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1. 发明授权

US5376795A Emission-transmission imaging system using single energy and dual energy transmission and radionuclide emission data 失效
标题翻译：使用单能量和双能量传输和放射性核素发射数据的发射透射成像系统
公开(公告)号：US5376795A
公开(公告)日：1994-12-27
申请号：US958980
申请日：1992-10-09
申请人： Bruce H. Hasegawa , Robert G. Gould , Thomas F. Lang , J. Keenan Brown , Joseph A. Heanue , Christopher E. Cann
发明人： Bruce H. Hasegawa , Robert G. Gould , Thomas F. Lang , J. Keenan Brown , Joseph A. Heanue , Christopher E. Cann
IPC分类号： G01T1/164 , G01T1/29 , H05G1/60 , G01T1/166
CPC分类号： G01T1/1615 , A61B6/037 , A61B6/5235 , G01T1/1611 , G01T1/1642 , G01T1/1647 , G01T1/1648 , G01T1/2985 , H05G1/60
摘要： Radionuclide emission imaging is improved by correcting emission-transmission data for attenuation along calculated path lengths and through calculated basis material. X-ray transmission data are used to develop an attenuation map through an object which is then used in reconstructing an image based on emission data, Radiation detection circuitry is provided which has different operating modes in detecting the x-ray and emission photons passing through the object. An iterative process is used to reconstruct the radionuclide distribution using the radionuclide projection data and the attenuation map based on physical characteristics of the object being imaged. Subsets of the complete radionuclide projection data are used to reconstruct image subsets of the radionuclide distribution. The image subsets can be generated concurrently with the acquisition of the radionuclide projection data or following acquisition of all data.
摘要翻译：通过根据计算的路径长度和通过计算的基础材料校正用于衰减的发射数据来改善放射性核素发射成像。 X射线透射数据用于通过物体开发衰减图，该物体然后用于基于发射数据重建图像。提供了辐射检测电路，其在检测通过X射线的x射线和发射光子时具有不同的操作模式目的。迭代过程用于使用放射性核素投影数据和基于被成像对象的物理特性的衰减图来重构放射性核素分布。完整的放射性核素投影数据的子集用于重建放射性核素分布的图像子集。图像子集可以与获取放射性核素投影数据同时产生，也可以在获取所有数据之后产生。

2. 发明授权

US5598003A Large field of view transmission and small field of view emission scan within gamma camera system 失效
标题翻译：伽马相机系统中的大视野传输和小视野发射扫描
公开(公告)号：US5598003A
公开(公告)日：1997-01-28
申请号：US438834
申请日：1995-05-11
申请人： Steven M. Jones , Michael J. Janicki , Thomas F. Lang , J. Keenan Brown , John R. Liebig , Xiaohan Wang
发明人： Steven M. Jones , Michael J. Janicki , Thomas F. Lang , J. Keenan Brown , John R. Liebig , Xiaohan Wang
IPC分类号： G01T1/164 , G01T1/161
CPC分类号： G01T1/1648 , A61B6/037 , G01T1/1642
摘要： A method and apparatus for collecting transmission information utilizing a large field of view of a detector and for collecting emission data using a small field of view window of the same detector. The system employs the large field of view of a scintillation detector in order to collect transmission data for the entire body being scanned. Such a technique improves the quantitative capability of emission data by acquiring non-truncated attenuation factors. The emission data of a small field of view window is collected so that high resolution image pixels are used for processing the emission data (e.g., of a particular body organ). Since a large field of view is used for collecting the transmission data, the imaging pixels for transmission data are of lower resolution than the emission data. The emission data can be collected using a roving zoom technique during an ECT scan. A computation adjusts the transmission data to account for the known location of the emission zoom window on the crystal and for the different pixel sizes between the full field of view transmission scan of the body and the smaller roving electronic field of view emission scan of the body organ.
摘要翻译：一种用于利用检测器的大视野来收集传输信息并且使用相同检测器的小视野窗收集发射数据的方法和装置。该系统采用闪烁检测器的大视野，以便收集被扫描的整个身体的传输数据。这种技术通过获取非截断衰减因子来提高发射数据的定量能力。收集小视场窗口的发射数据，使得高分辨率图像像素用于处理发射数据（例如，特定身体器官）。由于使用大的视野来收集传输数据，所以用于传输数据的成像像素的分辨率低于发射数据。在ECT扫描期间，可以使用粗纱放大技术收集排放数据。计算调整传输数据以考虑在晶体上的发射变焦窗口的已知位置以及身体的全视野透射扫描与身体的较小的粗纱电子视野发射扫描之间的不同像素尺寸器官。

