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公开(公告)号：US20110220783A1
公开(公告)日：2011-09-15
申请号：US12720451
申请日：2010-03-09
CPC分类号： G01T1/1647 , G01T7/005
摘要： Methods and systems for calibrating a nuclear medicine imaging are provided. One method includes acquiring spatially determined non-uniform radiation flux information from a calibration scan of a calibration source using a gamma camera having an attached non-parallel-hole collimator. The method further includes determining a measured non-uniform count density profile from the acquired non-uniform radiation flux information. The method also includes creating a gamma camera uniformity correction map derived from (i) the measured non-uniform count density profile and (ii) a modeled or calculated non-uniform count density profile for calibrating the NM imaging system.
摘要翻译： 提供了用于校准核医学成像的方法和系统。 一种方法包括使用具有附接的非平行孔准直器的伽马照相机从校准源的校准扫描获取空间上确定的不均匀辐射通量信息。 该方法还包括从所获取的非均匀辐射通量信息确定测量的不均匀计数密度分布。 该方法还包括创建从（i）测量的非均匀计数密度分布和（ii）用于校准NM成像系统的建模或计算的不均匀计数密度分布导出的伽马相机均匀性校正图。
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公开(公告)号：US08415632B2
公开(公告)日：2013-04-09
申请号：US12720451
申请日：2010-03-09
IPC分类号： G01T1/161
CPC分类号： G01T1/1647 , G01T7/005
摘要： Methods and systems for calibrating a nuclear medicine imaging system are provided. One method includes acquiring spatially determined non-uniform radiation flux information from a calibration scan of a calibration source using a gamma camera having an attached non-parallel-hole collimator. The method further includes determining a measured non-uniform count density profile from the acquired non-uniform radiation flux information. The method also includes creating a gamma camera uniformity correction map derived from (i) the measured non-uniform count density profile and (ii) a modeled or calculated non-uniform count density profile for calibrating the NM imaging system.
摘要翻译： 提供了用于校准核医学成像系统的方法和系统。 一种方法包括使用具有附接的非平行孔准直器的伽马照相机从校准源的校准扫描获取空间上确定的不均匀辐射通量信息。 该方法还包括从所获取的非均匀辐射通量信息确定测量的不均匀计数密度分布。 该方法还包括创建从（i）测量的非均匀计数密度分布和（ii）用于校准NM成像系统的建模或计算的不均匀计数密度分布导出的伽马相机均匀性校正图。
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3.发明授权Systems and methods for providing a shared charge in pixelated image detectors 有权在像素化图像检测器中提供共享电荷的系统和方法公开(公告)号：US08405038B2
公开(公告)日：2013-03-26
申请号：US12649987
申请日：2009-12-30
IPC分类号： G01T1/24
CPC分类号： G01T1/241 , G01T1/249 , G01T1/2928
摘要： Systems and methods for providing a shared charge in pixelated image detectors are provided. One method includes providing a plurality of pixels for a pixelated solid state photon detector in a configuration such that a charge distribution is detected by at least two pixels and obtaining charge information from the at least two pixels. The method further includes determining a position of an interaction of the charge distribution with the plurality of pixels based on the obtained charge information.
摘要翻译： 提供了用于在像素化图像检测器中提供共享电荷的系统和方法。 一种方法包括在配置中为像素化固态光子检测器提供多个像素，使得通过至少两个像素检测电荷分布并从至少两个像素获得电荷信息。 该方法还包括基于获得的电荷信息来确定电荷分布与多个像素的相互作用的位置。
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公开(公告)号：US20110155899A1
公开(公告)日：2011-06-30
申请号：US12649840
申请日：2009-12-30
申请人： Uzi Dror , Alexander Fishler , Jean-Paul Bouhnik , Ira Blevis
发明人： Uzi Dror , Alexander Fishler , Jean-Paul Bouhnik , Ira Blevis
摘要： Method and apparatus for extending a count rate capability of a detector array. The method includes receiving photons at a detector array, counting the photons that are above a first energy threshold using a first counter, counting the photons that are above a different second energy threshold using a second counter, and calculating a pile-up estimate using the photon counts from the first and second counters.
摘要翻译： 用于扩展检测器阵列的计数速率能力的方法和装置。 该方法包括在检测器阵列处接收光子，使用第一计数器对高于第一能量阈值的光子进行计数，使用第二计数器计数高于不同的第二能量阈值的光子，以及使用第二计数器计算堆积估计值 来自第一和第二计数器的光子计数。
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5.发明申请SYSTEMS AND METHODS FOR PROVIDING A SHARED CHARGE IN PIXELATED IMAGE DETECTORS 有权用于在像素图像检测器中提供共享电荷的系统和方法公开(公告)号：US20110155918A1
公开(公告)日：2011-06-30
申请号：US12649987
申请日：2009-12-30
IPC分类号： G01T1/24
CPC分类号： G01T1/241 , G01T1/249 , G01T1/2928
摘要： Systems and methods for providing a shared charge in pixelated image detectors are provided. One method includes providing a plurality of pixels for a pixelated solid state photon detector in a configuration such that a charge distribution is detected by at least two pixels and obtaining charge information from the at least two pixels. The method further includes determining a position of an interaction of the charge distribution with the plurality of pixels based on the obtained charge information.
