ATE441358T1 - Gerät und verfahren zur reduzierung von ríntgenstreuung und korrektur für fächerstrahl-ct und kegelstrahl-volumen-ct - Google Patents

Gerät und verfahren zur reduzierung von ríntgenstreuung und korrektur für fächerstrahl-ct und kegelstrahl-volumen-ct

Info

Publication number
ATE441358T1
ATE441358T1 AT03717902T AT03717902T ATE441358T1 AT E441358 T1 ATE441358 T1 AT E441358T1 AT 03717902 T AT03717902 T AT 03717902T AT 03717902 T AT03717902 T AT 03717902T AT E441358 T1 ATE441358 T1 AT E441358T1
Authority
AT
Austria
Prior art keywords
images
stop array
scatter
beam stop
taken
Prior art date
Application number
AT03717902T
Other languages
English (en)
Inventor
Ruola Ning
Original Assignee
Univ Rochester
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Univ Rochester filed Critical Univ Rochester
Application granted granted Critical
Publication of ATE441358T1 publication Critical patent/ATE441358T1/de

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B6/00—Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment
    • A61B6/48—Diagnostic techniques
    • A61B6/483—Diagnostic techniques involving scattered radiation
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B6/00—Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment
    • A61B6/02—Arrangements for diagnosis sequentially in different planes; Stereoscopic radiation diagnosis
    • A61B6/03—Computed tomography [CT]
    • A61B6/032—Transmission computed tomography [CT]
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B6/00—Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment
    • A61B6/40—Arrangements for generating radiation specially adapted for radiation diagnosis
    • A61B6/4035—Arrangements for generating radiation specially adapted for radiation diagnosis the source being combined with a filter or grating
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B6/00—Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment
    • A61B6/40—Arrangements for generating radiation specially adapted for radiation diagnosis
    • A61B6/4064—Arrangements for generating radiation specially adapted for radiation diagnosis specially adapted for producing a particular type of beam
    • A61B6/4085—Cone-beams
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B6/00—Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment
    • A61B6/52—Devices using data or image processing specially adapted for radiation diagnosis
    • A61B6/5211—Devices using data or image processing specially adapted for radiation diagnosis involving processing of medical diagnostic data
    • A61B6/5229—Devices using data or image processing specially adapted for radiation diagnosis involving processing of medical diagnostic data combining image data of a patient, e.g. combining a functional image with an anatomical image
    • A61B6/5235—Devices using data or image processing specially adapted for radiation diagnosis involving processing of medical diagnostic data combining image data of a patient, e.g. combining a functional image with an anatomical image combining images from the same or different ionising radiation imaging techniques, e.g. PET and CT
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B6/00—Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment
    • A61B6/52—Devices using data or image processing specially adapted for radiation diagnosis
    • A61B6/5258—Devices using data or image processing specially adapted for radiation diagnosis involving detection or reduction of artifacts or noise
    • A61B6/5282—Devices using data or image processing specially adapted for radiation diagnosis involving detection or reduction of artifacts or noise due to scatter
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T12/00—Tomographic reconstruction from projections
    • G06T12/10—Image preprocessing, e.g. calibration, positioning of sources or scatter correction
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B6/00—Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment
    • A61B6/02—Arrangements for diagnosis sequentially in different planes; Stereoscopic radiation diagnosis
    • A61B6/027—Arrangements for diagnosis sequentially in different planes; Stereoscopic radiation diagnosis characterised by the use of a particular data acquisition trajectory, e.g. helical or spiral
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B6/00—Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment
    • A61B6/42—Arrangements for detecting radiation specially adapted for radiation diagnosis
    • A61B6/4291—Arrangements for detecting radiation specially adapted for radiation diagnosis the detector being combined with a grid or grating
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B6/00—Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment
    • A61B6/50—Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment specially adapted for specific body parts; specially adapted for specific clinical applications
    • A61B6/508—Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment specially adapted for specific body parts; specially adapted for specific clinical applications for non-human patients
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B6/00—Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment
    • A61B6/58—Testing, adjusting or calibrating thereof
    • A61B6/582—Calibration
    • A61B6/583—Calibration using calibration phantoms
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S378/00—X-ray or gamma ray systems or devices
    • Y10S378/901—Computer tomography program or processor

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Medical Informatics (AREA)
  • Physics & Mathematics (AREA)
  • Pathology (AREA)
  • Molecular Biology (AREA)
  • Biophysics (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Veterinary Medicine (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Optics & Photonics (AREA)
  • Public Health (AREA)
  • Radiology & Medical Imaging (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • General Health & Medical Sciences (AREA)
  • Surgery (AREA)
  • Animal Behavior & Ethology (AREA)
  • Theoretical Computer Science (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • Toxicology (AREA)
  • General Physics & Mathematics (AREA)
  • Pulmonology (AREA)
  • Apparatus For Radiation Diagnosis (AREA)
  • Image Processing (AREA)
  • Analysing Materials By The Use Of Radiation (AREA)
AT03717902T 2002-02-21 2003-02-21 Gerät und verfahren zur reduzierung von ríntgenstreuung und korrektur für fächerstrahl-ct und kegelstrahl-volumen-ct ATE441358T1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US10/078,529 US6618466B1 (en) 2002-02-21 2002-02-21 Apparatus and method for x-ray scatter reduction and correction for fan beam CT and cone beam volume CT
PCT/US2003/004871 WO2003073377A2 (en) 2002-02-21 2003-02-21 Ct x-ray scatter correction

