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    ITERATIVE RECONSTRUCTION OF PROJECTION DATA
    12.
    发明申请
    ITERATIVE RECONSTRUCTION OF PROJECTION DATA 有权
    投影数据的迭代重建

    公开(公告)号：US20160171723A1

    公开(公告)日：2016-06-16

    申请号：US14571086

    申请日：2014-12-15

    Applicant: General Electric Company

    Inventor： Bernhard Erich Hermann Claus ,  David Allen Langan ,  Omar Al Assad

    IPC: G06T11/00 ,  G06T7/00 ,  A61B6/03

    CPC classification number: A61B6/032 ,  A61B6/4441 ,  A61B6/481 ,  A61B6/487 ,  A61B6/504 ,  A61B6/5205 ,  G06T11/006 ,  G06T2211/424

    Abstract: The present disclosure relates to the iterative reconstruction of projection data. In certain embodiments, the iterative reconstruction is a multi-stage iterative reconstruction in which different feature are selectively emphasized at different stages. Selective emphasis at different stages may be accomplished by differentially handling two or more decompositions of an input image at certain iterations and/or by differently processing certain features with respect to each stage.

    Abstract translation: 本公开涉及投影数据的迭代重建。 在某些实施例中，迭代重建是多阶段迭代重建，其中在不同阶段选择性地强调不同的特征。 在不同阶段的选择性强调可以通过在某些迭代处差分地处理输入图像的两个或多个分解和/或通过不同地处理关于每个阶段的某些特征来实现。

    GENERATION OF MASK AND CONTRAST IMAGE DATA IN A CONTINUOUS ACQUISITION
    14.
    发明申请
    GENERATION OF MASK AND CONTRAST IMAGE DATA IN A CONTINUOUS ACQUISITION 有权
    在连续收购中产生掩蔽和对比图像数据

    公开(公告)号：US20160029987A1

    公开(公告)日：2016-02-04

    申请号：US14448842

    申请日：2014-07-31

    Applicant: GENERAL ELECTRIC COMPANY

    Inventor： David Allen Langan ,  Bernhard Erich Hermann Claus

    IPC: A61B6/00 ,  A61B6/03

    CPC classification number: A61B6/486 ,  A61B6/025 ,  A61B6/032 ,  A61B6/4014 ,  A61B6/481 ,  A61B6/504 ,  A61B6/5205

    Abstract: The present disclosure relates various approaches by which mask and contrast projection data may be acquired using a continuous projection acquisition process, without an interruption in acquisition or resetting of the system between the acquisition of the mask projection data and the contrast projection data. In certain implementations, the approaches described herein may be employed with a single-plane or multi-plane tomosynthesis system.

    Abstract translation: 本公开涉及通过使用连续投影获取处理可以获取掩模和对比度投影数据的各种方法，而不会在获取掩模投影数据和对比度投影数据之间采集或重置系统中断。 在某些实施方式中，本文描述的方法可以与单平面或多平面断层合成系统一起使用。

    C-ARM SYSTEM AND C-ARM SPIN ACQUISITION TRAJECTORIES FOR DYNAMIC IMAGING AND IMPROVED IMAGE QUALITY AND METHOD OF USE
    15.
    发明申请
    C-ARM SYSTEM AND C-ARM SPIN ACQUISITION TRAJECTORIES FOR DYNAMIC IMAGING AND IMPROVED IMAGE QUALITY AND METHOD OF USE 有权
    用于动态成像和改进图像质量的C-ARM系统和C-ARM旋转采集TRAJECTORIES和使用方法

    公开(公告)号：US20150374319A1

    公开(公告)日：2015-12-31

    申请号：US14319309

    申请日：2014-06-30

    Applicant: General Electric Company

    Inventor： Bernhard Erich Hermann Claus ,  David Allen Langan ,  Omar Al Assad

    IPC: A61B6/00 ,  A61B6/02

    CPC classification number: A61B6/4441 ,  A61B6/027 ,  A61B6/032 ,  A61B6/486 ,  A61B6/507

    Abstract: C-arm systems and method for making and using continuous C-arm spin acquisition trajectories for dynamic imaging and improved image quality are described. In such systems and methods, a C-arm gantry, coupled to a C-arm support assembly, is adapted to retain an x-ray source and an x-ray detector. The C-arm gantry is selectively rotatable relative to the C-arm support assembly about both a C-arm axis and a pivot-axis to displace the x-ray source and the x-ray detector along a continuous C-arm spin trajectory. The C-arm system is adapted for continuous three-dimensional acquisition of data along the continuous C-arm spin trajectory including a plurality of shorts arcs and a plurality of long arcs. The C-arm system is adapted for continuous three-dimensional acquisition of data along the continuous C-arm spin trajectory to provide continuous three-dimensional imaging of dynamic processes.

