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1. 发明授权

US06627893B1 Focused rotating slat-hole for gamma cameras 失效
标题翻译：用于伽马相机的聚焦旋转板条孔
公开(公告)号：US06627893B1
公开(公告)日：2003-09-30
申请号：US09808935
申请日：2001-03-15
申请人： Gengsheng Lawrence Zeng , Daniel Gagnon
发明人： Gengsheng Lawrence Zeng , Daniel Gagnon
IPC分类号： G01T1166
CPC分类号： G01T1/1648 , A61B6/037 , G01T1/1644
摘要： &ggr;-ray emissions (14) are detected by a rotating, one-dimensional detector array (18). Slats of a convergent or divergent collimator (16) are mounted between detector elements. The slats are canted by an angle &agr; from focusing on a focal spot (40) on a perpendicular bisector to the detector array. As a detector head (30) revolves around a longitudinal axis (36) of the subject, the head is canted (FIG. 5) to generate angularly offset data sets. Data sets with the detector array rotated to 180° opposite orientations are processed (62) to generate a first derivative data set. Parallel lines or planes (64) of the canted data sets are processed (68) to generate a second derivative data set which is backprojected (70) in accordance with the Radon transform into a three-dimensional image representation.
摘要翻译：伽马射线辐射（14）由旋转的一维检测器阵列（18）检测。收敛或发散准直器（16）的板条安装在检测器元件之间。板条以聚焦在垂直平分线上的焦点（40）上的角度α倾斜到检测器阵列。当检测器头（30）围绕对象的纵向轴线（36）旋转时，头部被倾斜（图5）以产生角度偏移数据集。将检测器阵列旋转到相对方向180°的数据集被处理（62）以产生一阶导数数据集。处理倾斜数据集合的平行线或平面（64）（68）以产生根据Radon变换反向投影（70）到三维图像表示中的二阶导数数据集。

2. 发明授权

US06593576B2 Variable angular sampling rate for rotating slat-hole detectors of gamma cameras 失效
标题翻译：用于伽马相机的旋转板孔探测器的可变角采样率
公开(公告)号：US06593576B2
公开(公告)日：2003-07-15
申请号：US09809467
申请日：2001-03-15
申请人： Gengsheng Lawrence Zeng , Daniel Gagnon
发明人： Gengsheng Lawrence Zeng , Daniel Gagnon
IPC分类号： G01T1166
CPC分类号： G01T1/1644 , A61B6/037
摘要： A subject (10) is disposed adjacent a linear detector array (18) of a nuclear camera. The subject (10) is injected with a radioactive isotope (14) and y-ray emissions indicative of nuclear decay are detected at the detector array (18) as the detector array rotates about an axis of rotation to collect data over a circular field of view. Detectors farther from the axis rotation are sampled at a higher sampling rate such that the are sampled after a generally constant arc of rotation to correct for angular aliasing. The detector array (18) rotates about the axis of rotation in a 1/sin &THgr; pattern with angular offset of the detector array from a longitudinal axis of the subject. This corrects for otherwise uneven sampling. A reconstruction processor (84) reconstructs the identifications of the y-ray receiving detectors, or other indicators of event detection location, and the digital peak values to generate a spherical image representation.
摘要翻译：被摄体（10）设置在核相机的线性检测器阵列（18）附近。被检体（10）注入放射性同位素（14），并且当检测器阵列围绕旋转轴旋转时，在检测器阵列（18）处检测到表示核衰变的y射线发射，以在圆周的圆周上收集数据视图。以更高的采样速率对离轴旋转更远的探测器进行采样，以便在大体上恒定的旋转弧线之后对其进行采样，以校正角度混叠。检测器阵列（18）以1 / sin THETA图案的旋转轴线旋转，其中检测器阵列的角度偏移与被检体的纵轴成角度偏移。这取决于不均匀采样。重建处理器（84）重建y射线接收检测器或事件检测位置的其他指示符的标识，以及数字峰值以产生球形图像表示。