摘要翻译： 提供了用于在像素化图像检测器中提供共享电荷的系统和方法。 一种方法包括在配置中为像素化固态光子检测器提供多个像素，使得通过至少两个像素检测电荷分布并从至少两个像素获得电荷信息。 该方法还包括基于获得的电荷信息来确定电荷分布与多个像素的相互作用的位置。
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6.发明申请公开(公告)号：US20070029496A1
公开(公告)日：2007-02-08
申请号：US11498589
申请日：2006-08-03
申请人： Jean-Paul Bouhnik , Alexander Fishler , Hernan Altman , Uzi Dror , Ira Blevis
发明人： Jean-Paul Bouhnik , Alexander Fishler , Hernan Altman , Uzi Dror , Ira Blevis
IPC分类号： G01T1/24
摘要： A method and apparatus for reducing polarization within an imaging device are provided and include a method of controlling an image detecting device. The method includes applying heat to the image detecting device having at least one ohmic contact and controlling the applied heat to adjust a temperature level of the image detecting device.
摘要翻译： 提供了一种用于降低成像装置内的偏振的方法和装置，并且包括控制图像检测装置的方法。 该方法包括对具有至少一个欧姆接触的图像检测装置施加热量，并控制所施加的热量以调节图像检测装置的温度水平。
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公开(公告)号：US09000385B2
公开(公告)日：2015-04-07
申请号：US12649840
申请日：2009-12-30
申请人： Uzi Dror , Alexander Fishler , Jean-Paul Bouhnik , Ira Blevis
发明人： Uzi Dror , Alexander Fishler , Jean-Paul Bouhnik , Ira Blevis
摘要： Method and apparatus for extending a count rate capability of a detector array. The method includes receiving photons at a detector array, counting the photons that are above a first energy threshold using a first counter, counting the photons that are above a different second energy threshold using a second counter, and calculating a pile-up estimate using the photon counts from the first and second counters.
摘要翻译： 用于扩展检测器阵列的计数速率能力的方法和装置。 该方法包括在检测器阵列处接收光子，使用第一计数器对高于第一能量阈值的光子进行计数，使用第二计数器计数高于不同的第二能量阈值的光子，以及使用第二计数器计算堆积估计值 来自第一和第二计数器的光子计数。
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8.发明授权公开(公告)号：US07514692B2
公开(公告)日：2009-04-07
申请号：US11498589
申请日：2006-08-03
IPC分类号： G01T1/24
摘要： A method and apparatus for reducing polarization within an imaging device are provided and include a method of controlling an image detecting device. The method includes applying heat to the image detecting device having at least one ohmic contact and controlling the applied heat to adjust a temperature level of the image detecting device.
摘要翻译： 提供了一种用于降低成像装置内的偏振的方法和装置，并且包括控制图像检测装置的方法。 该方法包括对具有至少一个欧姆接触的图像检测装置施加热量，并控制所施加的热量以调节图像检测装置的温度水平。
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公开(公告)号：US08957384B2
公开(公告)日：2015-02-17
申请号：US13019590
申请日：2011-02-02
申请人： Jean-Paul Bouhnik , Yaron Hefetz
发明人： Jean-Paul Bouhnik , Yaron Hefetz
CPC分类号： G01T1/1644 , A61B6/037 , A61B6/4258 , G01T7/005
摘要： A gamma ray detector having a scintillator with segments allows for a linearity calibration of the gamma ray detector without the use of a linearity phantom. The segments in the scintillator are configured to channel output radiation received by the gamma ray detector to loci identifiable in image data generated by photomultiplier tubes. The non-linearity in the detector system may be characterized, and a correction map may be generated, based upon the identifiable loci.
摘要翻译： 具有片段的闪烁体的伽马射线检测器允许在不使用线性幻影的情况下对伽马射线检测器进行线性校准。 闪烁器中的段被配置为将由伽马射线检测器接收的输出辐射传送到由光电倍增管产生的图像数据中可识别的位点。 可以对检测器系统中的非线性进行表征，并且可以基于可识别的位点产生校正图。
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10.发明授权公开(公告)号：US08178848B2
公开(公告)日：2012-05-15
申请号：US12643761
申请日：2009-12-21
IPC分类号： H01L27/146
CPC分类号： G01T1/1647 , G01T1/249
摘要： Systems and methods for filtering noise in pixelated photon counting image detectors are provided. One method includes obtaining image information including event count information for a pixelated solid-state photon counting radiation detector and obtaining a count-rate threshold. The method further includes filtering the event count information based on the count-rate threshold.
摘要翻译： 提供了在像素化光子计数图像检测器中滤波噪声的系统和方法。 一种方法包括获得包括像素化固态光子计数辐射检测器的事件计数信息的图像信息并获得计数率阈值。 该方法还包括基于计数速率阈值过滤事件计数信息。
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