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1. 发明授权

US07825383B2 Mobile camera for organ targeted imaging 有权
标题翻译：用于器官靶向成像的移动相机
公开(公告)号：US07825383B2
公开(公告)日：2010-11-02
申请号：US11524798
申请日：2006-09-21
申请人： A Hans Vija , James T. Chapman , Peggy Hawman , Ansgar Graw , John Thomas Pawlak , Guenter Hahn
发明人： A Hans Vija , James T. Chapman , Peggy Hawman , Ansgar Graw , John Thomas Pawlak , Guenter Hahn
IPC分类号： G01T1/166
CPC分类号： G01T1/1641 , A61B6/037 , G01T1/1642
摘要： A mobile detector system for use in the detection of radiation photons. The detector system includes an exterior casing, having an internal area. The internal area has an interior periphery and an exterior periphery, at least one rail, at least one mobile camera, that is movably mounted on the at least one rail, and at least one motor. The motor drives at least one mobile camera, and the at least one mobile camera is movable along at least one rail within the exterior casing, to a plurality of radiation receiving positions.
摘要翻译：用于检测辐射光子的移动检测器系统。检测器系统包括具有内部区域的外部壳体。内部区域具有内部周边和外部周边，至少一个轨道，至少一个移动照相机，其可移动地安装在至少一个轨道上，以及至少一个电动机。所述马达驱动至少一个移动式照相机，并且所述至少一个移动照相机可沿所述外部壳体内的至少一个轨道移动到多个辐射接收位置。

2. 发明申请

US20080073541A1 Mobile camera for organ targeted imaging 有权
标题翻译：用于器官靶向成像的移动相机
公开(公告)号：US20080073541A1
公开(公告)日：2008-03-27
申请号：US11524798
申请日：2006-09-21
申请人： A. Hans Vija , James T. Chapman , Peggy Hawman , Ansgar Graw , John Thomas Pawlak , Guenter Hahn
发明人： A. Hans Vija , James T. Chapman , Peggy Hawman , Ansgar Graw , John Thomas Pawlak , Guenter Hahn
IPC分类号： G01T1/166
CPC分类号： G01T1/1641 , A61B6/037 , G01T1/1642
摘要： A mobile detector system for use in the detection of radiation photons. The detector system includes an exterior casing, having an internal area. The internal area has an interior periphery and an exterior periphery, at least one rail, at least one mobile camera, that is movably mounted on the at least one rail, and at least one motor. The motor drives at least one mobile camera, and the at least one mobile camera is movable along at least one rail within the exterior casing, to a plurality of radiation receiving positions.
摘要翻译：用于检测辐射光子的移动检测器系统。检测器系统包括具有内部区域的外部壳体。内部区域具有内部周边和外部周边，至少一个轨道，至少一个移动照相机，其可移动地安装在至少一个轨道上，以及至少一个电动机。所述马达驱动至少一个移动式照相机，并且所述至少一个移动照相机可沿所述外部壳体内的至少一个轨道移动到多个辐射接收位置。

3. 发明授权

US07723674B2 Attenuation correction for SPECT imaging using non-classical orbits of many small gamma cameras 有权
标题翻译：使用许多小型伽马相机的非经典轨道进行SPECT成像的衰减校正
公开(公告)号：US07723674B2
公开(公告)日：2010-05-25
申请号：US11524800
申请日：2006-09-21
申请人： A Hans Vija , James T. Chapman , John Thomas Pawlak
发明人： A Hans Vija , James T. Chapman , John Thomas Pawlak
IPC分类号： G12B13/00
CPC分类号： G01T1/1611
摘要： Attenuation correction data is obtained from one or more transmission sources to calculate the attenuation factors of a reconstruction area of an object being imaged by a nuclear medicine apparatus, such as a SPECT gamma camera. The transmission sources are capable of swiveling the direction of the transmission to correspond with the direction of capture of the gamma detectors. Additionally, the transmission sources are capable of linear movement to correspond with any linear movement of the detectors. The transmission sources are able to follow the same path as the detectors in order to determine the attenuation factors through the same reconstruction area being scanned by the detectors.
摘要翻译：从一个或多个发射源获得衰减校正数据，以计算由诸如SPECTγ照相机的核医学设备成像的对象的重建区域的衰减因子。传输源能够使传输的方向旋转以对应于伽马探测器的捕获方向。此外，传输源能够线性移动以对应于检测器的任何线性运动。传输源能够遵循与检测器相同的路径，以便通过由检测器扫描的相同重建区域来确定衰减因子。

