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    SOLID STATE PHOTOMULTIPLIER WITH IMPROVED PULSE SHAPE READOUT
    1.
    发明申请
    SOLID STATE PHOTOMULTIPLIER WITH IMPROVED PULSE SHAPE READOUT 审中-公开
    具有改进的脉冲形状读取的固态光电二极管

    公开(公告)号：WO2016048470A1

    公开(公告)日：2016-03-31

    申请号：PCT/US2015/045007

    申请日：2015-08-13

    Applicant: GENERAL ELECTRIC COMPANY

    Inventor： DOLINSKY, Sergei ,  GUO, Jianjun ,  MCDANIEL, David Leo ,  MANJESHWAR, Ravindra Mohan ,  FU, Geng

    IPC: H04N5/3745 ,  H04N5/365

    CPC classification number: H04N5/37457 ,  H04N5/3653

    Abstract: Embodiments of a solid state photomultiplier are provided herein. In some embodiments, a solid state photomultiplier may include a plurality of pixels, wherein each pixel of the plurality of pixels comprises a plurality of subpixels; and a first set of buffer amplifiers, wherein each buffer amplifier of the first set of buffer amplifiers is respectively coupled to a subpixel of the plurality of subpixels.

    Abstract translation: 本文提供了固态光电倍增管的实施例。 在一些实施例中，固态光电倍增管可以包括多个像素，其中多个像素中的每个像素包括多个子像素; 以及第一组缓冲放大器，其中第一组缓冲放大器的每个缓冲放大器分别耦合到多个子像素的子像素。

    SPECTRAL CALIBRATION OF SPECTRAL COMPUTED TOMOGRAPHY (CT)
    3.
    发明申请
    SPECTRAL CALIBRATION OF SPECTRAL COMPUTED TOMOGRAPHY (CT) 审中-公开
    光谱计算机断层显像（CT）的光谱校准

    公开(公告)号：WO2018057338A1

    公开(公告)日：2018-03-29

    申请号：PCT/US2017/051096

    申请日：2017-09-12

    Applicant: GENERAL ELECTRIC COMPANY

    Inventor： JIN, Yannan ,  FU, Geng ,  EDIC, Peter M. ,  GAO, Hewei

    IPC: A61B6/00 ,  H04N5/365 ,  G01T1/36 ,  G01V5/00

    Abstract: There is set forth herein a method including performing with an X-ray detector array of a CT imaging system one or more calibration scans, wherein the one or more calibration scans include obtaining for each element of the first through Nth elements of the X-ray detector array one or more calibration measurements; and updating a spectral response model for each element of the first through Nth elements using the one or more calibration measurements. In another aspect, a CT imaging system can perform imaging, e.g. including material decomposition (MD) imaging, using updated spectral response models for elements of an X-ray detector array. The spectral response models can be updated using a calibration process so that different elements of an X-ray detector array have different spectral response models.

    Abstract translation: 这里阐述了一种方法，包括利用CT成像系统的X射线探测器阵列执行一个或多个校准扫描，其中所述一个或多个校准扫描包括针对第一个 通过X射线探测器阵列的第N个元素进行一次或多次校准测量; 以及使用所述一个或多个校准测量来更新所述第一元素至第N元素的每个元素的光谱响应模型。 在另一方面，CT成像系统可以执行成像，例如， 包括材料分解（MD）成像，使用更新的光谱响应模型用于X射线探测器阵列的元素。 光谱响应模型可以使用校准过程进行更新，以便X射线探测器阵列的不同元素具有不同的光谱响应模型。

    COINCIDENCE-ENABLING PHOTON-COUNTING DETECTOR
    6.
    发明申请
    COINCIDENCE-ENABLING PHOTON-COUNTING DETECTOR 审中-公开

    公开(公告)号：WO2018144127A1

    公开(公告)日：2018-08-09

    申请号：PCT/US2017/064641

    申请日：2017-12-05

    Applicant: GENERAL ELECTRIC COMPANY

    Inventor： FU, Geng ,  JIN, Yannan ,  EDIC, Peter Michael ,  CHEN, Feng

    IPC: G01T1/17 ,  G01T1/24 ,  G01T1/29

    Abstract: The present approach relates to the use of energy-resolved, photon-counting detectors, such as CZT- or CdTe-based detectors, to acquire spectral information that is not available with conventional energy-integrating detectors. In certain embodiments, the present approach discussed reduces or eliminates spectral contamination incurred by transient signals in neighboring pixels in designs employing coincidence logic and shaping amplifiers with short shaping times.

    SYSTEM AND METHOD FOR STATISTICAL ITERATIVE RECONSTRUCTION AND MATERIAL DECOMPOSITION
    9.
    发明公开
    SYSTEM AND METHOD FOR STATISTICAL ITERATIVE RECONSTRUCTION AND MATERIAL DECOMPOSITION 审中-公开

    公开(公告)号：EP3671648A1

    公开(公告)日：2020-06-24

    申请号：EP19216339.2

    申请日：2019-12-13

    Applicant: General Electric Company

    Inventor： YANOFF, Brian David ,  WU, Mingye ,  FU, Lin ,  EDIC, Peter Michael ,  RUI, Xue ,  FU, Geng ,  JIN, Yannan ,  GRONBERG, Fredrik

    IPC: G06T11/00

    Abstract: A method for imaging an object to be reconstructed includes acquiring projection data corresponding to the object. Furthermore, the method includes generating a measured sinogram based on the acquired projection data and formulating a forward model, where the forward model is representative of a characteristic of the imaging system. In addition, the method includes generating an estimated sinogram based on an estimated image of the object and the forward model and formulating a statistical model based on at least one of pile-up characteristics and dead time characteristics of a detector of the imaging system. Moreover, the method includes determining an update corresponding to the estimated image based on the statistical model, the measured sinogram, and the estimated sinogram and updating the estimated image based on the determined update to generate an updated image of the object. Additionally, the method includes outputting a final image of the object.

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