3. 发明授权

US09207333B2 Geometry for PET imaging 有权
标题翻译： PET成像几何
公开(公告)号：US09207333B2
公开(公告)日：2015-12-08
申请号：US13091761
申请日：2011-04-21
申请人： Daniel Gagnon
发明人： Daniel Gagnon
IPC分类号： G01T1/164 , G01T1/29 , A61B6/03
CPC分类号： G01T1/2985 , A61B6/037
摘要： A positron emission tomography (PET) scanner, including a first detector portion arranged circumferentially around a patient pallet, the first detector portion having a predetermined axial extent and transaxially subtending more than 180 degrees, but less than 360 degrees with respect to a central axis of the scanner defined by the first detector portion; and a second detector portion arranged separately from and opposing the first detector section, the second detector portion having a radius of curvature smaller than a radius of curvature of the first detector portion, wherein the second detector portion transaxially subtends less than 180 degrees with respect to the central axis of the scanner.
摘要翻译：正电子发射断层摄影（PET）扫描仪，包括围绕患者托盘周向布置的第一检测器部分，第一检测器部分具有预定的轴向范围，并且相对于中心轴线的轴向轴向对角超过180度但小于360度所述扫描仪由所述第一检测器部分限定; 以及第二检测器部分，其与第一检测器部分分开设置并相对于第二检测器部分，第二检测器部分具有小于第一检测器部分的曲率半径的曲率半径，其中第二检测器部分相对于扫描仪的中心轴。

4. 发明授权

US09194960B2 Pet detector scintillation light guiding system having fiber-optics plates 有权
标题翻译：宠物探测器闪烁光导系统具有光纤板
公开(公告)号：US09194960B2
公开(公告)日：2015-11-24
申请号：US13545614
申请日：2012-07-10
申请人： Daniel Gagnon , Kent Burr
发明人： Daniel Gagnon , Kent Burr
IPC分类号： G01T1/20 , G02B6/06 , G02B6/08 , G01T1/164
CPC分类号： G01T1/1644 , G01T1/2006 , G01T1/2018 , G02B6/06 , G02B6/08
摘要： A positron emission tomography scanner system that includes detector modules arranged adjacent to one another to form a cylindrical detector ring. Each of the detector modules includes an array of scintillation crystal elements, a plurality of photosensors arranged to cover the array of crystal elements and configured to receive light emitted from the array of crystal elements, and a fiber optics plate arranged between the array of scintillation crystal elements and the plurality of photosensors, the fiber optics plate including a plurality of fibers configured to guide the light emitted from the scintillation crystal to the plurality of photosensors.
摘要翻译：正电子发射断层摄影扫描仪系统，其包括彼此相邻布置以形成圆柱形检测器环的检测器模块。每个检测器模块包括闪烁晶体元件阵列，多个光电传感器布置成覆盖晶体元件阵列并被配置为接收从晶体元件阵列发射的光，以及布置在闪烁晶体阵列之间的光纤板元件和多个光电传感器，所述光纤板包括被配置为将从闪烁晶体发射的光引导到多个光电传感器的多个光纤。

5. 发明授权

US08809792B2 Field-of-view-dependent coincidence window for positron emission tomography 有权
标题翻译：用于正电子发射断层扫描的视场相关符合窗口
公开(公告)号：US08809792B2
公开(公告)日：2014-08-19
申请号：US13630787
申请日：2012-09-28
申请人： Wenli Wang , Daniel Gagnon , Xiaofeng Niu
发明人： Wenli Wang , Daniel Gagnon , Xiaofeng Niu
IPC分类号： G06F19/00 , G01T1/164 , G01T1/29 , A61B6/03 , G06T11/00
CPC分类号： G01T1/2985 , A61B6/03 , A61B6/032 , A61B6/037 , A61B6/4258 , A61B6/4417 , A61B6/5205 , G06F19/00 , G06T11/005
摘要： A method and apparatus for determining a coincidence window for imaging a region of interest of an object using a Positron Emission Tomography (PET) scanner. The method includes determining a diameter of a transverse field of view (FOV) for imaging the region of interest of the object; and calculating the coincidence window based on the determined diameter, a ring diameter of the PET scanner, an axial length of the PET scanner, and a time-of-flight resolution of the PET scanner.
摘要翻译：一种用于使用正电子发射断层摄影（PET）扫描仪确定用于对物体感兴趣区域成像的符合窗口的方法和装置。该方法包括确定用于对物体的感兴趣区域成像的横视场（FOV）的直径; 以及基于确定的直径，PET扫描仪的环直径，PET扫描器的轴向长度和PET扫描仪的飞行时间分辨率来计算重合窗口。

