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公开(公告)号：US08269177B2
公开(公告)日：2012-09-18
申请号：US12714529
申请日：2010-02-28
IPC分类号： G01T1/166
CPC分类号： G01T1/2985 , A61B6/037
摘要： A method and apparatus for producing a PET image of a tissue using a PET scanner that includes scintillation crystals and detectors. A first crystal group including a first subset of crystals is formed, and a second crystal group including a second subset of the crystals is formed. The crystals in the first crystal group are different from crystals in the second crystal group A first beam striking one or more crystals of the first crystal group is converted to a first electrical signal, while a second beam striking one or more crystals of the second crystal group is converted to a second electrical signal, wherein the second beam is scattered from the first beam. The second electrical signal is corrected using a correction factor derived from at least one of a first and second timing relationships to compensate for energy in the second signal scattered from the first signal. An image of the tissue is created using the corrected second electrical signal.
摘要翻译： 一种使用包括闪烁晶体和检测器的PET扫描仪来生产组织的PET图像的方法和装置。 形成包括晶体的第一子集的第一晶体组，并且形成包括晶体的第二子集的第二晶体组。 第一晶体组中的晶体与第二晶体组中的晶体不同。将第一晶体组中的一个或多个晶体的第一光束转换为第一电信号，而第二光束撞击第二晶体的一个或多个晶体 组被转换为第二电信号，其中第二光束从第一光束散射。 使用从第一和第二定时关系中的至少一个导出的校正因子校正第二电信号，以补偿从第一信号散射的第二信号中的能量。 使用校正的第二电信号创建组织的图像。
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公开(公告)号：US20110210255A1
公开(公告)日：2011-09-01
申请号：US12714529
申请日：2010-02-28
IPC分类号： G01T1/20
CPC分类号： G01T1/2985 , A61B6/037
摘要： A method for producing a PET image of a tissue using a PET scanner, the scanner comprising a plurality of scintillation crystals (70X/75X) and a plurality of detectors (71X/76X). The method comprises forming a first crystal group (160X) including a first subset of the plurality of crystals; forming a second crystal group (164X) including a second subset of the plurality of crystals, wherein crystals comprising the first crystal group (160X) are different from crystals comprising the second crystal group (164X); converting a first beam (120) striking one or more crystals of the first crystal group (70X/160X) to a first electrical signal (94); converting a second beam striking one or more crystals of the second crystal group (75X/164X) to a second electrical signal (98), wherein the second beam is scattered from the first beam; determining one or both of a first and a second timing relationship, wherein the first timing relationship (Δt2) is a time interval between a value of the first electrical signal (94) and a time reference (t1), and the second timing relationship (Δt3) is a time interval between a value of the second electrical signal (98) and the time reference (t1); correcting the second electrical signal (98) to produce a corrected second electrical signal using a correction factor derived from at least one of the first and the second timing relationships to compensate for energy in the second signal scattered from the first signal; and creating an image of the tissue (12) using the corrected second electrical signal.
摘要翻译： 一种使用PET扫描仪生产组织的PET图像的方法，所述扫描器包括多个闪烁晶体（70X / 75X）和多个检测器（71X / 76X）。 该方法包括形成包括多个晶体的第一子集的第一晶体组（160X） 形成包含多个晶体的第二子集的第二晶体组（164X），其中包含第一晶体组（160X）的晶体与包含第二晶体组（164X）的晶体不同; 将第一晶体组（70X / 160X）的一个或多个晶体的第一光束（120）转换成第一电信号（94）; 将第二晶体组（75X / 164X）的一个或多个晶体的第二光束转换成第二电信号（98），其中所述第二光束从所述第一光束散射; 确定第一和第二定时关系中的一个或两个，其中所述第一定时关系（＆Dgr; t2）是所述第一电信号（94）的值与时间基准（t1）之间的时间间隔和所述第二定时 关系（＆Dgr; t3）是第二电信号（98）的值与时间基准（t1）之间的时间间隔; 使用从第一和第二定时关系中的至少一个导出的校正因子校正第二电信号（98）以产生校正的第二电信号，以补偿从第一信号散射的第二信号中的能量; 以及使用校正的第二电信号创建组织（12）的图像。
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公开(公告)号：US20130334428A1
公开(公告)日：2013-12-19
申请号：US13526130
申请日：2012-06-18
申请人： Chang Lyong Kim , David Leo McDaniel , James Lindgren Malaney , William Todd Peterson , Gary V. McBroom
发明人： Chang Lyong Kim , David Leo McDaniel , James Lindgren Malaney , William Todd Peterson , Gary V. McBroom
CPC分类号： G01T1/1644 , G01T1/247 , G01T1/249
摘要： Methods and systems for signal communication in gamma ray detectors are provided. One gamma ray detector includes a scintillator block having a plurality of scintillator crystals and a plurality of light sensors coupled to the scintillator crystals and having a plurality of microcells. Each of the plurality of light sensors has a first set of signal traces connected to the microcells and a second set of signal traces connected along the first set of signal traces and together forming a signal path to a summing signal trace. Each of the plurality of light sensors also has a pin-out connected to the summing signal trace.
