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公开(公告)号：US10679385B1
公开(公告)日：2020-06-09
申请号：US16221606
申请日：2018-12-17
Applicant: General Electric Company
Inventor： Brian David Yanoff , Mingye Wu , Lin Fu , Peter Michael Edic , Xue Rui , Geng Fu , Yannan Jin , Fredrik Gronberg
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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公开(公告)号：US20180317869A1
公开(公告)日：2018-11-08
申请号：US15589412
申请日：2017-05-08
Applicant: General Electric Company
Inventor： Xue Rui , Geng Fu , Yannan Jin , Jianjun Guo , Peter Michael Edic , Brian David Yanoff
Abstract: The present approach relates to the use of detector elements (i.e., reference detector pixels) positioned under septa of an anti-scatter collimator. Signals detected by the reference detector pixels may be used to correct for charging-sharing events with adjacent pixels and/or to characterize or correct for focal spot misalignment either in real time or as a calibration step.
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公开(公告)号：US20180192977A1
公开(公告)日：2018-07-12
申请号：US15400798
申请日：2017-01-06
Applicant: General Electric Company
Inventor： Yannan Jin , Peter Michael Edic , Xue Rui , Geng Fu
CPC classification number: A61B6/4241 , A61B6/032 , A61B6/481 , A61B6/482 , A61B6/5205 , A61B6/5217 , A61B6/5282 , A61B6/585 , G01T1/2985 , G01T1/36 , G01V5/0016 , G06T11/006 , G06T2211/408
Abstract: The present approaches relates to the use of silicon-based energy-discriminating, photon-counting detectors, such as for use in X-ray based imaging including computed tomography. The described approaches address the resolution and classification of X-ray photons affected by Compton scatter, which may be detected as having energy levels below their proper level due to collision or deflection events.
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公开(公告)号：US20170212250A1
公开(公告)日：2017-07-27
申请号：US15004214
申请日：2016-01-22
Applicant: General Electric Company
Inventor： Yannan Jin , Geng Fu , Peter Michael Edic , Brian David Yanoff , Jianjun Guo
Abstract: A detector is described having readout electronics integrated in the photodetector layer. The detector may be configured to acquire both energy-integrated and photon-counting data. In one implementation, the detector is also configured with control logic to select between the jointly generated photon-counting and energy-integrated data.
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公开(公告)号：US20150272522A1
公开(公告)日：2015-10-01
申请号：US14230774
申请日：2014-03-31
Applicant: GENERAL ELECTRIC COMPANY
Inventor： Vance Scott Robinson , Ertugrul Berkcan , Peter Michael Edic , Sergiy Zalyubovsky , Marco Francesco Aimi , Yizhen Lin , Yannan Jin , Robert Franklin Senzig
CPC classification number: A61B6/4035 , A61B6/032 , A61B6/035 , A61B6/482 , G21K1/10
Abstract: X-ray imaging systems are provided that include an X-ray source and an X-ray detector. A filtering device is positioned between the X-ray source and the X-ray detector and includes one or more micro-filters each adapted to transition between an X-ray filtering position and an X-ray non-filtering position. A controller is programmed to control operation of the micro-filters.
Abstract translation: 提供包括X射线源和X射线检测器的X射线成像系统。 过滤装置位于X射线源和X射线检测器之间，并且包括一个或多个微滤器，每个微滤器适于在X射线滤波位置和X射线非滤波位置之间转换。 控制器被编程以控制微滤器的操作。
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Patent Agency Ranking
公开(公告)号：US20140005535A1
公开(公告)日：2014-01-02
申请号：US13842104
申请日：2013-05-06
Applicant: University of Michigan , General Electric Company
Inventor： Peter Michael Edic , Robert Franklin Senzig , Kai Erik Thomenius , Steven James Gray , David Allen Langan , Prem Venugopal , Jeffrey Brian Fowlkes
IPC: A61B5/026
CPC classification number: A61B5/026 , A61B5/02007 , A61B6/032 , A61B6/4078 , A61B6/4085 , A61B6/4441 , A61B6/481 , A61B6/503 , A61B6/504 , A61B6/507 , A61B6/5217 , A61B6/5247 , A61B6/5288 , A61B8/06 , A61B8/0883 , A61B8/0891 , A61B8/488 , A61B8/5223 , A61B8/5261 , A61B8/5284 , G06F17/5009 , G06F2217/16 , G16H50/50
Abstract: Approaches for assessing hemodynamic characteristics for an organ of interest are related. In one implementation, a fluid dynamics model may be provided with data derived from an anatomic imaging modality and blood flow information derived by ultrasound to derive the desired hemodynamic characteristics. In one such implementation, a fractional flow reserve is estimated.
