    Imaging method and apparatus for visualizing coronary heart diseases, in particular instances of myocardial infarction damage 审中-公开
    用于可视化冠心病的成像方法和装置，特别是心肌梗塞损伤的情况

    公开(公告)号：US20060122500A1

    公开(公告)日：2006-06-08

    申请号：US11274203

    申请日：2005-11-16

    申请人： Bjoern Heismann ,  Andreas Mahnken

    发明人： Bjoern Heismann ,  Andreas Mahnken

    IPC分类号： A61B5/05

    CPC分类号： G06T7/0012 ,  A61B1/00045 ,  A61B6/032 ,  A61B6/4014 ,  A61B6/4035 ,  A61B6/482 ,  A61B6/503 ,  G06T2207/30048

    摘要： An imaging method and an apparatus for visualizing coronary heart diseases, in particular instances of myocardial infarction damage, are disclosed. The technique of computed tomography is used to record and reconstruct at least one image of the heart or a region of the heart, which image covers at least one part of the myocardium. Areas in the region of the myocardium that are defectively perfused and/or damaged are segmented by windowing measured data for the image or data derived therefrom, and displayed with identification in the image. It is thus possible, for example, to pictorially display the extent of the damage after a myocardial infarct.

    摘要翻译： 公开了用于可视化冠心病的成像方法和装置，特别是心肌梗塞损伤的情况。 计算机断层扫描技术用于记录和重建心脏或心脏区域的至少一个图像，该图像覆盖心肌的至少一部分。 缺陷灌注和/或损伤的心肌区域的区域通过加窗图像的测量数据或从其导出的数据进行分割，并以图像中的识别显示。 因此，例如，可以在心肌梗死后图形显示损伤的程度。

    Calibration of the transformation of spectral X-ray attenuation values in density and atomic number information
    45.
    发明授权
    Calibration of the transformation of spectral X-ray attenuation values in density and atomic number information 失效
    校正光谱X射线衰减值在密度和原子序数信息中的变换

    公开(公告)号：US06997610B2

    公开(公告)日：2006-02-14

    申请号：US10772241

    申请日：2004-02-06

    申请人： Bjoern Heismann

    发明人： Bjoern Heismann

    IPC分类号： G01D18/00

    CPC分类号： A61B6/583 ,  A61B6/482 ,  G01N23/06 ,  Y10S378/901

    摘要： A method is for calibration of a transformation of at least two X-ray attenuation values (which are determined using different X-ray spectra) for a material, to a value for the density and a value for the atomic number of the material. A first distribution is recorded of first X-ray attenuation values obtained from a calibration phantom using a first X-ray spectrum, and a second distribution is recorded of second X-ray attenuation values obtained from the calibration phantom using a second X-ray spectrum. The recorded X-ray attenuation values are used to produce a density function and to produce an atomic number function. A value for the density and for the atomic number of the calibration sample is determined with the aid of the density function and the atomic number function, and a discrepancy between the determined values and the actual density and atomic number of the calibration sample is found. The discrepancy is used for producing a mapping rule which changes the values determined by the density function and the atomic number function to the actual values.

    摘要翻译： 一种方法是用于校准材料的至少两个X射线衰减值（其使用不同的X射线光谱确定）的变换，以及材料的原子序数的值。 记录使用第一X射线光谱从校准体模获得的第一X射线衰减值的第一分布，并且使用第二X射线光谱记录从校准体模获得的第二X射线衰减值的第二分布 。 记录的X射线衰减值用于产生密度函数并产生原子序数函数。 借助于密度函数和原子序数函数确定校准样品的密度和原子序数值，并且发现确定的值与校准样品的实际密度和原子序数之间的差异。 该差异用于产生将由密度函数和原子序数函数确定的值改变为实际值的映射规则。

    Method for reconstructing tomograms from detector measured data of a tomography unit
    46.
    发明申请
    Method for reconstructing tomograms from detector measured data of a tomography unit 审中-公开
    从断层扫描单元的检测器测量数据重建断层图像的方法

    公开(公告)号：US20060013354A1

    公开(公告)日：2006-01-19

    申请号：US11181734

    申请日：2005-07-15

    申请人： Bjoern Heismann

    发明人： Bjoern Heismann

    IPC分类号： H05G1/60 ,  A61B6/00 ,  G01N23/00 ,  G21K1/12

    CPC分类号： G06T11/006 ,  A61B6/027 ,  A61B6/032 ,  A61B6/482 ,  G06T2211/408 ,  G06T2211/424

    摘要： A reconstruction method is used in computed tomography, wherein an examination object is scanned with a beam that rotates during scanning about a system axis. In the method, firstly the absorption coefficients of subvolumes relatively remote from the system axis are determined. Subsequently the absorption coefficients of the subvolumes situated relatively nearer to the system axis are determined iteratively, taking account of the absorption coefficients already calculated.