摘要翻译： 提供了用于伽马射线检测器中的信号通信的方法和系统。 一个伽马射线检测器包括具有多个闪烁体晶体的闪烁体块和耦合到闪烁体晶体并具有多个微单元的多个光传感器。 多个光传感器中的每一个具有连接到微小区的第一组信号迹线和沿着第一组信号迹线连接的第二组信号迹线，并且一起形成到求和信号迹线的信号路径。 多个光传感器中的每一个还具有连接到求和信号迹线的引脚输出。
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4.发明申请POSITRON EMISSION TOMOGRPAHY DETECTOR FOR DUAL-MODALITY IMAGING 审中-公开用于双模态成像的POSITRON发射TOMOGRPAHY检测器公开(公告)号：US20130284936A1
公开(公告)日：2013-10-31
申请号：US13459977
申请日：2012-04-30
申请人： Gary V. McBroom , Chang Lyong Kim , David Leo McDaniel , James Lindgren Malaney , William Todd Peterson
发明人： Gary V. McBroom , Chang Lyong Kim , David Leo McDaniel , James Lindgren Malaney , William Todd Peterson
IPC分类号： G01T1/164
CPC分类号： G01R33/481 , G01R33/34046 , G01R33/34076 , G01T1/1603
摘要： A Positron Emission Tomography (PET) detector assembly includes a cold plate having a first side and an opposite second side, the cold plate being fabricated from a thermally conductive and electrically non-conductive material, a plurality of PET detector units coupled to the first side of the cold plate, and a readout electronics section coupled to the second side of the cold plate. A radio frequency (RF) body coil assembly and a dual-modality imaging system are also described herein.
摘要翻译： 正电子发射断层摄影术（PET）检测器组件包括具有第一侧和相对的第二侧的冷板，该冷板由导热和非导电材料制成，多个PET检测器单元联接到第一侧 以及耦合到冷板的第二侧的读出电子部分。 本文还描述了射频（RF）体线圈组件和双模态成像系统。
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公开(公告)号：US08907290B2
公开(公告)日：2014-12-09
申请号：US13492439
申请日：2012-06-08
申请人： Chang Lyong Kim , David Leo McDaniel , James Lindgren Malaney , William Todd Peterson , Vi-Hoa Tran , Ashwin Ashok Wagadarikar
发明人： Chang Lyong Kim , David Leo McDaniel , James Lindgren Malaney , William Todd Peterson , Vi-Hoa Tran , Ashwin Ashok Wagadarikar
IPC分类号： G01T1/24
摘要： A method for gain calibration of a gamma ray detector includes measuring signals generated by one or more light sensors of a gamma ray detector, generating one or more derived curves using the measured signals as a function of bias voltage and identifying a transition point in the one or more derived curves. The method also includes determining a breakdown voltage of the one or more light sensors using the identified transition point and setting a bias of the one or more light sensors based on the determined breakdown voltage.
摘要翻译： 用于γ射线检测器的增益校准的方法包括测量由伽马射线检测器的一个或多个光传感器产生的信号，使用测量的信号作为偏置电压的函数产生一个或多个导出曲线，并且识别一个转换点 或更多的派生曲线。 该方法还包括使用所识别的转变点确定一个或多个光传感器的击穿电压，并且基于所确定的击穿电压来设置一个或多个光传感器的偏置。
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6.发明授权Methods and systems for determining timing recovery information in a positron emission tomography (PET) system 有权用于确定正电子发射断层摄影（PET）系统中的定时恢复信息的方法和系统公开(公告)号：US09140804B2
公开(公告)日：2015-09-22
申请号：US13436032
申请日：2012-03-30
申请人： Chang Lyong Kim
发明人： Chang Lyong Kim
CPC分类号： G01T1/1648 , A61B6/037 , G01T1/1644 , G01T1/20 , G01T1/202 , G01T1/2985
摘要： A method and system for determining timing recovery information in a positron emission tomography (PET) system. One method includes determining energy information from pairs of light sensors of detectors of the TOF PET system, determining timing information from the pairs of light sensors of the detectors of the TOF PET system and calculating timing recovery information using the determined energy and timing information.
