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1. 发明授权

EP3427667B1 TIME CALIBRATION IN PET DEVICE 有权转让
公开(公告)号：EP3427667B1
公开(公告)日：2020-10-07
申请号：EP18182480.6
申请日：2018-07-09
申请人： Neusoft Medical Systems Co., Ltd.
发明人： WANG, Xi , ZHAO, Jian , WU, Guocheng , XU, Baowei , LIANG, Guodong
IPC分类号： A61B6/03 , A61B6/00 , G01T1/172 , G01T1/20 , G01T1/29 , G01T1/36 , G01T7/00

2. 发明授权

EP1529226B1 MISSION-SPECIFIC POSITRON EMISSION TOMOGRAPHY 有权
标题翻译：特派团特定正电子发射断层扫描装置
公开(公告)号：EP1529226B1
公开(公告)日：2011-11-09
申请号：EP03785100.3
申请日：2003-08-11
申请人： Naviscan Pet Systems, Inc.
发明人： PETER, William , WEINBERG, Irving, N. , YARNALL, Stephen, T.
IPC分类号： G01T1/29 , G01T1/172 , A61B6/03
CPC分类号： G01T1/2985 , A61B6/037 , A61B6/508 , G01T1/1642
摘要： A handheld gamma camera or PET system with a disposable detector head is provided. This system includes a configuration of a gamma camera or PET scanner in which optical fibers or bundles of optical fibers are coupled to a scintillator or array of scintillators and the other end of the optical fibers or bundles of optical fibers are coupled to a light-sensitive camera, such as a photomultiplier. The system may further include a mechanism to rapidly couple and/or decouple the optical fiber or fibers from the light sensitive camera or from the scintillator or array of scintillators so that the detector can be disposed of or sterilized without damaging the lightsensitive camera. A method for image reconstruction and image simulation is also provided. The method includes an application of deterministic sampling using Gaussian quadrature parameters to construct a transition matrix for purposes of image reconstruction.

3. 发明授权

EP1116047B1 PIXELATED PHOTON DETECTOR 有权
标题翻译：光子探测器中的像素矩阵的形式
公开(公告)号：EP1116047B1
公开(公告)日：2006-07-12
申请号：EP98946688.3
申请日：1998-09-24
申请人： Elgems Ltd.
发明人： WAINER, Naor , HEFETZ, Yaron , AMRAMI, Aharon , PANSKY, Amir
IPC分类号： G01T1/172 , G01T1/24 , G01T1/29
CPC分类号： G01T1/2985 , G01T1/172 , G01T1/241 , G01T1/242 , G01T1/244 , G01T1/2928
摘要： A pixelated detector for detecting photons is provided comprising: a semiconductor crystal; a cathode electrode on a first surface of the crystal; an anode comprising a plurality of anode pixel electrodes on a second surface of the crystal; and a signal generator that receives signals from at least one electrode of the electrodes. When a photon is incident on the detector the signal generator generates a timing signal responsive to signals induced on the at least one electrode by electrons and holes produced by the incident photon and the at least one electrode has a size larger than the size of a single anode pixel electrode.

4. 发明公开

EP1325355A2 SPECT GAMMA CAMERA 有权
标题翻译： SPECT伽玛照相机
公开(公告)号：EP1325355A2
公开(公告)日：2003-07-09
申请号：EP01961064.1
申请日：2001-08-08
申请人： U.C.G. Technologies Ltd.
发明人： SHWARTZ, Shoulamit, C. , OHANA, Israel
IPC分类号： G01T1/172
CPC分类号： G01T1/1644 , A61B6/037
摘要： A method and apparatus of obtaining and reconstructing an image of a portion of a body, administered by a radiopharmaceutical substance, by using Single-photon emission computerized tomography (SPECT) for determination of functional information thereon. The method comprises: acquiring gamma ray photons (3) emitted from said portion by means of a detector (2) capable of converting the photons into electric signals, the detector having at least one crystal (6) and allowing said gamma rays having incident angles essentially exceeding 5 degrees and, preferably, exceeding 10 degrees to be detected; processing said electric signals by a position logic circuitry (7) and thereby transforming them into data indicative of positions on said photon detector crystal(6), where the photons (3) have impinged the detector (2); and reconstructing an image of a spatial distribution of the pharmaceutical substance within the portion of the body (5) by processing said data and taking into consideration weight values which are functions of angles and, possibly, distances between different elements of the portion (4) of the body (5) and corresponding elements of this position's projection on the detector (2).