3. 发明授权

US5596197A Dual synchronized sliding transmission detection windows for dual transmission line sources 失效
标题翻译：用于双路传输线路源的双同步滑动传输检测窗口
公开(公告)号：US5596197A
公开(公告)日：1997-01-21
申请号：US439222
申请日：1995-05-11
申请人： Steven M. Jones , Thomas F. Lang , John R. Liebig , Xiaohan Wang
发明人： Steven M. Jones , Thomas F. Lang , John R. Liebig , Xiaohan Wang
IPC分类号： G01T1/164 , G01T1/161
CPC分类号： G01T1/1615 , A61B6/037 , G01T1/1611 , G01T1/1642 , G01T1/1648
摘要： A mechanism and method for performing transmission and emission scanning sessions with two line sources and two detectors wherein two sliding transmission detection windows are employed to differentiate between transmission and emission photons. Transmission and emission data can be collected simultaneously. This system provides that the dual transmission detection windows are each associated with a particular line source and move in synchronization with the associated line source. Further, the two line sources and the two detector windows all move in synchronization in the direction of the long axis of the object being scanned and at any given position all are within a given spatial plane that is transverse to the long axis of the object. In this configuration, the system can effectively reduce the amount of cross-talk detected by a detector (e.g., cross-talk being scattered photon radiation detected by a given detector but not originating from the detector's associated line source). The configuration of this system also effectively operates in conjunction with systems employing tracking zoom regions across detector surfaces (e.g., used for cardiac studies).
摘要翻译：用于利用两个线路源和两个检测器执行发射和发射扫描会话的机构和方法，其中采用两个滑动传输检测窗口来区分传输和发射光子。传输和排放数据可以同时收集。该系统提供双传输检测窗口各自与特定的线路源相关联并且与相关联的线路源同步地移动。此外，两条线源和两个检测器窗口都沿被扫描物体的长轴方向同步移动，并且在任何给定位置都在与物体的长轴横切的给定空间平面内。在该配置中，系统可以有效地减少由检测器检测到的串扰量（例如，串扰是由给定检测器检测到但不是源于检测器的相关线路源的散射光子辐射）。该系统的配置还与跨越检测器表面的跟踪缩放区域（例如，用于心脏研究）的系统结合有效地操作。

4. 发明申请

US20090178988A1 EXPANDABLE DISPLAY SYSTEM 审中-公开
标题翻译：可扩展显示系统
公开(公告)号：US20090178988A1
公开(公告)日：2009-07-16
申请号：US12136294
申请日：2008-06-10
申请人： Thomas F. Lang
发明人： Thomas F. Lang
IPC分类号： A47F5/08 , A47F1/04
CPC分类号： A47F5/112
摘要： An expandable display system that has an expanded position for displaying products and a compact position for efficient shipment. The expandable display system includes a product tray and a graphic panel, with the graphic panel being configured to rotate around the product tray so that the expandable display system can move from the compact position to the expanded position and vice versa. In certain embodiments, the expandable display system includes a locking mechanism that prevents the graphic panel from separating from the product tray when the graphic panel rotates around the product tray as the expandable display system moves from the compact position to the expanded position.
摘要翻译：具有扩展位置的展开式显示系统，用于显示产品和紧凑的位置以实现高效运输。可扩展显示系统包括产品托盘和图形面板，图形面板被配置为围绕产品托盘旋转，使得可扩展显示系统可以从紧凑位置移动到展开位置，反之亦然。在某些实施例中，当可扩展显示系统从紧凑位置移动到展开位置时，当图形面板围绕产品托盘旋转时，可扩展显示系统包括防止图形面板从产品托盘分离的锁定机构。

5. 发明授权

US5629971A Scan speed for transmission exposure reduction in a nuclear medicine camera 失效
标题翻译：用于核医学相机的传输曝光减少的扫描速度
公开(公告)号：US5629971A
公开(公告)日：1997-05-13
申请号：US439111
申请日：1995-05-11
申请人： Steven M. Jones , Michael J. Janicki , Thomas F. Lang , John R. Liebig , Xiaohan Wang
发明人： Steven M. Jones , Michael J. Janicki , Thomas F. Lang , John R. Liebig , Xiaohan Wang
IPC分类号： G01T1/164 , G21K5/10
CPC分类号： G01T1/1615 , A61B6/037 , G01T1/1611 , G01T1/1642
摘要： A scan speed procedure and method wherein a minimum radiation exposure period is determined on an object by object basis for a transmission study. Two transmission scans are performed including a prescan followed by a second transmission scan phase. The first transmission prescan is performed using a radiation source over the object. This prescan is of a rapid and predetermined duration (Tp). A resultant count density associated with the object is then generated and examined. The portion having the smallest count density (Cm) is determined and a value (Co) representing the minimum required number of counts for transmission study is given. From the above, a transmission period (Ts) is determined by the system and the second transmission scan phase is performed for the duration Ts using a multi-pass scan phase. The computed duration Ts represents the minimum exposure duration required to collect transmission data to ensure that the count density distribution associated with the object will contain at least Cm count density over each portion of the object.
摘要翻译：一种扫描速度程序和方法，其中针对传输研究，逐对象地确定最小辐射暴露周期。执行两次传输扫描，包括预扫描，随后是第二传输扫描阶段。使用物体上的辐射源执行第一传输预扫描。该预扫描具有快速和预定的持续时间（Tp）。然后生成并检查与对象相关联的合成计数密度。确定具有最小计数密度（Cm）的部分，并且给出表示用于传输研究的最小所需计数数量的值（Co）。从上述可以看出，系统确定了传输周期（Ts），并且使用多遍扫描阶段对持续时间Ts执行第二传输扫描阶段。所计算的持续时间Ts表示收集传输数据所需的最小曝光持续时间，以确保与对象相关联的计数密度分布在对象的每个部分上至少包含Cm计数密度。

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