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11.发明授权公开(公告)号：US06356619B1
公开(公告)日：2002-03-12
申请号：US09586435
申请日：2000-06-02
IPC分类号： H01J3506
摘要： In an X-ray tube having an anode supported for rotation and an annular target track mounted upon the anode, a cathode spaced apart from the anode projects a beam of electrons onto the target track within a focal spot. The cathode is designed to normalize the impact temperature across the focal spot, as a function of length. In accordance therewith, the cathode comprises a filament and a cathode cup, wherein the filament is disposed to project the electron beam onto the target track to generate X-rays, when a high voltage potential difference is established between the filament and the anode. The filament and the cathode cup are respectively configured to selectively form the electron beam so that the beam provides an electron distribution within the focal point which maintains each point within the focal spot at substantially the same temperature.
摘要翻译： 在具有被支撑为旋转的阳极和安装在阳极上的环形目标轨道的X射线管中，与阳极间隔开的阴极在焦点内将一束电子投射到目标轨迹上。 阴极被设计成使焦点上的冲击温度归一化为长度的函数。 根据此，阴极包括细丝和阴极杯，其中当灯丝和阳极之间建立高电压电位差时，灯丝设置成将电子束投射到靶轨道上以产生X射线。 灯丝和阴极杯分别被配置成选择性地形成电子束，使得光束在焦点内提供电子分布，其将焦点内的每个点保持在基本相同的温度。
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公开(公告)号：US08923484B2
公开(公告)日：2014-12-30
申请号：US13602080
申请日：2012-08-31
申请人： Yun Zou , Scott Stephen Zelakiewicz , Floribertus P. M. Heukensfeldt Jansen , Jeffrey Wayne Eberhard , Fengfeng Tao , Timothy Powers , Thomas Edmund Sjoberg
发明人： Yun Zou , Scott Stephen Zelakiewicz , Floribertus P. M. Heukensfeldt Jansen , Jeffrey Wayne Eberhard , Fengfeng Tao , Timothy Powers , Thomas Edmund Sjoberg
CPC分类号： H01J35/28 , H01J35/025 , H01J35/14
摘要： A motion correction system and method for motion correction for an x-ray tube is presented. One embodiment of the motion correction system includes a sensing unit coupled to an x-ray tube to determine a distance with which an impingement location of an electron beam generated by the x-ray tube deviates from a determined location due to motion of the x-ray tube. The motion correction system further includes a control unit coupled to the sensing unit to generate a control signal corresponding to the distance with which the impingement location of the electron beam deviates. Also, the motion correction system includes a deflection unit coupled to the control unit to steer the electron beam to the determined location based on the generated control signal.
摘要翻译： 提出了用于X射线管的运动校正系统和运动校正方法。 运动校正系统的一个实施例包括耦合到X射线管的感测单元，以确定由x射线管产生的电子束的冲击位置由于X射线管的运动而偏离确定的位置的距离， 射线管。 运动校正系统还包括耦合到感测单元的控制单元，以产生对应于电子束的冲击位置偏离的距离的控制信号。 此外，运动校正系统包括耦合到控制单元的偏转单元，以基于所生成的控制信号将电子束转向确定的位置。
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公开(公告)号：US08552389B2
公开(公告)日：2013-10-08
申请号：US12915873
申请日：2010-10-29
IPC分类号： G21K1/02
CPC分类号： A61B6/037 , A61B6/06 , A61B6/4258 , A61B6/4291 , A61B6/501 , A61B6/54 , G21K1/025
摘要： A system and method for collimation in diagnostic imaging systems is provided. One collimation system includes a collimator for a radiation imaging detector having a plurality of adjustable segments and a plurality of collimator holes within each of the plurality of adjustable segments. The plurality of adjustable segments are configured to move independently of a detector to adjust a field of view of the collimator holes.
摘要翻译： 提供了诊断成像系统中准直的系统和方法。 一个准直系统包括用于辐射成像检测器的准直器，其具有多个可调节段和多个可调节段内的多个准直器孔。 多个可调节段被构造成独立于检测器移动以调节准直器孔的视场。
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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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15.发明授权Method and system of optical imaging for target detection in a scattering medium 失效散射介质中目标检测的光学成像方法与系统公开(公告)号：US07692160B2
公开(公告)日：2010-04-06
申请号：US11756135
申请日：2007-05-31
申请人： Deborah Stutz Lee , Kajoli Banerjee Krishnan , Siavash Yazdanfar , Stephen Johnson Lomnes , Floribertus P. M. Heukensfeldt Jansen , Stephen Andrew Latham
发明人： Deborah Stutz Lee , Kajoli Banerjee Krishnan , Siavash Yazdanfar , Stephen Johnson Lomnes , Floribertus P. M. Heukensfeldt Jansen , Stephen Andrew Latham
IPC分类号： G01J1/58
CPC分类号： A61B5/0059
摘要： A method and system for fluorescence imaging of a target in a subject comprising a scattering medium is provided. The method comprises illuminating one or more points on a surface of the scattering medium using an illumination source, wherein the plurality of points define an illumination region, collecting emitted light from an illumination region and an area away from the illumination region, and generating an image of the scattering medium using the emitted light.
摘要翻译： 提供了一种用于包括散射介质的受试者中的靶的荧光成像的方法和系统。 该方法包括使用照明源照射散射介质的表面上的一个或多个点，其中多个点限定照明区域，收集来自照明区域的发射光和远离照明区域的区域，以及生成图像 的散射介质。
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公开(公告)号：US07375338B1
公开(公告)日：2008-05-20
申请号：US11714970
申请日：2007-03-07
IPC分类号： G21K1/02
CPC分类号： G21K1/025
摘要： Embodiments include an imaging system that includes a collimator support base and a detector assembly. The collimator support base is configured to interchangeably accept a slit aperture collimator and a pinhole aperture collimator. The slit aperture collimator has either a corresponding septa assembly or a corresponding crossed-slit collimator. The detector assembly is configured to detect collimated gamma rays emanating from a subject in a field of view of the imaging system and generate one or more signals in response to the detected gamma rays. Methods of adjusting performance of imaging systems are also provided.
