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12 条记录 (耗时 0.015 秒)

    Pet/Mr Scanner with Time-of-Flight Capability
    11.
    发明申请
    Pet/Mr Scanner with Time-of-Flight Capability 有权
    宠物/扫描仪具有飞行时间能力

    公开(公告)号：US20080284428A1

    公开(公告)日：2008-11-20

    申请号：US11911831

    申请日：2006-03-28

    申请人： Klaus Fiedler ,  Jacobus A. J. M. Deckers ,  Thomas Frach

    发明人： Klaus Fiedler ,  Jacobus A. J. M. Deckers ,  Thomas Frach

    IPC分类号： G01V3/00 ,  G01T1/164

    CPC分类号： G01R33/481 ,  A61B6/037 ,  A61B6/4417 ,  G01R33/28 ,  G01R33/5673 ,  G06T11/00

    摘要： In a combined scanner, a main magnet (20) and magnetic field gradient coils (28) housed in or on a scanner housing (12, 18) acquires spatially encoded magnetic resonances in an imaging region (14). Solid state radiation detectors (50, 50′, 50″) disposed in or on the scanner housing are arranged to detect gamma rays emitted from the imaging region. Time-of-flight positron emission tomography (TOF-PET) processing (52, 54, 58, 60, 62) determines localized lines of response based on (i) locations of substantially simultaneous gamma ray detections output by the radiation detectors and (ii) a time interval between said substantially simultaneous gamma ray detections. TOF-PET reconstruction processing (64) reconstructs the localized lines of response to produce a TOF-PET image. Magnetic resonance imaging (MRI) reconstruction processing (44) reconstructs the acquired magnetic resonances to produce an MRI image.

    摘要翻译： 在组合扫描器中，容纳在扫描仪外壳（12,18）中或扫描仪外壳（12,18）上的主磁体（20）和磁场梯度线圈（28）在成像区域（14）中获取空间编码的磁共振。 布置在扫描仪外壳中或扫描仪外壳上的固体辐射检测器（50,50'，50“）布置成用于检测从成像区域发射的伽马射线。 飞行时间正电子发射断层扫描（TOF-PET）处理（52,54,58,60,62）基于（i）由辐射探测器输出的基本上同时的伽马射线检测的位置确定局部的响应线， ）所述基本上同时的伽马射线检测之间的时间间隔。 TOF-PET重建处理（64）重建局部应答线以产生TOF-PET图像。 磁共振成像（MRI）重建处理（44）重建获取的磁共振以产生MRI图像。

    Method and apparatus for triggering image acquisition in a c-arm system by a rotary encoder
    12.
    发明申请
    Method and apparatus for triggering image acquisition in a c-arm system by a rotary encoder 失效
    用于通过旋转编码器在c臂系统中触发图像采集的方法和装置

    公开(公告)号：US20070015986A1

    公开(公告)日：2007-01-18

    申请号：US10555575

    申请日：2004-04-26

    申请人： Klaus Fiedler ,  Jens Wiegert

    发明人： Klaus Fiedler ,  Jens Wiegert

    IPC分类号： A61B5/05

    CPC分类号： A61B6/4441 ,  A61B6/547

    摘要： Method of generating an image of an object by means of an imaging system which has a radiation source that rotates relative to the object about an axis of rotation within a defined rotation angle range, said radiation source projecting radiation onto a radiation detector in order to record projection data, wherein at predefinable relative rotation angle positions of the radiation source a signal which is used to trigger recording of the projection data is generated, and also apparatus for carrying out this method.

    摘要翻译： 通过成像系统生成物体的图像的方法，所述成像系统具有围绕限定的旋转角度范围内的旋转轴线相对于物体旋转的辐射源，所述辐射源将辐射投射到辐射检测器上以便记录 投影数据，其中在辐射源的预定的相对旋转角度位置处产生用于触发投影数据的记录的信号，以及用于执行该方法的装置。