Abstract translation: 评估感兴趣器官血液动力学特征的方法是相关的。 在一个实施方案中，可以向流体动力学模型提供从解剖成像模态导出的数据和由超声导出的血流信息以导出所需的血液动力学特征。 在一个这样的实现中，估计分数流量储备。
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公开(公告)号：US11054532B2
公开(公告)日：2021-07-06
申请号：US16279328
申请日：2019-02-19
Applicant: Prismatic Sensors AB , General Electric Company
Inventor： Torbjörn Hjärn , Brian David Yanoff , Brian Breuer , Brian Joseph Graves , Cheng Xu , Biju Jacob , Peter Michael Edic , Gregory Scott Zeman
IPC: G01T1/24
Abstract: There is provided an x-ray detector having a number of x-ray detector sub-modules. Each detector sub-module is an edge-on detector sub-module having an array of detector elements extending in at least two directions, wherein one of the directions has a component in the direction of incoming x-rays. The detector sub-modules are stacked one after the other and/or arranged side-by-side. For at least part of the detector sub-modules, the detector sub-modules are arranged for providing a gap between adjacent detector sub-modules, where at least part of the gap is not directed linearly towards the x-ray focal point of an x-ray source.
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公开(公告)号：US10964017B2
公开(公告)日：2021-03-30
申请号：US16192551
申请日：2018-11-15
Applicant: General Electric Company
Inventor： Jed Douglas Pack , Peter Michael Edic , Xin Wang , Xia Li , Prem Venugopal , James Vradenburg Miller
Abstract: The present disclosure relates to training one or more neural networks for vascular vessel assessment using synthetic image data for which ground-truth data is known. In certain implementations, the synthetic image data may be based in part, or derived from, clinical image data for which ground-truth data is not known or available. Neural networks trained in this manner may be used to perform one or more of vessel segmentation, decalcification, Hounsfield unit scoring, and/or estimation of a hemodynamic parameter.
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公开(公告)号：US10827992B2
公开(公告)日：2020-11-10
申请号：US16511218
申请日：2019-07-15
Applicant: GENERAL ELECTRIC COMPANY
Inventor： Yannan Jin , Peter Michael Edic , Xue Rui , Geng Fu
Abstract: The present approaches relates to the use of silicon-based energy-discriminating, photon-counting detectors, such as for use in X-ray based imaging including computed tomography. The described approaches address the resolution and classification of X-ray photons affected by Compton scatter, which may be detected as having energy levels below their proper level due to collision or deflection events.
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公开(公告)号：US10213172B2
公开(公告)日：2019-02-26
申请号：US15044787
申请日：2016-02-16
Applicant: GENERAL ELECTRIC COMPANY
Inventor： Yannan Jin , Bruno Kristiaan Bernard De Man , Peter Michael Edic , Paul Francis Fitzgerald , Xue Rui , Yangyang Yao , Zhye Yin , Uwe Wiedmann
Abstract: An imaging method includes executing a low-dose preparatory scan to an object by applying tube voltages and tube currents in an x-ray source, and generating a first image of the object corresponding to the low-dose preparatory scan. The method further includes generating image quality estimates and dose estimates view by view at least based on the first image. The method includes optimizing the tube voltages and the tube currents to generate optimal profiles for the tube voltage and the tube current. At least one of the optimal profiles for the tube voltage and the tube current is generated based on the image quality estimates and the dose estimates. The method includes executing an acquisition scan by applying the tube voltages and the tube currents based on the optimal profiles and generating a second image of the object corresponding to the acquisition scan. An imaging system is also provided.
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