4. 发明申请

US20080073539A1 Attenuation correction for SPECT imaging using non-classical orbits of many small gamma cameras 有权
标题翻译：使用许多小型伽马相机的非经典轨道进行SPECT成像的衰减校正
公开(公告)号：US20080073539A1
公开(公告)日：2008-03-27
申请号：US11524800
申请日：2006-09-21
申请人： A Hans Vija , James T. Chapman , John Thomas Pawlak
发明人： A Hans Vija , James T. Chapman , John Thomas Pawlak
IPC分类号： G01T1/166
CPC分类号： G01T1/1611
摘要： Attenuation correction data is obtained from one or more transmission sources to calculate the attenuation factors of a reconstruction area of an object being imaged by a nuclear medicine apparatus, such as a SPECT gamma camera. The transmission sources are capable of swiveling the direction of the transmission to correspond with the direction of capture of the gamma detectors. Additionally, the transmission sources are capable of linear movement to correspond with any linear movement of the detectors. The transmission sources are able to follow the same path as the detectors in order to determine the attenuation factors through the same reconstruction area being scanned by the detectors.
摘要翻译：从一个或多个发射源获得衰减校正数据，以计算由诸如SPECTγ照相机的核医学设备成像的对象的重建区域的衰减因子。传输源能够使传输的方向旋转以对应于伽马探测器的捕获方向。此外，传输源能够线性移动以对应于检测器的任何线性运动。传输源能够遵循与检测器相同的路径，以便通过由检测器扫描的相同重建区域来确定衰减因子。

5. 发明授权

US07932498B2 Method for generation of SPECT trajectory data from CT data 失效
标题翻译：从CT数据生成SPECT轨迹数据的方法
公开(公告)号：US07932498B2
公开(公告)日：2011-04-26
申请号：US12240818
申请日：2008-09-29
申请人： Sharon Xiaorong Wang , John Thomas Pawlak , Govind Pai
发明人： Sharon Xiaorong Wang , John Thomas Pawlak , Govind Pai
IPC分类号： G01T1/166
CPC分类号： G06T11/005
摘要： A method for optimizing the scanning trajectory of a radiation detector device, e.g., a SPECT scanning device, about an object generally includes: obtaining object image data using a different imaging modality, e.g., a CT scanning device, determining a maximum object boundary based on the image data, calculating an optimal scan trajectory of the SPECT scanning device relative to the object based on the maximum object boundary, scanning the object with the SPECT scanning device along the optimal scan trajectory to detect gamma photons emanating from the object, from which an image can be reconstructed from the detected gamma photons. Preferably, the SPECT device includes at least two detectors arranged at a pre-selected angle relative to one another and the optimal scan trajectory minimizes the distance between the detectors and the object while maximizing the geometric efficiency of the detectors relative to the object.
摘要翻译：用于优化关于物体的辐射检测器装置（例如，SPECT扫描装置）的扫描轨迹的方法通常包括：使用不同的成像模式获取对象图像数据，例如CT扫描装置，基于图像数据，基于最大对象边界计算SPECT扫描装置相对于对象的最佳扫描轨迹，沿着最佳扫描轨迹用SPECT扫描装置扫描对象以检测从对象发出的伽马光子，可以从检测到的伽马光子重建图像。优选地，SPECT装置包括相对于彼此以预选角度布置的至少两个检测器，并且最佳扫描轨迹使检测器和物体之间的距离最小化，同时使检测器相对于物体的几何效率最大化。