    摘要翻译： 在计算机断层摄影中使用重建方法，其中使用在围绕系统轴的扫描期间旋转的光束扫描检查对象。 在该方法中，首先确定相对远离系统轴的子体积的吸收系数。 随后，考虑到已经计算的吸收系数，迭代地确定位于相对更靠近系统轴的子体积的吸收系数。

    Method and device for determining the type of fluid in a fluid mass in an object
    47.
    发明申请
    Method and device for determining the type of fluid in a fluid mass in an object 有权
    用于确定物体中的流体质量中的流体类型的方法和装置

    公开(公告)号：US20050084063A1

    公开(公告)日：2005-04-21

    申请号：US10964916

    申请日：2004-10-15

    申请人： Bjoern Heismann ,  Andreas Mahnken

    发明人： Bjoern Heismann ,  Andreas Mahnken

    IPC分类号： A61B6/00 ,  A61B6/03 ,  G01N23/06

    CPC分类号： A61B6/508 ,  A61B6/032 ,  A61B6/482 ,  A61B6/50 ,  A61B6/505 ,  A61B6/583

    摘要： A method and a device are proposed for determining the type of fluid in a fluid mass in an object. X-ray attenuation data is supplied from one or a plurality of X-ray recordings of an object area including the fluid mass in the object, which were acquired with at least two different X-ray spectra or detector weightings. The X-ray attenuation data is used to determine values for effective atomic number and density for the fluid mass and average these to obtain a mean value for effective atomic number and density for the fluid mass. Comparison data is also supplied, which indicates fluctuation ranges for combinations of effective atomic number and density for different types of fluid. The mean values for effective atomic number and density of the fluid mass are compared with the comparison data to determine the fluctuation range and thereby the type of fluid, into which the two mean values fall. The method and associated device can be used to determine the type of fluid in a fluid mass in an object in a reliable and unambiguous manner.

    摘要翻译： 提出了一种用于确定物体中的流体质量中的流体类型的方法和装置。 X射线衰减数据从包含物体中的流体质量的物体区域的一个或多个X射线记录提供，该X射线记录用至少两个不同的X射线光谱或检测器加权获得。 X射线衰减数据用于确定流体质量的有效原子数和密度的值，并且平均这些值以获得流体质量的有效原子数和密度的平均值。 还提供比较数据，其指示用于不同类型的流体的有效原子数和密度的组合的波动范围。 将流体质量的有效原子序数和密度的平均值与比较数据进行比较，以确定波动范围，从而确定两个平均值下降的流体类型。 该方法和相关装置可用于以可靠和明确的方式确定物体中流体质量中的流体类型。

    Detector bar or detector formed from a number of detector bars, and computed-tomography unit with such a detector
    49.
    发明授权
    Detector bar or detector formed from a number of detector bars, and computed-tomography unit with such a detector 有权
    由许多检测器棒形成的检测棒或检测器，以及具有这种检测器的计算机断层摄影单元

    公开(公告)号：US07728298B2

    公开(公告)日：2010-06-01

    申请号：US11287360

    申请日：2005-11-28

    申请人： Bjoern Heismann

    发明人： Bjoern Heismann

    IPC分类号： G01T1/00

    CPC分类号： G01T1/2985 ,  G01N23/046 ,  G01N2223/419 ,  G01T1/166 ,  G01T1/2928

    摘要： A detector bar, a detector formed from a number of detector bars, and a computed-tomography unit including such a detector is disclosed, each detector bar being formed from a number of individual modules. A detector bar has a module carrier for mechanically retaining the individual modules, and a printed circuit board, structurally separate from the module carrier, for making electric contact with the individual modules. The individual modules can thus be exchanged without disturbance, and simple aligning of the individual modules can thus be carried out while electric contact is simultaneously made.

    摘要翻译： 公开了一种检测器条，由许多检测器棒形成的检测器和包括这种检测器的计算机断层摄影单元，每个检测器条由多个单独的模块形成。 检测器杆具有用于机械地保持各个模块的模块载体，以及结构上与模块载体分离的印刷电路板，用于与各个模块进行电接触。 因此，可以不扰乱地交换各个模块，从而可以在同时进行电接触的同时进行各个模块的简单对准。