摘要翻译： 一种用于确定正电子发射断层摄影（PET）系统中的定时恢复信息的方法和系统。 一种方法包括从TOF PET系统的检测器的光传感器对中确定能量信息，从TOF PET系统的检测器的光对中确定定时信息，并使用确定的能量和定时信息来计算定时恢复信息。
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7.发明申请METHODS AND SYSTEMS FOR DETERMINING TIMING RECOVERY INFORMATION IN A POSITRON EMISSION TOMOGRAPHY (PET) SYSTEM 有权用于确定POSITRON排放测量（PET）系统中的时间恢复信息的方法和系统公开(公告)号：US20130256536A1
公开(公告)日：2013-10-03
申请号：US13436032
申请日：2012-03-30
申请人： Chang Lyong Kim
发明人： Chang Lyong Kim
CPC分类号： G01T1/1648 , A61B6/037 , G01T1/1644 , G01T1/20 , G01T1/202 , G01T1/2985
摘要： A method and system for determining timing recovery information in a positron emission tomography (PET) system. One method includes determining energy information from pairs of light sensors of detectors of the TOF PET system, determining timing information from the pairs of light sensors of the detectors of the TOF PET system and calculating timing recovery information using the determined energy and timing information.
摘要翻译： 一种用于确定正电子发射断层摄影（PET）系统中的定时恢复信息的方法和系统。 一种方法包括从TOF PET系统的检测器的光传感器对中确定能量信息，从TOF PET系统的检测器的光对中确定定时信息，并使用所确定的能量和定时信息来计算定时恢复信息。
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8.发明申请公开(公告)号：US20080217541A1
公开(公告)日：2008-09-11
申请号：US11682946
申请日：2007-03-07
申请人： Chang Lyong Kim
发明人： Chang Lyong Kim
IPC分类号： G01T1/164
CPC分类号： G01T1/1644 , G01T1/1611
摘要： A medical imaging system is provided including a positron emission tomography (PET) imaging apparatus and a computed tomography (CT) imaging apparatus. The CT imaging apparatus includes a rotatable gantry. A radioactive source loader is attached to the rotatable gantry to rotate therewith. The radioactive source loader further includes a radioactive source to calibrate the PET imaging apparatus.
摘要翻译： 提供了包括正电子发射断层摄影（PET）成像装置和计算机断层摄影（CT）成像装置的医学成像系统。 CT成像装置包括可旋转机架。 放射源装载器连接到可旋转机架上以与其一起旋转。 放射源装载器还包括用于校准PET成像装置的放射源。
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公开(公告)号：US08937285B2
公开(公告)日：2015-01-20
申请号：US13526130
申请日：2012-06-18
申请人： Chang Lyong Kim , David Leo McDaniel , James Lindgren Malaney , William Todd Peterson , Gary V. McBroom
发明人： Chang Lyong Kim , David Leo McDaniel , James Lindgren Malaney , William Todd Peterson , Gary V. McBroom
IPC分类号： G01T1/20
CPC分类号： G01T1/1644 , G01T1/247 , G01T1/249
摘要： Methods and systems for signal communication in gamma ray detectors are provided. One gamma ray detector includes a scintillator block having a plurality of scintillator crystals and a plurality of light sensors coupled to the scintillator crystals and having a plurality of microcells. Each of the plurality of light sensors has a first set of signal traces connected to the microcells and a second set of signal traces connected along the first set of signal traces and together forming a signal path to a summing signal trace. Each of the plurality of light sensors also has a pin-out connected to the summing signal trace.
摘要翻译： 提供了用于伽马射线检测器中的信号通信的方法和系统。 一个伽马射线检测器包括具有多个闪烁体晶体的闪烁体块和耦合到闪烁体晶体并具有多个微单元的多个光传感器。 多个光传感器中的每一个具有连接到微小区的第一组信号迹线和沿着第一组信号迹线连接的第二组信号迹线，并且一起形成到求和信号迹线的信号路径。 多个光传感器中的每一个还具有连接到求和信号迹线的引脚输出。
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公开(公告)号：US20130327932A1
公开(公告)日：2013-12-12
申请号：US13492439
申请日：2012-06-08
申请人： Chang Lyong Kim , David Leo McDaniel , James Lindgren Malaney , William Todd Peterson , Vi-Hoa Tran , Ashwin Ashok Wagadarikar
发明人： Chang Lyong Kim , David Leo McDaniel , James Lindgren Malaney , William Todd Peterson , Vi-Hoa Tran , Ashwin Ashok Wagadarikar
摘要： Methods and systems for gain calibration of a gamma ray detector are provided. One method includes measuring signals generated by one or more light sensors of a gamma ray detector, generating one or more derived curves using the measured signals as a function of bias voltage and identifying a transition point in the one or more derived curves. The method also includes determining a breakdown voltage of the one or more light sensors using the identified transition point and setting a bias of the one or more light sensors based on the determined breakdown voltage.
摘要翻译： 提供了用于γ射线检测器的增益校准的方法和系统。 一种方法包括测量由伽马射线检测器的一个或多个光传感器产生的信号，使用测量的信号作为偏置电压的函数产生一个或多个导出曲线，并且识别所述一个或多个导出曲线中的转变点。 该方法还包括使用所识别的转变点确定一个或多个光传感器的击穿电压，并且基于所确定的击穿电压来设置一个或多个光传感器的偏置。
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