摘要翻译： 实施例包括包括准直器支撑基座和检测器组件的成像系统。 准直器支撑基座被配置为可互换地接受狭缝孔准直器和针孔准直器。 狭缝孔径准直器具有相应的隔片组件或相应的交叉狭缝准直器。 检测器组件被配置为在成像系统的视野中检测从对象发射的准直伽马射线，并响应于检测到的伽马射线生成一个或多个信号。 还提供了调整成像系统性能的方法。
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公开(公告)号：US07569826B2
公开(公告)日：2009-08-04
申请号：US11731856
申请日：2007-03-30
IPC分类号： G01F23/00
摘要： Embodiments relate to collimator assemblies having one or more apertures therein. At least one of the one or more apertures has an aperture size that is configured for adjustment during an examination. The collimator assembly is configured so that gamma rays can pass through the one or more apertures, but the remainder of the collimator assembly is substantially gamma ray absorbent. Embodiments also related to imaging systems and methods of imaging.
摘要翻译： 实施例涉及其中具有一个或多个孔的准直器组件。 所述一个或多个孔中的至少一个具有被配置为在检查期间进行调整的孔径尺寸。 准直器组件被配置成使得γ射线可以穿过一个或多个孔，但准直器组件的其余部分基本上是γ射线吸收剂。 实施例还涉及成像系统和成像方法。
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公开(公告)号：US07439514B1
公开(公告)日：2008-10-21
申请号：US11731883
申请日：2007-03-30
IPC分类号： G21K1/02
CPC分类号： G01T1/1648 , G01T1/1611 , G21K1/04
摘要： Embodiments relate to pinhole collimator assemblies having one or more adjustable size pinhole apertures therein. The pinhole collimator assembly is configured so that gamma rays can pass through the collimator assembly, but the remainder of the collimator assembly is substantially gamma ray absorbent. Embodiments also relate to imaging systems and methods of adjusting pinhole collimator performance.
摘要翻译： 实施例涉及其中具有一个或多个可调节尺寸的针孔的针孔准直器组件。 针孔准直器组件被配置成使γ射线可以通过准直器组件，但准直器组件的其余部分基本上是γ射线吸收剂。 实施例还涉及成像系统和调整针孔准直器性能的方法。
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公开(公告)号：US07339174B1
公开(公告)日：2008-03-04
申请号：US11704593
申请日：2007-02-09
IPC分类号： G02K1/02
摘要： Collimator assemblies that include an inner combined collimator and an outer collimator are provided. The inner combined collimator includes a first portion having one or more slit apertures therein, and a second portion having one or more pinhole apertures therein. The outer collimator includes one or more septa spaced on a side of the first portion of the inner combined collimator. The slit apertures of the inner combined collimator and the septa of the outer collimator are arranged to define a plurality of apertures through the collimator assembly. Imaging systems that include the collimator assemblies and a detector assembly are also provided. The detector assembly may be configured to detect gamma rays emanating from a field of view that pass through apertures defined by the collimator assembly and to generate one or more signals in response to the detected gamma rays. Methods of imaging a field view using the collimating assembly are also provided.
摘要翻译： 提供了包括内部组合准直器和外部准直器的准直器组件。 内部组合准直器包括其中具有一个或多个狭缝孔的第一部分和在其中具有一个或多个针孔的第二部分。 外部准直器包括在内部组合准直仪的第一部分的一侧上间隔开的一个或多个隔片。 内部组合准直仪的狭缝孔和外部准直器的隔片被布置成限定穿过准直器组件的多个孔。 还提供了包括准直器组件和检测器组件的成像系统。 检测器组件可以被配置为检测从通过由准直器组件限定的孔的视场发出的伽马射线，并响应于检测到的伽马射线产生一个或多个信号。 还提供了使用准直组件对场视图成像的方法。
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公开(公告)号：US20080004533A1
公开(公告)日：2008-01-03
申请号：US11480162
申请日：2006-06-30
IPC分类号： A61B6/00
CPC分类号： A61B5/0059 , A61B5/415 , A61B5/418 , A61B6/508 , A61B90/361 , A61B2090/366
摘要： Optical imaging systems and methods are disclosed. The optical imaging system includes an electronic imaging device configured to capture an image of a site and a projector. An optical imaging system includes a projector configured to project a visible representation of the captured image onto the site during surgery. Another optical imaging system includes an optical element capable of aligning an optical axis of the electronic imaging device and the projector on a same optical axis. Also disclosed are methods for displaying an image on to a site. A method includes capturing a fluorescent image of a surgical site; and projecting a visible representation of the captured image onto the surgical site during surgery. Another method includes projecting a visible representation of a captured image of a site onto the site along a same optical axis along which the image is captured.
摘要翻译： 公开了光学成像系统和方法。 光学成像系统包括被配置为捕获场地和投影仪的图像的电子成像装置。 光学成像系统包括投影仪，其被配置为在手术期间将所捕获的图像的可见表示投影到所述部位上。 另一种光学成像系统包括能够将电子成像装置的光轴与投影仪对准在同一光轴上的光学元件。 还公开了用于将图像显示在站点上的方法。 一种方法包括捕获手术部位的荧光图像; 并且在手术期间将所捕获图像的可视表示投影到手术部位上。 另一种方法包括将图像的捕获图像的可视表示投影到沿着图像被捕获的同一光轴上的站点上。
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