    Abstract translation: 描述了用于制造和使用连续的C臂旋转获取轨迹的C臂系统和用于动态成像和改进的图像质量的方法。 在这种系统和方法中，耦合到C臂支撑组件的C形臂架适于保持x射线源和x射线检测器。 C形臂架可相对于C形臂支撑组件围绕C形臂和枢转轴线选择性地旋转，以沿着连续的C形臂自旋轨迹移位X射线源和X射线探测器。 C臂系统适于沿着包括多个短弧和多个长弧的连续C臂自旋轨迹的数据的连续三维采集。 C臂系统适用于沿着连续C臂自旋轨迹的连续三维数据采集，以提供动态过程的连续三维成像。

    ROBUST ARTIFACT REDUCTION IN IMAGE RECONSTRUCTION
    16.
    发明申请
    ROBUST ARTIFACT REDUCTION IN IMAGE RECONSTRUCTION 有权
    图像重构中的鲁棒裁员减少

    公开(公告)号：US20150029178A1

    公开(公告)日：2015-01-29

    申请号：US13952444

    申请日：2013-07-26

    Applicant: General Electric Company

    Inventor： Bernhard Erich Hermann Claus ,  David Allen Langan ,  Taylor Robert Braun-Jones

    IPC: G06T7/00

    CPC classification number: G06T11/005 ,  A61B6/032 ,  A61B6/5258 ,  G06T2200/04

    Abstract: Approaches are disclosed for removing or reducing metal artifacts in reconstructed images. The approaches include creating a metal mask in the projection domain, interpolating data within the metal mask, and perform a reconstruction using the interpolated data. In certain embodiments the metal structure is separately reconstructed and combined with the reconstructed volume.

    Abstract translation: 公开了用于去除或减少重建图像中的金属伪影的方法。 这些方法包括在投影域中创建金属掩模，在金属掩模内插入数据，并使用内插数据执行重建。 在某些实施例中，金属结构被分开重建并与重建的体积组合。

    DATA-BASED SCAN GATING
    17.
    发明申请
    DATA-BASED SCAN GATING 审中-公开

    公开(公告)号：US20200163639A1

    公开(公告)日：2020-05-28

    申请号：US16200175

    申请日：2018-11-26

    Applicant: General Electric Company

    Inventor： Bruno Kristiaan Bernard De Man ,  Eri Haneda ,  Jed Douglas Pack ,  Bernhard Erich Hermann Claus

    IPC: A61B6/00 ,  G06T7/20 ,  G06N3/08

    Abstract: In accordance with the present disclosure, the present technique finds a diagnostic scan timing for a non-static object (e.g., a heart or other dynamic object undergoing motion) from raw scan data, as opposed to reconstructed image data. To find the scan timing, a monitoring scan of a patient's heart is performed. In the monitoring scan, the patient dose may be limited or minimized. As the projection data is acquired during such a monitoring scan, the projection data may be subjected to sinogram analysis in a concurrent or real-time manner to determine when to start (or trigger) the diagnostic scan.

    TOMOGRAPHIC IMAGING FOR TIME-SENSITIVE APPLICATIONS
    18.
    发明申请
    TOMOGRAPHIC IMAGING FOR TIME-SENSITIVE APPLICATIONS 审中-公开
    用于时间敏感应用的TOMOGRAPHIC成像

    公开(公告)号：US20170039734A1

    公开(公告)日：2017-02-09

    申请号：US14819192

    申请日：2015-08-05

    Applicant: GENERAL ELECTRIC COMPANY

    Inventor： David Allen Langan ,  Bernhard Erich Hermann Claus ,  Gregoire Avignon

    IPC: G06T11/00 ,  A61B6/00 ,  A61B6/03

    Abstract: Disclosed aspects relate to the acquisition and processing of projection data using temporal characteristics of the imaged volume, such as the uptake and clearance of a contrast agent within the volume. Such temporal aspects may be used in the acquisition process, such as to differentially acquire images based on the propagation of the contrast agent. In addition, such temporal aspects may be used in the processing of projection data to generate differential projections (e.g., first or second order subtraction projections), compound projections synthesized using the absolute or relative maximum opacity values observed over time for a region of interest, or interpolated projections synthesized using observed opacity values at known or fixed time intervals and a derived peak opacity time.