6. 发明授权

US08660636B2 Regional reconstruction and quantitative assessment in list mode PET imaging 有权
标题翻译：列表模式PET成像中的区域重建和定量评估
公开(公告)号：US08660636B2
公开(公告)日：2014-02-25
申请号：US13145115
申请日：2009-12-23
申请人： Daniel Gagnon , Piotr J. Maniawski
发明人： Daniel Gagnon , Piotr J. Maniawski
IPC分类号： A61B5/00
CPC分类号： G06T11/006 , A61B6/037
摘要： A method for reconstructing list mode data comprises: reconstructing all list mode data of a list mode data set (30, 160) to generate a first reconstructed image (32, 62); selecting a sub-set of the list mode data set; and reconstructing the sub-set of the list mode data set to generate an enhanced reconstructed image (84, 86). An image generation system comprises: a reconstruction module (24) configured to perform a standard reconstruction of a list mode data set to generate a standard reconstructed image (32, 62); and a re-reconstruction module (24, 70, 80, 82, 150, 152, 154) configured to perform a reconstruction other than the standard reconstruction of at least a portion of the list mode data set to generate an enhanced reconstructed image (84, 86).
摘要翻译：重建列表模式数据的方法包括：重建列表模式数据集（30,160）的所有列表模式数据，以生成第一重建图像（32,62）; 选择列表模式数据集的子集; 以及重建列表模式数据集的子集以生成增强的重建图像（84,86）。一种图像生成系统包括：重建模块（24），被配置为执行列表模式数据集的标准重建以生成标准重建图像（32,62）; 以及重建重建模块（24,70,80,82,150,152,154），其被配置为执行不同于所述列表模式数据集的至少一部分的标准重建的生成增强重建图像（84 ，86）。

7. 发明授权

US08516636B2 Patient bed for PET/MR imaging systems 有权
标题翻译： PET / MR成像系统的病床
公开(公告)号：US08516636B2
公开(公告)日：2013-08-27
申请号：US12195655
申请日：2008-08-21
申请人： Daniel Gagnon , Michael A. Morich , Douglas M. Blakeley
发明人： Daniel Gagnon , Michael A. Morich , Douglas M. Blakeley
IPC分类号： A61B6/04
CPC分类号： A61B5/0555 , A61B5/0035 , A61B6/032 , A61B6/037 , A61B6/4417 , A61B6/4429
摘要： A hybrid imaging system and a patient bed for same are disclosed. The hybrid imaging system includes a magnetic resonance scanner and a second modality imaging system spaced apart from the magnetic resonance scanner by a gap. In some embodiments, the gap is less than seven meters. The patient bed is disposed at least partially in the gap between the magnetic resonance scanner and the second modality imaging system, and includes a linearly translatable patient support pallet aligned to be selectively moved into an examination region of the magnetic resonance scanner for magnetic resonance imaging and into an examination region of the second modality imaging system for second modality imaging. In some embodiments, a linear translation range of the linearly translatable pallet is less than five times a length of the patient support pallet along the direction of linear translation.
摘要翻译：公开了一种混合成像系统和用于其的患者床。混合成像系统包括磁共振扫描器和通过间隙与磁共振扫描器隔开的第二模态成像系统。在一些实施例中，间隙小于7米。患者床至少部分地设置在磁共振扫描仪和第二模态成像系统之间的间隙中，并且包括可选择性地移动到用于磁共振成像的磁共振扫描仪的检查区域中的线性可平移的患者支撑托盘，进入用于第二模态成像的第二模态成像系统的检查区域。在一些实施例中，线性平移托盘的线性平移范围小于患者支撑托盘沿线性平移方向的长度的五倍。

