REALTIME LINE OF RESPONSE POSITION CONFIDENCE MEASUREMENT
    1.
    发明申请
    REALTIME LINE OF RESPONSE POSITION CONFIDENCE MEASUREMENT 失效
    响应位置实时测量线

    公开(公告)号:US20110010486A1

    公开(公告)日:2011-01-13

    申请号:US12499524

    申请日:2009-07-08

    IPC分类号: G06F12/00

    CPC分类号: G01T1/1647

    摘要: A PET event position calculation method using a combination angular and radial event map wherein identification of the radial distance of the event from the centroid of the scintillation crystal with which the event is associated as well as angular information is performed. The radial distance can be converted to a statistical confidence interval, which information can be used in downstream processing. More sophisticated reconstruction algorithms can use the confidence interval information selectively, to generate higher fidelity images with higher confidence information, and to improve statistics in dynamic imaging with lower confidence information.

    摘要翻译: 使用组合角度和径向事件图的PET事件位置计算方法,其中执行事件与事件相关联的闪烁晶体的质心的事件的径向距离以及角度信息。 可将径向距离转换为统计置信区间,该信息可用于下游处理。 更复杂的重建算法可以选择性地使用置信区间信息,以产生具有较高置信度信息的更高保真度图像,并且利用较低信度信息改进动态成像中的统计。

    Realtime line of response position confidence measurement
    2.
    发明授权
    Realtime line of response position confidence measurement 失效
    实时行响应位置置信度测量

    公开(公告)号:US07579598B2

    公开(公告)日:2009-08-25

    申请号:US11759163

    申请日:2007-06-06

    IPC分类号: G01T1/164

    摘要: A PET event position calculation method using a combination angular and radial event map wherein identification of the radial distance of the event from the centroid of the scintillation crystal with which the event is associated as well as angular information is performed. The radial distance can be converted to a statistical confidence interval, which information can be used in downstream processing. More sophisticated reconstruction algorithms can use the confidence interval information selectively, to generate higher fidelity images with higher confidence information, and to improve statistics in dynamic imaging with lower confidence information.

    摘要翻译: 使用组合角度和径向事件图的PET事件位置计算方法,其中执行事件与事件相关联的闪烁晶体的质心的事件的径向距离以及角度信息。 可将径向距离转换为统计置信区间,该信息可用于下游处理。 更复杂的重建算法可以选择性地使用置信区间信息,以产生具有较高置信度信息的较高保真度图像,并且利用较低置信度信息改进动态成像中的统计。

    Realtime line of response position confidence measurement
    3.
    发明授权
    Realtime line of response position confidence measurement 失效
    实时行响应位置置信度测量

    公开(公告)号:US08148694B2

    公开(公告)日:2012-04-03

    申请号:US12499524

    申请日:2009-07-08

    IPC分类号: G01T1/164

    CPC分类号: G01T1/1647

    摘要: A PET event position calculation method using a combination angular and radial event map wherein identification of the radial distance of the event from the centroid of the scintillation crystal with which the event is associated as well as angular information is performed. The radial distance can be converted to a statistical confidence interval, which information can be used in downstream processing. More sophisticated reconstruction algorithms can use the confidence interval information selectively, to generate higher fidelity images with higher confidence information, and to improve statistics in dynamic imaging with lower confidence information.

    摘要翻译: 使用组合角度和径向事件图的PET事件位置计算方法,其中执行事件与事件相关联的闪烁晶体的质心的事件的径向距离以及角度信息。 可将径向距离转换为统计置信区间,该信息可用于下游处理。 更复杂的重建算法可以选择性地使用置信区间信息,以产生具有较高置信度信息的更高保真度图像,并且利用较低信度信息改进动态成像中的统计。

    Systems and Methods for Calibrating Time Alignment For A Positron Emission Tomography (PET) System
    4.
    发明申请
    Systems and Methods for Calibrating Time Alignment For A Positron Emission Tomography (PET) System 有权
    用于校正正电子发射断层扫描(PET)系统的时间对准的系统和方法

