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    • 1. 发明申请
    • Focus/detector system of an X-ray apparatus for generating phase contrast recordings
    • 用于产生相位记录的X射线设备的聚焦/检测器系统
    • US20070183581A1
    • 2007-08-09
    • US11700152
    • 2007-01-31
    • Bjorn HeismannEckhard HempelStefan Popescu
    • Bjorn HeismannEckhard HempelStefan Popescu
    • G03F1/00G21K1/00
    • A61B6/06A61B6/00A61B6/032A61B6/4014A61B6/4092A61B6/4233A61B6/4266A61B6/4291A61B6/4441A61B6/484G03B42/02G21K2201/06G21K2207/005
    • A focus/detector system of an X-ray apparatus is disclosed for generating projective or tomographic phase contrast recordings. In at least one embodiment, the system includes a beam source, including a focus and a focus-side source grating, arranged in the beam path to generate a field of ray-wise coherent X-rays; and a grating/detector arrangement having a phase grating with grating lines arranged parallel to the source grating for generating an interference pattern and a detector having a multiplicity of detector elements arranged flat for measuring the radiation intensity behind the phase grating. Further, the detector elements are formed by a multiplicity of elongate detection strips, which are aligned parallel to the grating lines of the phase grating. Furthermore, at least one embodiment also relates to the use of this focus/detector system in an X-ray system for generating projective recordings or in C-arc equipment or a CT system, and/or to a method for generating projective and tomographic X-ray recordings of a subject.
    • 公开了用于产生投影或层析相位对比记录的X射线装置的焦点/检测器系统。 在至少一个实施例中,系统包括布置在光束路径中以产生射线相干X射线场的束源,包括焦点和焦点侧源光栅; 以及具有相位光栅的光栅/检测器装置,其具有平行于源光栅布置的光栅线,用于产生干涉图案;以及检测器,具有平坦布置的多个检测器元件,用于测量相位光栅后面的辐射强度。 此外,检测器元件由多个细长的检测条形成,其平行于相位光栅的光栅线排列。 此外,至少一个实施例还涉及在X射线系统中用于产生投影记录或在C弧设备或CT系统中使用该焦点/检测器系统和/或用于产生投影和断层X的方法 录音的主题。
    • 5. 发明申请
    • Method for preparing reconstructed CT image data records and CT system
    • 重建CT图像数据记录和CT系统的准备方法
    • US20090257549A1
    • 2009-10-15
    • US12385498
    • 2009-04-09
    • Bjorn Heismann
    • Bjorn Heismann
    • H05G1/60G06K9/00
    • G06T11/005A61B6/507G06T2211/408
    • A method and CT system are disclosed for preparing reconstructed CT image data records. In at least one embodiment of the method, an initial material distribution of an examination object is determined from CT data records determined from among at least two different spectral weightings with local energy-determined attenuation values, and local measurement-spectrum-dependent weighting functions are determined using this material distribution, enabling local measurement-spectrum-dependent attenuation functions to be calculated, and the distribution of local reference materials to be determined, with the help of plausibility considerations, from a list of reference materials over at least one specified region of interest in the examination object on the basis of previously calculated local measurement-spectrum-dependent attenuation functions.
    • 公开了用于制备重建的CT图像数据记录的方法和CT系统。 在该方法的至少一个实施例中,从具有局部能量确定的衰减值的至少两个不同频谱权重中确定的CT数据记录确定检查对象的初始材料分布,并且本地测量频谱相关加权函数 使用此材料分配确定,可以计算本地测量频谱相关的衰减函数,以及在合理性考虑的帮助下确定的局部参考材料的分布,从至少一个指定区域的参考材料列表中 根据先前计算的局部测量频谱相关衰减函数对检查对象的兴趣。
    • 6. 发明申请
    • Device and method for cooling an X-radiation detector
    • 用于冷却X射线探测器的装置和方法
    • US20070284535A1
    • 2007-12-13
    • US11802891
    • 2007-05-25
    • Bjorn HeismannGunter Muller
    • Bjorn HeismannGunter Muller
    • G01T1/24
    • A61B6/4488A61B6/035
    • A cooling device is disclosed for a radiation detector including a detector surface and a plurality of collimator plates arranged in the direction of X-radiation before the detector surface. In order to produce the cooling device of at least one embodiment, the collimator plates are designed and/or the cooling device includes a ventilation device which is designed, so that the space between the collimator plates is at least partially exposed to a cooling air flow in order to cool the radiation detector. A corresponding method for cooling an X-radiation detector is furthermore described in at least one additional embodiment.
