利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

34 条记录 (耗时 0.025 秒)

    HIGH RESOLUTION MEDICAL IMAGING DETECTOR
    5.
    发明申请
    HIGH RESOLUTION MEDICAL IMAGING DETECTOR 有权
    高分辨率医学成像检测器

    公开(公告)号：US20100176301A1

    公开(公告)日：2010-07-15

    申请号：US12063769

    申请日：2006-07-27

    申请人： Herfried Wieczorek ,  Andreas Goedicke ,  Thomas Frach

    发明人： Herfried Wieczorek ,  Andreas Goedicke ,  Thomas Frach

    IPC分类号： G01T1/164

    CPC分类号： G01T1/1642

    摘要： A detector arrangement providing imaging information at the edge of the scintillator is provided. The detector arrangement provides complete information and improved spatial resolution. SiPMs can be used in place of PMTs in order to provide the geometrical coverage of the scintillator and improved spatial resolution. With such detector arrangements, the spatial resolution can be under 2 mm. Furthermore, the overall thickness of the detector can be substantially reduced and depth of interaction resolution is also improved.

    摘要翻译： 提供了一种在闪烁体边缘处提供成像信息的检测器装置。 检测器布置提供完整的信息和改进的空间分辨率。 可以使用SiPM代替PMT，以提供闪烁体的几何覆盖和改善的空间分辨率。 利用这种检测器布置，空间分辨率可以在2mm以下。 此外，可以显着地减少检测器的总体厚度，并且还提高了相互作用分辨率的深度。

    Detector element for spatially resolved detection of gamma radiation
    6.
    发明申请
    Detector element for spatially resolved detection of gamma radiation 有权
    用于空间分辨检测γ辐射的检测元件

    公开(公告)号：US20060243913A1

    公开(公告)日：2006-11-02

    申请号：US10554342

    申请日：2004-04-13

    申请人： Michael Overdick ,  Augusto Nascetti ,  Herfried Wieczorek

    发明人： Michael Overdick ,  Augusto Nascetti ,  Herfried Wieczorek

    IPC分类号： G01T1/20

    CPC分类号： G01T1/2008 ,  G01T1/2018

    摘要： The invention relates to a detector element (1) for gamma radiation, which is particularly suitable for use in a PEF apparatus. The detector element (1) consists of two or more different conversion units (11, 12), which react to the absorption of a gamma quantum (y) with light emissions (λ1, λ2) of different spectral composition. A photodetector arrangement (30) may therefore discriminate between the sites of origin of the light emissions by means of their spectral characteristics.

    摘要翻译： 本发明涉及用于γ辐射的检测器元件（1），其特别适用于PEF装置。 检测器元件（1）由两个或更多个不同的转换单元（11,12）组成，它们与具有光发射的λ量子（y）的吸收相反应（λ1， 2）不同的光谱组成。 因此，光电检测器装置（30）可以通过它们的光谱特性来区分光发射的原点。

    X-ray examination apparatus including a matrix of sensors and device measuring exposure of groups of sensors during execution of an X-ray exposure
    7.
    发明授权
    X-ray examination apparatus including a matrix of sensors and device measuring exposure of groups of sensors during execution of an X-ray exposure 失效
    X射线检查装置，包括传感器矩阵和测量X射线曝光执行期间传感器组的接触装置

    公开(公告)号：US5194736A

    公开(公告)日：1993-03-16

    申请号：US789221

    申请日：1991-11-07

    申请人： Hendrik J. Meulenbrugge ,  Ulrich Schiebel ,  Herfried Wieczorek

    发明人： Hendrik J. Meulenbrugge ,  Ulrich Schiebel ,  Herfried Wieczorek

    IPC分类号： H05G1/44 ,  H05G1/64

    CPC分类号： H05G1/64 ,  H05G1/44 ,  H04N5/32

    摘要： An X-ray examination apparatus includes a sensor matrix (41) with sensors (1) which are arranged in rows and columns and each of which comprises an X-ray sensitive photosensor element (11) and a storage capacitance (12) which is connected parallel thereto. First electrodes of the sensors are connected to a counter-electrode (2) which receives a direct voltage, second electrodes being connected to an electric switch (13) provided for each sensor. For exposure measurement the currents flowing through the counter-electrode (electrodes) (2) and/or the electric switches (13) after the brief closing of the electric switches (13) and before the reading of the charges are used to measure and/or correct the exposure of groups of the sensors during the execution of an X-ray exposure.