    公开(公告)号:US20110127413A1

    公开(公告)日:2011-06-02

    申请号:US12628259

    申请日:2009-12-01

    IPC分类号: G12B13/00

    CPC分类号: G12B13/00 G01T1/2985

    摘要: A representative positron emission tomography (PET) calibration system includes a PET scanner having a ring detector, a phantom that is placed at approximately the center of the ring detector, and a time alignment calibration manager that is coupled to the PET scanner. The time alignment calibration manager detects coincidence events from the phantom, calculates position of time of flight events from the ring detector based on the detected coincidence events, and calculates time offsets for the ring detector using a mean value calculation based on the calculated position of the time of flight events.

    摘要翻译: 代表性的正电子发射断层摄影(PET)校准系统包括具有环检测器的PET扫描器,放置在环检测器的大约中心处的体模,以及耦合到PET扫描器的时间对准校准管理器。 时间校准管理器检测来自幻影的重合事件,基于检测到的重合事件来计算来自环形探测器的飞行时间的位置,并使用基于计算出的位置的计算的平均值计算环形探测器的时间偏移量 飞行时间事件

    Shifted transmission mock for nuclear medical imaging
    5.
    发明授权
    Shifted transmission mock for nuclear medical imaging 失效
    用于核医学成像的变速传动模拟

    公开(公告)号:US07324624B2

    公开(公告)日:2008-01-29

    申请号:US11251232

    申请日:2005-10-14

    IPC分类号: G01T1/29

    CPC分类号: G01T1/1615

    摘要: Emission contamination data are collected in a shifted mock scan simultaneous with the collection of transmission data during a transmission scan of a patient with a collimated gamma point source, the transmission data are corrected with the emission contamination data, and the corrected transmission data are used for attenuation correction of emission data for reconstruction of an emission image of the patient. In a preferred implementation, when the point source is at a particular axial location and illuminates an axial beamwidth of “Fz” over the gamma detector, emission contamination data are collected from the gamma detector over an axial separated region “Fz′” having about the same axial extent but axially displaced by about half of the axial field of view (FOV).

    摘要翻译: 在具有准直伽马点源的患者的发射扫描期间,与移动模拟扫描同时收集发射污染数据,传输数据用排放污染数据进行校正,校正的传输数据用于 用于重建患者的发射图像的发射数据的衰减校正。 在优选实施方案中,当点源处于特定的轴向位置并且照亮伽马检测器上的“Fz”的轴向波束宽度时,从伽马检测器沿着具有大约的轴的分离区域“Fz”收集发射污染数据 相同的轴向范围,但轴向位移约轴向视场(FOV)的一半。

    Systems and methods for calibrating time alignment for a positron emission tomography (PET) system
    7.
    发明授权
    Systems and methods for calibrating time alignment for a positron emission tomography (PET) system 有权
    用于校正正电子发射断层摄影(PET)系统的时间对准的系统和方法

    公开(公告)号:US08089043B2

    公开(公告)日:2012-01-03

    申请号:US12628259

    申请日:2009-12-01

    IPC分类号: G01D18/00

    CPC分类号: G12B13/00 G01T1/2985

    摘要: A representative positron emission tomography (PET) calibration system includes a PET scanner having a ring detector, a phantom that is placed at approximately the center of the ring detector, and a time alignment calibration manager that is coupled to the PET scanner. The time alignment calibration manager detects coincidence events from the phantom, calculates position of time of flight events from the ring detector based on the detected coincidence events, and calculates time offsets for the ring detector using a mean value calculation based on the calculated position of the time of flight events.

    摘要翻译: 代表性的正电子发射断层摄影(PET)校准系统包括具有环检测器的PET扫描器,放置在环检测器的大约中心处的体模,以及耦合到PET扫描器的时间对准校准管理器。 时间校准管理器检测来自幻影的重合事件,基于检测到的重合事件来计算来自环形探测器的飞行时间的位置,并使用基于计算出的位置的计算的平均值计算环形探测器的时间偏移量 飞行时间事件