6. 发明授权

US06557431B2 Fail-safe ball screw 失效
公开(公告)号：US06557431B2
公开(公告)日：2003-05-06
申请号：US09773821
申请日：2001-02-02
申请人： John Thomas Pawlak
发明人： John Thomas Pawlak
IPC分类号： F16H2522
CPC分类号： F16H25/2472 , F16H25/2204 , Y10T74/19698 , Y10T74/19721 , Y10T74/19753
摘要： A fail-safe ball screw assembly has a double-start screw and a corresponding nut. The screw has a first helix with a truncated, smaller diameter flat and an intertwined second helix with an extended, larger diameter flat. Similarly, the corresponding nut has a first helix with an extended, larger diameter flat and an intertwined second helix with a truncated, smaller diameter flat. When the screw is inserted with the nut, the screw's truncated first helix is paired with the nut's extended first helix, and the screw's extended second helix is paired with the nut's truncated second helix. The nut and screw helixes combine to form channels in which bearings balls travel. The bearings allow the fail-safe ball screw assembly to operate with high efficiency and precision, while the overlapping structure of the helixes prevents catastrophic failure caused by the removal or loss of the bearing balls. In particular, the extended, larger diameter flats of second screw helix and the first nut helix interact, similar to commonly threaded screws, to prevent the unintended separation of the screw and nut. Another implementation of the present invention connects a torque sensor to the ball screw assembly to detect deterioration.

7. 发明授权

US07470896B2 Non-circular-orbit detection method and apparatus 有权
标题翻译：非圆轨道检测方法和装置
公开(公告)号：US07470896B2
公开(公告)日：2008-12-30
申请号：US10608704
申请日：2003-06-27
申请人： John Thomas Pawlak , Anthony Perrone
发明人： John Thomas Pawlak , Anthony Perrone
IPC分类号： G12B13/00
CPC分类号： G01T1/1644 , A61B6/027 , A61B6/037
摘要： A non-circular-orbit detection method and apparatus is disclosed. In some embodiments, the method includes: locating first and second detectors, displaced with respect to one another, a distance from a patient; moving the first and second detectors in a direction towards the patient until a first sensor senses a first point of the patient at a first sensing position; moving the first and second detectors in a second direction from the first sensing position until a second sensor senses a second point of the patient at a second sensing position; and moving the first and second detectors in a non-circular-orbit around the patient. Preferably, the method includes determining the non-circular-orbit based on, among other things, locations of the first point and the second point.
摘要翻译：公开了一种非圆轨道检测方法和装置。在一些实施例中，该方法包括：定位相对于彼此移位的第一和第二检测器，距离患者的距离; 沿着朝向患者的方向移动第一和第二检测器，直到第一传感器在第一感测位置处感测到患者的第一点; 将第一和第二检测器从第一感测位置向第二方向移动，直到第二传感器在第二检测位置处感测到患者的第二点; 以及使所述第一和第二检测器在所述患者周围的非圆形轨道中移动。优选地，该方法包括基于第一点和第二点的位置来确定非圆轨道。

8. 发明申请

US20130141098A1 Alignment Phantom for MR/PET System 有权
标题翻译： MR / PET系统对准体模
公开(公告)号：US20130141098A1
公开(公告)日：2013-06-06
申请号：US13753894
申请日：2013-01-30
申请人： Jun Bao , David Faul , Ralf Ladebeck , John Thomas Pawlak , Elmar Rummert , Charles C. Watson
发明人： Jun Bao , David Faul , Ralf Ladebeck , John Thomas Pawlak , Elmar Rummert , Charles C. Watson
IPC分类号： G01R33/48
CPC分类号： G01R33/58 , G01R33/48 , G01R33/481 , G01R33/4812 , G01T1/1603 , G01T7/005
摘要： A phantom for co-registering a magnetic resonance image and a nuclear medical image is disclosed. The phantom includes a longitudinal member having a first end cap and a second end cap and a chamber contained within the longitudinal member. The chamber contains a fluid for producing a first image using a first imaging modality. The phantom further includes a first rod disposed within the chamber of the longitudinal member. The first rod contains a radioactive substance for producing a second image using a second imaging modality.
摘要翻译：公开了用于共同配准磁共振图像和核医学图像的体模。该体模包括具有第一端盖和第二端盖以及容纳在纵向构件内的室的纵向构件。该腔室包含用于使用第一成像模态产生第一图像的流体。体模还包括设置在纵向构件的腔室内的第一杆。第一杆包含用于使用第二成像模态产生第二图像的放射性物质。