    摘要翻译： X射线检查装置包括具有传感器（1）的传感器矩阵（41），传感器（1）以行和列排列，每个传感器矩阵包括连接有X射线敏感光电元件（11）和存储电容（12） 与其平行。 传感器的第一电极连接到接收直接电压的对电极（2），第二电极连接到为每个传感器提供的电开关（13）。 对于曝光测量，在电开关（13）短暂关闭之后和在读取电荷之前，流过对电极（电极）（2）和/或电开关（13）的电流被用于测量和/ 或者在执行X射线曝光期间校正传感器组的曝光。

    Image-based biopsy guidance method
    8.
    发明授权
    Image-based biopsy guidance method 有权
    基于图像的活检指导方法

    公开(公告)号：US09014780B2

    公开(公告)日：2015-04-21

    申请号：US12942269

    申请日：2010-11-09

    申请人： Herfried Wieczorek ,  Matthias Bertram

    发明人： Herfried Wieczorek ,  Matthias Bertram

    IPC分类号： A61B5/05 ,  A61B6/03 ,  A61B6/00 ,  A61B19/00 ,  A61B10/02 ,  G01R33/48

    CPC分类号： A61B6/032 ,  A61B6/037 ,  A61B6/4233 ,  A61B6/4417 ,  A61B6/487 ,  A61B6/5235 ,  A61B6/5264 ,  A61B10/0233 ,  A61B34/10 ,  A61B2034/107 ,  A61B2034/2065 ,  A61B2090/364 ,  G01R33/481

    摘要： When performing image-guided biopsy of an anatomical structure in a patient, a target anatomical patient region containing biopsy target is imaged using both SPECT and XCT concurrently. 3D SPECT and XCT image data is fused to generate a fused 3D reference image that is overlaid on 2D patient image(s) generated during the biopsy procedure to generate an overlay image. The overlay image also includes a planned path or trajectory for a biopsy instrument. The 2D patient images are generated using SPECT and/or XCT, and are updated periodically to show biopsy instrument position and progress.

    摘要翻译： 当在患者中进行解剖结构的图像引导活组织检查时，使用SPECT和XCT同时成像含有活组织检查靶的目标解剖学患者区域。 融合3D SPECT和XCT图像数据以产生融合的3D参考图像，其覆盖在活检过程中产生的2D患者图像上以产生覆盖图像。 覆盖图像还包括活检仪器的计划路径或轨迹。 使用SPECT和/或XCT生成2D患者图像，并且周期性地更新以显示活检仪器的位置和进展。

    PIXELATED SCINTILLATOR ARRAY
    9.
    发明申请
    PIXELATED SCINTILLATOR ARRAY 有权
    像素化扫描仪阵列

    公开(公告)号：US20100294940A1

    公开(公告)日：2010-11-25

    申请号：US12777285

    申请日：2010-05-11

    申请人： Herfried Wieczorek

    发明人： Herfried Wieczorek

    IPC分类号： G01T1/164 ,  G01T1/202 ,  H01L31/18

    CPC分类号： H01L27/14663 ,  A61B6/037 ,  G01T1/2018 ,  G01T1/2985

    摘要： A radiation detector module for use in nuclear medical imagers employing radiation transmission or radiopharmaceuticals includes a rigid, optically opaque grid defined around a plurality of scintillator crystals. The grid defines a plurality of cells in which each scintillator crystal is completely disposed within in such a manner that an air layer exists between the scintillator crystal and the walls of the grid. A plurality of photoelectric detectors, each of which is associated with a corresponding scintillator crystal, are optically coupled to corresponding scintillator crystals by an optical coupling layer disposed within the cell.

    摘要翻译： 用于使用辐射透射或放射性药物的核医学成像器中的辐射检测器模块包括围绕多个闪烁体晶体限定的刚性的光学不透明网格。 栅格限定多个单元，其中每个闪烁体晶体完全设置在闪烁体晶体和栅格壁之间存在空气层的方式。 每个与对应的闪烁体晶体相关联的多个光电检测器通过设置在单元内的光耦合层光耦合到相应的闪烁体晶体。

    Shielding for an x-ray detector
    10.
    发明申请
    Shielding for an x-ray detector 有权
    屏蔽X射线探测器

    公开(公告)号：US20070057192A1

    公开(公告)日：2007-03-15

    申请号：US10596152

    申请日：2004-12-02

    申请人： Gereon Vogtmeier ,  Roger Steadman ,  Klaus Engel ,  Herfried Wieczorek ,  Wolfgang Eckenbach

    发明人： Gereon Vogtmeier ,  Roger Steadman ,  Klaus Engel ,  Herfried Wieczorek ,  Wolfgang Eckenbach

    IPC分类号： G01T1/20

    CPC分类号： G01T1/2018

    摘要： The invention relates to an X-ray detector with detector elements (1) arranged in a layer. The detector elements (1) contain a scintillator element (2) for the conversion of X-rays (X) into photons (v), a photodiode (5) for detection of the photons (v), and a processing circuit (4) for the processing of electric signals generated by the photodiode (5). In order to protect the electronics (4) from X-rays a shielding (3) of variable effective thickness (d1, d2) is disposed in front of the electronics (4). This shielding (3) can in particular be L-shaped. By reduction of the effective thickness of the shielding (3) to a necessary minimum the volume of the scintillator unit (2) can be maximized.

    摘要翻译： 本发明涉及一种具有布置在一层中的检测器元件（1）的X射线检测器。 检测器元件（1）包括用于将X射线（X）转换成光子（v）的闪烁体元件（2），用于检测光子（v）的光电二极管（5）和处理电路（4） 用于处理由光电二极管（5）产生的电信号。 为了保护电子器件（4）免受X射线影响，可变有效厚度（d 1，d 2）的屏蔽层（3）设置在电子器件（4）的前面。 这种屏蔽（3）可以特别是L形。 通过将屏蔽（3）的有效厚度减小到所需的最小值，可以使闪烁体单元（2）的体积最大化。