    Abstract translation: 公开的方面涉及使用成像体积的时间特征（例如体积内的造影剂的摄取和清除）来获取和处理投影数据。 这样的时间方面可以用于采集过程中，例如基于造影剂的传播来差异地获取图像。 此外，这些时间方面可以用于投影数据的处理以产生差分投影（例如，一阶或二阶减法投影），使用随时间观察感兴趣区域的绝对或相对最大不透明度值合成的复合投影， 或使用在已知或固定时间间隔处观察到的不透明度值合成的内插投影和衍生的峰值不透明度时间。

    Systems and methods for imaging dynamic processes
    19.
    发明授权
    Systems and methods for imaging dynamic processes 有权
    用于动态过程成像的系统和方法

    公开(公告)号：US09468409B2

    公开(公告)日：2016-10-18

    申请号：US14090677

    申请日：2013-11-26

    Applicant: General Electric Company

    Inventor： Bernhard Erich Hermann Claus ,  Jeffrey Wayne Eberhard ,  David Allen Langan ,  Kedar Bhalchandra Khare

    IPC: A61B6/03 ,  A61B6/02 ,  A61B6/00

    CPC classification number: A61B6/025 ,  A61B6/027 ,  A61B6/4441 ,  A61B6/542

    Abstract: Systems, methods and non-transitory computer readable media for imaging. The system includes one or more radiation sources and detectors configured to transmit x-ray radiation towards a subject for imaging a dynamic process in a ROI of the subject and to acquire projection data corresponding to the ROI, respectively. The system also includes a computing device operatively coupled to one or more of the radiation sources and the detectors. The computing device is configured to provide control signals for performing one or more reference scans for acquiring reference data from a plurality of angular positions around the subject and for performing one or more tomosynthesis scans using one or more tomosynthesis trajectories for acquiring tomosynthesis data following the onset of the dynamic process. Additionally, the computing device is configured to reconstruct one or more images representative of the dynamic process using the reference data and/or the tomosynthesis data.

    Abstract translation: 用于成像的系统，方法和非暂时性计算机可读介质。 该系统包括一个或多个辐射源和检测器，其被配置为朝向对象发射X射线辐射，用于对被摄体的ROI中的动态过程成像，并分别获取与ROI相对应的投影数据。 该系统还包括可操作地耦合到一个或多个辐射源和检测器的计算设备。 计算设备被配置为提供用于执行一个或多个参考扫描的控制信号，用于从围绕对象的多个角位置获取参考数据，并且使用一个或多个用于获取发生后的断层合成数据的层析合成轨迹进行一次或多次层析合成扫描 的动态过程。 另外，计算设备被配置为使用参考数据和/或断层合成数据重建表示动态过程的一个或多个图像。

    SYSTEM AND METHOD FOR PROCESSING NAVIGATIONAL SENSOR DATA
    20.
    发明申请
    SYSTEM AND METHOD FOR PROCESSING NAVIGATIONAL SENSOR DATA 审中-公开
    用于处理导航传感器数据的系统和方法

    公开(公告)号：US20150305823A1

    公开(公告)日：2015-10-29

    申请号：US14262415

    申请日：2014-04-25

    Applicant: General Electric Company

    Inventor： Bernhard Erich Hermann Claus

    IPC: A61B19/00 ,  A61B5/06 ,  G01B7/00

    CPC classification number: A61B5/061 ,  A61B34/20 ,  A61B2034/2051 ,  A61B2090/376 ,  G01B7/003

    Abstract: Aspects of the present disclosure relate to approaches for determining position and orientation of a tracked tool in a medical navigational context. In one embodiment, the position of a surgical or interventional tool may be determined using the orientation or field direction data such that the determination is independent of field strength or magnitude. Feedback may be provided to a user based on these determinations. In certain embodiments, the navigational system may be auto-calibrated using position information determined independent of field strength or magnitude.

    Abstract translation: 本公开的方面涉及用于确定在医疗导航上下文中跟踪的工具的位置和方向的方法。 在一个实施例中，可以使用取向或场方向数据来确定手术或介入工具的位置，使得该确定与场强或幅度无关。 基于这些确定可以向用户提供反馈。 在某些实施例中，可以使用独立于场强或幅度确定的位置信息来自动校准导航系统。

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