5. 发明公开

EP3963370A1 SYSTEM AND METHOD FOR CHARGE SHARING COMPENSATION FOR X-RAY PHOTON COUNTING DETECTORS 无效
公开(公告)号：EP3963370A1
公开(公告)日：2022-03-09
申请号：EP20799469.0
申请日：2020-05-01
申请人： THE REGENTS OF THE UNIVERSITY OF CALIFORNIA
发明人： HSIEH, Scott S.
IPC分类号： G01T1/172 , G01T1/36

6. 发明公开

EP3335060A1 VERFAHREN UND VORRICHTUNG ZUR DETEKTION VON SIGNALPULSEN 有权
公开(公告)号：EP3335060A1
公开(公告)日：2018-06-20
申请号：EP16756648.8
申请日：2016-08-12
申请人： AVL List GmbH
发明人： BRUNNHOFER, Georg
IPC分类号： G01T1/17 , G01T1/172 , G01N15/00 , H03K5/1534 , G01R19/00
CPC分类号： H03K5/1534 , G01N15/065 , G01N2015/0046 , G01R19/0053 , G01T1/17 , G01T1/172
摘要： The invention relates to a device for detecting signal pulses (2) in an analog measuring signal (1) of a particle counter. Said device comprises an AD converter (6) and an evaluation unit (10) that includes a slope evaluation unit (16) which determines signal pulses (2) in real time by analyzing the slopes between adjacent sampling points (8) in the digital data stream (7) of the AD converter (6).

7. 发明授权

EP2113791B1 Sodium iodide sctinitllator with flat plastic scintillator for Compton suppression 失效
标题翻译：碘化钠闪烁体具有平坦塑料闪烁体对于康普顿抑
公开(公告)号：EP2113791B1
公开(公告)日：2016-08-31
申请号：EP09156160.5
申请日：2009-03-25
申请人： Nuctech Company Limited
发明人： Peng, Hua , Zhao, Kun , He, Yu , Ruan, Ming
IPC分类号： G01T1/172
CPC分类号： G01T1/2008 , G01T1/172

8. 发明公开

EP2573588A4 POSITRON CT DEVICE AND TIMING CORRECTION METHOD 失效
标题翻译： POSTRENEN-COMPUTERTOMOGRAF UND TAKTKORREKTURVERFAHREN
公开(公告)号：EP2573588A4
公开(公告)日：2015-10-14
申请号：EP10851704
申请日：2010-05-18
申请人： SHIMADZU CORP
发明人： TSUDA TOMOAKI , SATO MASANOBU
IPC分类号： G01T1/161 , G01T1/172
CPC分类号： A61B6/037 , A61B6/4266 , A61B6/485 , G01T1/1647 , G01T1/172 , G01T1/2018 , G01T1/208 , G01T1/2985
摘要： A PET apparatus and a timing correction method of this invention select two target gamma-ray detectors 3 which count coincidences, select a reference detector S which is one detector out of the two selected gamma-ray detectors 3, select a gamma-ray detector 3 different from the other, opposite detector O, and when repeating the selection, make a time lag histogram concerning two gamma-ray detectors 3 selected in the past a reference, and correct a time lag histogram concerning gamma-ray detectors 3 selected this time based on the reference. By repeating an operation to make the corrected time lag histogram concerning the two gamma-ray detectors 3 a new reference, an optimal time lag histogram can be obtained without repeating many measurements and computations.
摘要翻译：本发明的PET装置和定时校正方法选择两个计数重合的目标γ射线检测器3，选择作为两个所选伽马射线检测器3中的一个检测器的参考检测器S，选择伽马射线检测器3 与另一个相反的检测器O不同，并且当重复该选择时，对于在过去的参考中选择的两个伽马射线探测器3进行时间延迟直方图，并且校正关于基于此时间选择的伽马射线探测器3的时滞直方图参考。通过重复使关于两个伽马射线检测器3的校正时间延迟直方图的操作成为新的参考，可以在不重复许多测量和计算的情况下获得最佳时滞直方图。