9. 发明申请

US20100148046A1 METHOD FOR COLLABORATIVE TUNING OF GAMMA CAMERA 有权
标题翻译：伽马相机协同调谐方法
公开(公告)号：US20100148046A1
公开(公告)日：2010-06-17
申请号：US12560055
申请日：2009-09-15
申请人： Sharon Xiaorong Wang , James Frank Caruba , John Thomas Pawlak
发明人： Sharon Xiaorong Wang , James Frank Caruba , John Thomas Pawlak
IPC分类号： G12B13/00 , G01T1/208
CPC分类号： G01T1/00 , G01T1/1648 , G01T7/005 , G12B13/00
摘要： A system and tuning method to collaboratively calibrate high voltage DAC values and Photomultiplier Tube DAC values of photomultiplier tubes of a gamma camera so that the detector produces a valid energy spectrum over the entire detector surface. A method for tuning a gamma camera having a plurality of photosensors, exposes the photosensors to scintillation photons corresponding to nuclear radiation of known energy; measures an energy output corresponding to each specific photosensor; calculates an average enemy output of all photosensors in the camera; collaboratively adjusts a DAC value corresponding to a voltage applied to a specific photosensor and a DACHV value corresponding to a high voltage applied to the camera based on the calculated average energy, energy output of each photosensor, and a target energy value corresponding to said known energy; and repeats the calibration until convergence is achieved between the average energy, energy output, and target energy.
摘要翻译：一种用于协调校准伽马相机的光电倍增管的高电压DAC值和光电倍增管DAC值的系统和调谐方法，使得检测器在整个检测器表面上产生有效的能谱。用于调整具有多个光电传感器的伽马照相机的方法，将光电传感器暴露于对应于已知能量的核辐射的闪烁光子; 测量对应于每个特定光电传感器的能量输出; 计算相机中所有光电传感器的平均敌方输出; 基于所计算的平均能量，每个光传感器的能量输出和对应于所述已知能量的目标能量值，协调地调整对应于施加到特定光电传感器的电压的DAC值和对应于施加到照相机的高电压的DACHV值 ; 并重复校准，直到在平均能量，能量输出和目标能量之间达到收敛。

10. 发明授权

US06600655B1 Integrated heat sink, detector module planarizer, and apparatus for ejecting detector modules 有权
标题翻译：集成散热器，检测器模块平面化器和用于喷射检测器模块的装置
公开(公告)号：US06600655B1
公开(公告)日：2003-07-29
申请号：US10141182
申请日：2002-05-09
申请人： George W. Dailey , John Thomas Pawlak
发明人： George W. Dailey , John Thomas Pawlak
IPC分类号： H05K720
CPC分类号： H05K7/20509 , Y10T29/53183
摘要： A planarizing heat sink plate having a top portion and a bottom portion is provided. The heat sink plate includes a plurality of receiving means formed therethrough and operable to receive a module ejection device, and at least one removing means formed therethrough and operable to receive a driving device. Also included is at least one planarizing projection formed on the bottom portion and adapted to receive a radiographic sensor module. The at least one removing means is disposed between the plurality of receiving means, and the at least one planarizing projection corresponds to the at least one removing means. The heat sink plate is a multi-functional device that can aid in forming an efficient radiographic detector head comprising a plurality of radiographic sensor modules in the same plane, safely removing the radiographic sensor modules, and conducting heat away from the radiographic sensor modules.
摘要翻译：提供具有顶部和底部的平坦化散热板。散热板包括通过其形成并可操作以接收模块排出装置的多个接收装置，以及穿过其形成并可操作以接收驱动装置的至少一个移除装置。还包括形成在底部上并适于接收射线照相传感器模块的至少一个平坦化突起。所述至少一个移除装置设置在所述多个接收装置之间，并且所述至少一个平坦化突起对应于所述至少一个移除装置。散热板是一种多功能装置，可以帮助形成一个有效的放射线检测器头，它包括在同一平面上的多个放射线检测传感器模块，安全地移除射线照相传感器模块，并将热量从射线照相传感器模块传导出去。

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