8. 发明授权

US08460549B2 Apparatus and method for the non-chemical stabilization of bio-solids 有权
标题翻译：用于非化学稳定生物固体的装置和方法
公开(公告)号：US08460549B2
公开(公告)日：2013-06-11
申请号：US11434764
申请日：2006-05-17
申请人： Harold E. Haney , Robert Freeman , Rodrigo Lobo Morales , Daniel Gagnon
发明人： Harold E. Haney , Robert Freeman , Rodrigo Lobo Morales , Daniel Gagnon
IPC分类号： C02F1/20
CPC分类号： C02F1/34 , C02F1/727 , C02F1/74 , C02F3/00 , C02F9/00 , C02F11/00 , C02F2001/007 , C02F2301/066 , C02F2303/06
摘要： An apparatus for treating an aqueous medium containing microorganisms comprises an intake for receiving the aqueous medium containing microorganisms. A pressure differential inducer is associated to the intake so as to receive the aqueous medium containing microorganisms with a desired level of gas saturation. The pressure differential inducer is actuatable to expose the aqueous medium containing microorganisms with a desired level of gas saturation to accelerations so as to cause cell wall rupture of the microorganisms. An outlet is associated with the pressure differential inducer for outletting the treated aqueous medium containing ruptured microorganism cells and contents. The treated aqueous medium containing ruptured cell wall of the microorganisms is disposed of and/or recycled.
摘要翻译：用于处理含有微生物的水性介质的装置包括用于接收含有微生物的水性介质的摄取元件。压差诱导剂与进食相关联，以便接收含有所需水分气体饱和度的微生物的水性介质。压差诱导剂可致动以将含有所需水平的气体饱和的微生物的含水介质暴露于加速度，从而引起微生物的细胞壁破裂。出口与用于出口含有破裂的微生物细胞和内容物的经处理的水性介质的压差诱导剂相关联。含有微生物破裂的细胞壁的经处理的水性介质被处理和/或再循环。

9. 发明授权

US08378305B2 Modular multi-geometry PET system 有权
标题翻译：模块化多形PET系统
公开(公告)号：US08378305B2
公开(公告)日：2013-02-19
申请号：US12935302
申请日：2009-03-20
申请人： Daniel Gagnon , Douglas B. McKnight
发明人： Daniel Gagnon , Douglas B. McKnight
IPC分类号： G01T1/20
CPC分类号： G01T1/2985 , A61B6/037 , G01R33/481
摘要： When performing positron emission tomography (PET) scanning and image reconstruction, a primary PET system (10) with a primary PET detector array (12) is used to image a patient or subject, and a secondary PET detector array (14) is coupled to the system at specific input points to mitigate unnecessary duplication of system components. The primary system (10) provides PET data processing and reconstruction for the secondary array (14), in addition to the first array (12). An adjustable array (120) includes radially movable detectors (122) and stationary detectors (124) with different crystal resolutions. The movable detectors (122) are alternately positioned with the stationary detectors (124) at a first radius to form a large detector ring, or are positioned at a second, smaller radius without the stationary detectors (124) to form a small detector ring.
摘要翻译：当进行正电子发射断层扫描（PET）扫描和图像重建时，使用具有主要PET检测器阵列（12）的主要PET系统（10）对患者或受试者进行成像，并且将辅助PET检测器阵列（14）耦合到该系统在特定的输入点，以减轻不必要的系统组件重复。除了第一阵列（12）之外，主系统（10）还为次级阵列（14）提供PET数据处理和重建。可调节阵列（120）包括具有不同晶体分辨率的径向可移动探测器（122）和固定探测器（124）。移动检测器（122）与第一半径处的固定式检测器（124）交替定位以形成大的检测器环，或者定位在第二较小的半径处，而没有固定的检测器（124）以形成小的检测器环。

10. 发明授权

US08324580B1 Photomultiplier tube with integrated fast analog-to-digital conversion for event derandomizer and digital time stamping 有权
标题翻译：光电倍增管，集成了快速模数转换，用于事件脱模器和数字时间戳
公开(公告)号：US08324580B1
公开(公告)日：2012-12-04
申请号：US13153611
申请日：2011-06-06
申请人： Daniel Gagnon , Kent Burr
发明人： Daniel Gagnon , Kent Burr
IPC分类号： G01T1/161
CPC分类号： G01T1/1647
摘要： A digital photosensor that includes a photomultiplier tube (PMT) including a power distribution circuit, the PMT outputting an analog signal in response to received light; an analog-to-digital converter (ADC) to receive the analog signal and to generate a digital signal; and a non-transitory memory storing manufacturing parameters of the PMT and operational parameters of the PMT, the operational parameters being calculated by a parameter calculation unit during operation of the PMT, wherein the PMT, the ADC, and the memory are integrated into a single housing.
摘要翻译：一种数字光电传感器，包括具有功率分配电路的光电倍增管（PMT），所述PMT响应于所接收的光而输出模拟信号; 模数转换器（ADC），用于接收模拟信号并产生数字信号; 以及存储PMT的制造参数和PMT的运行参数的非暂时性存储器，所述运行参数由PMT运转中的参数运算单元计算，其中所述PMT，所述ADC和所述存储器被集成为单个住房。

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