9. 发明公开

EP2759850A1 TOMOGRAPHY DEVICE 审中-公开
标题翻译： TOMOGRAPHIEVORRICHTUNG
公开(公告)号：EP2759850A1
公开(公告)日：2014-07-30
申请号：EP11872804.7
申请日：2011-09-22
申请人： Shimadzu Corporation
发明人： NAKAZAWA, Masayuki , OHI, Junichi , FURUMIYA, Tetsuo
IPC分类号： G01T1/161 , G01T1/172
CPC分类号： G01T1/164 , A61B6/037 , G01T1/2006 , G01T1/2985
摘要： The disclosure has one object to provide a radiation tomography apparatus of a low price that facilitates a design change of a detector ring to suppress costs of development. The radiation tomography apparatus according to the disclosure includes a plurality of modules configured to receive detected data from different radiation detectors. Then, the modules each send and receive the detected data to and from one another, thereby sharing the detected data and counting the number of coincidence events. That is, when manufacturing radiation tomography apparatus, merely wiring the coincidence modules achieves implementation of the coincidence unit. This allows manufacturing the radiation tomography apparatus without new development of a substrate for performing coincidence. Consequently, the radiation tomography apparatus of a low price can be provided with suppressed costs of the development.
摘要翻译：本发明的一个目的是提供一种低价格的放射线断层摄影装置，其有助于检测器环的设计改变以抑制开发成本。根据本公开的辐射断层摄影装置包括被配置为从不同辐射检测器接收检测到的数据的多个模块。然后，各模块各自发送并接收检测到的数据，从而共享检测到的数据并计数重合事件的数量。也就是说，当制造放射线断层摄影装置时，仅仅配合符合模块实现了重合单元的实现。这允许制造放射线断层摄影装置，而不需要用于执行重合的基板的新开发。因此，可以提供低价格的放射线断层摄影装置抑制发展的成本。

10. 发明公开

EP2166376A2 True Coincidence Summing Correction and Total Efficiency Computation for Radionuclide Spectroscopy Analysis 审中-公开
标题翻译： Summierungskorrektur为Radionuklidspektroskopieanalyse总有效率的真正的巧合，计算
公开(公告)号：EP2166376A2
公开(公告)日：2010-03-24
申请号：EP09170770.3
申请日：2009-09-18
申请人： CANBERRA INDUSTRIES, INC.
发明人： Zhu, Hongguo , Venkataraman, Ramkumar , Mueller, Wilhelm , Lamontagne, Joseph , Bronson, Frazier
IPC分类号： G01T1/172
CPC分类号： G01T1/172 , G01T1/36
摘要： A method, system, and software for calculating the true coincidence summing effects for radionuclide spectroscopy analysis. A set of equations which can be implemented with a stored computer program performs calculations to correct the spectroscopic analysis data for gamma-gamma coincidence events, gamma-X-ray coincidence events, as well as gamma-annihilation photon coincidence events. The net gamma-ray, KX-ray and annihilation photon summing-out probabilities for the analytic gamma-ray is the total summing-out probability from all gamma-ray summing-out chains subtracted by the total summing-out probability from all gamma-ray sub-cascade chains involving the analytic gamma-ray. A total efficiency calculation is performed to eliminate the need for using radioactive sources to create summing specific calibration measurements and for increased accuracy.
摘要翻译：一种方法，系统和软件计算的真符合相加放射性核素光谱分析效果。一组方程可以与所存储的程序计算机来实现执行计算以校正伽马-γ符合事件，γ透视符合事件，以及伽马光子湮灭符合事件光谱分析数据。为分析伽玛射线的净伽玛射线，KX射线和湮灭光子总结出的概率是所有的伽玛射线总总结出概率总结出所有的γ-由总总结出概率中减去链光线子级联链涉及的解析伽玛射线。总共效率计算被执行以消除使用放射源来创建特定求和校准测量和用于提高精度的需要。

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