    • 公开了一种用于辐射检测器的冷却装置,其包括检测器表面和在检测器表面之前沿X射线方向排列的多个准直器板。 为了制造至少一个实施例的冷却装置,设计准直板和/或冷却装置包括设计的通风装置,使得准直板之间的空间至少部分地暴露于冷却空气流 以便冷却辐射探测器。 在至少一个附加实施例中进一步描述了用于冷却X射线探测器的相应方法。
    • 9. 发明申请
    • Control arrangement for a computed tomography apparatus and method for controlling a computed tomography apparatus
    • 用于计算机断层摄影装置的控制装置和用于控制计算机断层摄影装置的方法
    • US20060193428A1
    • 2006-08-31
    • US11361251
    • 2006-02-23
    • Bjorn Heismann
    • Bjorn Heismann
    • H05G1/60A61B6/00G01N23/00G21K1/12
    • A61B6/542A61B6/032
    • In a control device for a computed tomography apparatus and method for controlling a computer tomography apparatus, the control device acquires a number of temporally successive volume data sets of the same subject in order to detect a temporal variation of the measurement subject. During the acquisition of a further volume data set of the same measurement subject, using the x-ray radiation currently received by the receiver unit, the control device automatically establishes a correlation in real time between a stored, earlier volume data set of the same measurement subject and the volume data set to be directly acquired, and the control device controls the x-ray source such that the x-ray radiation used for the acquisition of the volume data set to be directly acquired exhibits an intensity and/or dose that is inversely dependent on the established correlation.
    • 在用于计算机断层摄影装置的控制装置和用于控制计算机断层摄影装置的方法中,控制装置获取同一被摄体的多个时间上连续的体数据集,以便检测测量对象的时间变化。 在采集同一测量对象的另外的体积数据集的同时,使用由接收器单元当前接收的x射线辐射,控制装置在相同测量的存储的较早的体积数据集之间实时自动建立相关性 主体和体积数据被设置为直接获取,并且控制装置控制x射线源,使得用于获取直接获取的体数据集的x射线辐射表现出强度和/或剂量, 反向依赖于建立的相关性。
    • 10. 发明申请
    • Combined transmission/emission tomography apparatus
    • 组合发射/发射断层摄影装置
    • US20060086905A1
    • 2006-04-27
    • US11253326
    • 2005-10-19
    • Sven FritzlerBjorn HeismannJorg Pfeiffer
    • Sven FritzlerBjorn HeismannJorg Pfeiffer
    • G01T1/164
    • G01T1/1615G01T1/2985
    • A combined transmission/emission tomography apparatus for generation of tomographic slice images of an examination subject (preferably of a patient), has a supporting structure composed of a stationary stator and a rotor that rotates in operation, with at least one radiation-emitting device and at least one radiation-detecting device mounted on the rotor. The at least one radiation-emitting device and the at least one radiation-detecting device are primary components, and the apparatus has at least one associated supply component for one or more of the primary components. In the rotor all primary components are arranged in one rotation plane and all supply components are arranged outside of the rotation plane.
    • 用于产生检查对象(优选患者)的断层图像切片图像的组合透射/发射断层摄影装置具有由至少一个辐射发射装置和/或至少一个辐射发射装置和在运行中旋转的固定定子和转子组成的支撑结构, 安装在转子上的至少一个放射线检测装置。 所述至少一个辐射发射装置和所述至少一个辐射检测装置是主要部件,并且所述装置具有用于一个或多个主要部件的至少一个相关联的供应部件。 在转子中,所有主要部件布置在一个旋转平面中,并且所有的供给部件布置在旋转平面的外侧。