JP2012081279A5 - - Google Patents

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JP2012081279A5
JP2012081279A5 JP2011226201A JP2011226201A JP2012081279A5 JP 2012081279 A5 JP2012081279 A5 JP 2012081279A5 JP 2011226201 A JP2011226201 A JP 2011226201A JP 2011226201 A JP2011226201 A JP 2011226201A JP 2012081279 A5 JP2012081279 A5 JP 2012081279A5
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JP
Japan
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vmmap
projection data
function
egr
weighting method
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JP2011226201A
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Japanese (ja)
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JP2012081279A (ja
JP6021311B2 (ja
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Priority claimed from US12/903,508 external-priority patent/US8270561B2/en
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JP2011226201A 2010-10-13 2011-10-13 Ｘ線コンピュータ断層撮影装置 Active JP6021311B2 (ja)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US12/903,508 2010-10-13
US12/903,508 US8270561B2 (en) 2010-10-13 2010-10-13 Motion weighting in computed tomography (CT) with cone angle

Publications (3)

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JP2012081279A JP2012081279A (ja) 2012-04-26
JP2012081279A5 true JP2012081279A5 (enExample) 2014-10-02
JP6021311B2 JP6021311B2 (ja) 2016-11-09

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JP2011226201A Active JP6021311B2 (ja) 2010-10-13 2011-10-13 Ｘ線コンピュータ断層撮影装置

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US (1) US8270561B2 (enExample)
JP (1) JP6021311B2 (enExample)
CN (1) CN102525527B (enExample)

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US8938104B2 (en) * 2008-08-29 2015-01-20 Varian Medical Systems International Ag Systems and methods for adaptive filtering
JP6026132B2 (ja) * 2012-04-11 2016-11-16 東芝メディカルシステムズ株式会社 Ｘ線コンピュータ断層撮影装置および再構成処理プログラム
US9724056B2 (en) * 2013-11-28 2017-08-08 Toshiba Medical Systems Corporation Method and system for spectral computed tomography (CT) with inner ring geometry
CN104200500B (zh) * 2014-07-29 2017-06-06 沈阳东软医疗系统有限公司 一种心脏图像的重建方法及装置
DE102014222855B4 (de) * 2014-11-10 2019-02-21 Siemens Healthcare Gmbh Optimierte Signalerfassung von quantenzählenden Detektoren
CN105806858B (zh) * 2014-12-31 2019-05-17 北京固鸿科技有限公司 Ct检测方法和ct设备
CN107205780B (zh) * 2015-02-13 2020-09-29 圣犹达医疗用品国际控股有限公司 基于跟踪的3d模型增强
US9858688B2 (en) 2015-06-30 2018-01-02 General Electric Company Methods and systems for computed tomography motion compensation
KR101725891B1 (ko) 2015-08-05 2017-04-11 삼성전자주식회사 단층 영상 장치 및 그에 따른 단층 영상 복원 방법
CN106920265B (zh) * 2015-12-28 2024-04-26 上海联影医疗科技股份有限公司 计算机断层扫描图像重建方法及装置
US10307614B2 (en) * 2016-09-22 2019-06-04 Accuray Incorporated Systems and methods for selecting a radiation therapy treatment plan
US11433243B2 (en) 2017-08-08 2022-09-06 Ebr Systems, Inc. Systems, devices, and methods for electromechanical sensing and mapping
US12285616B2 (en) 2017-08-08 2025-04-29 Ebr Systems, Inc. Systems, devices, and methods for electromechanical sensing and mapping
US11175242B2 (en) * 2018-03-20 2021-11-16 Fei Company Geometric alignment, sample motion correction, and intensity normalization of computed tomography projections using pi-line optimization
WO2020061814A1 (en) 2018-09-26 2020-04-02 Shanghai United Imaging Healthcare Co., Ltd. Systems and methods for image generation
US12343190B2 (en) 2018-09-26 2025-07-01 Shanghai United Imaging Healthcare Co., Ltd. Systems and methods for image generation
US12412321B2 (en) * 2021-12-30 2025-09-09 Canon Medical Systems Corporation Method and system to compensate for consecutive missing views in computed tomography (CT) reconstruction

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3124254B2 (ja) * 1997-07-24 2001-01-15 ジーイー横河メディカルシステム株式会社 放射線断層撮影装置
DE19854438B4 (de) * 1998-11-25 2011-04-14 Siemens Ag Verfahren zur Bildrekonstruktion für einen Computertomographen
US6421552B1 (en) * 1999-12-27 2002-07-16 Ge Medical Systems Global Technology Company, Llc Methods and apparatus for estimating cardiac motion using projection data
DE10244180B4 (de) * 2002-09-23 2009-08-27 Siemens Ag Verfahren zur Bilderstellung in der Computertomographie eines periodisch bewegten Untersuchungsobjektes und CT-Gerät zur Durchführung des Verfahrens
DE102004003882A1 (de) * 2004-01-26 2005-08-18 Siemens Ag Verfahren zur Erzeugung von tomographischen Schnittbildern eines sich periodisch bewegenden Objektes mit einer Fokus-Detektor-Kombination
WO2005077278A1 (ja) * 2004-02-16 2005-08-25 Hitachi Medical Corporation 断層撮影像の再構成方法及び断層撮影装置
CN100563570C (zh) * 2004-07-07 2009-12-02 皇家飞利浦电子股份有限公司 心脏锥面光束ct重建中条纹伪影的减少
EP1851724B1 (en) * 2005-02-10 2009-02-11 Philips Intellectual Property & Standards GmbH Computed tomography method with helical relative movement and conical beam bundle
US7613275B2 (en) * 2005-12-19 2009-11-03 General Electric Company Method and apparatus for reducing cone beam artifacts using spatially varying weighting functions
US8233682B2 (en) * 2007-06-05 2012-07-31 General Electric Company Methods and systems for improving spatial and temporal resolution of computed images of moving objects
US8494111B2 (en) 2007-11-02 2013-07-23 Kabushiki Kaisha Toshiba System and method for image reconstruction for helical cone beam computed tomography with factorized redundancy weighting
JP2010162278A (ja) * 2009-01-19 2010-07-29 Toshiba Corp Ｘ線画像診断装置

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