Publications (1)

Publication Number Publication Date
ATE441358T1 true ATE441358T1 (de) 2009-09-15

Family

ID=27765216

Family Applications (1)

Application Number Title Priority Date Filing Date
AT03717902T ATE441358T1 (de) 2002-02-21 2003-02-21 Gerät und verfahren zur reduzierung von ríntgenstreuung und korrektur für fächerstrahl-ct und kegelstrahl-volumen-ct

Country Status (8)

Country Link
US (1) US6618466B1 (de)
EP (1) EP1476077B1 (de)
CN (1) CN100457039C (de)
AT (1) ATE441358T1 (de)
AU (1) AU2003222223B2 (de)
CA (1) CA2476605A1 (de)
DE (1) DE60329078D1 (de)
WO (1) WO2003073377A2 (de)

Families Citing this family (107)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20040066885A1 (en) * 2002-07-08 2004-04-08 Kabushiki Kaisha Toshiba X-ray diagnosis apparatus
US8275091B2 (en) 2002-07-23 2012-09-25 Rapiscan Systems, Inc. Compact mobile cargo scanning system
US7963695B2 (en) 2002-07-23 2011-06-21 Rapiscan Systems, Inc. Rotatable boom cargo scanning system
US7564938B2 (en) 2003-04-11 2009-07-21 Hologic, Inc. Scatter rejection for composite medical imaging systems
US8804899B2 (en) 2003-04-25 2014-08-12 Rapiscan Systems, Inc. Imaging, data acquisition, data transmission, and data distribution methods and systems for high data rate tomographic X-ray scanners
GB0309385D0 (en) 2003-04-25 2003-06-04 Cxr Ltd X-ray monitoring
GB0309379D0 (en) 2003-04-25 2003-06-04 Cxr Ltd X-ray scanning
US9113839B2 (en) 2003-04-25 2015-08-25 Rapiscon Systems, Inc. X-ray inspection system and method
US8243876B2 (en) 2003-04-25 2012-08-14 Rapiscan Systems, Inc. X-ray scanners
US7949101B2 (en) 2005-12-16 2011-05-24 Rapiscan Systems, Inc. X-ray scanners and X-ray sources therefor
US8223919B2 (en) 2003-04-25 2012-07-17 Rapiscan Systems, Inc. X-ray tomographic inspection systems for the identification of specific target items
US8837669B2 (en) 2003-04-25 2014-09-16 Rapiscan Systems, Inc. X-ray scanning system
GB0525593D0 (en) 2005-12-16 2006-01-25 Cxr Ltd X-ray tomography inspection systems
US8451974B2 (en) 2003-04-25 2013-05-28 Rapiscan Systems, Inc. X-ray tomographic inspection system for the identification of specific target items
US6928141B2 (en) 2003-06-20 2005-08-09 Rapiscan, Inc. Relocatable X-ray imaging system and method for inspecting commercial vehicles and cargo containers
US6876718B2 (en) * 2003-06-27 2005-04-05 Ge Medical Systems Global Technology Company, Llc Scatter correction methods and apparatus
JP4041025B2 (ja) * 2003-07-15 2008-01-30 ジーイー・メディカル・システムズ・グローバル・テクノロジー・カンパニー・エルエルシー Ｘ線分布調整フィルタ装置およびそれを用いたｘ線ｃｔ装置
JP3999179B2 (ja) * 2003-09-09 2007-10-31 ジーイー・メディカル・システムズ・グローバル・テクノロジー・カンパニー・エルエルシー 放射線断層撮影装置
EP1740097A1 (de) * 2004-04-21 2007-01-10 Philips Intellectual Property & Standards GmbH Fächerstrahl-computertomografie mit kohärenter streustrahlung
US7136450B2 (en) * 2004-05-26 2006-11-14 Analogic Corporation Method of and system for adaptive scatter correction in multi-energy computed tomography
DE102004029009A1 (de) * 2004-06-16 2006-01-19 Siemens Ag Vorrichtung und Verfahren für die Streustrahlungskorrektur in der Computer-Tomographie
JP2008510132A (ja) * 2004-08-12 2008-04-03 コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ 放射線検出器用の抗散乱グリッド
US20060088140A1 (en) * 2004-09-30 2006-04-27 Rebecca Fahrig System and method for performing scatter measurement in volumetric CT
EP1833372A1 (de) * 2004-12-28 2007-09-19 Koninklijke Philips Electronics N.V. Medizinische 3d-röntgenbildgebungsvorrichtung mit drehbarem c-förmigem arm
US7471764B2 (en) 2005-04-15 2008-12-30 Rapiscan Security Products, Inc. X-ray imaging system having improved weather resistance
US7991242B2 (en) 2005-05-11 2011-08-02 Optosecurity Inc. Apparatus, method and system for screening receptacles and persons, having image distortion correction functionality
WO2006119603A1 (en) 2005-05-11 2006-11-16 Optosecurity Inc. Method and system for screening luggage items, cargo containers or persons
US7492858B2 (en) * 2005-05-20 2009-02-17 Varian Medical Systems, Inc. System and method for imaging and treatment of tumorous tissue in breasts using computed tomography and radiotherapy
US7692650B2 (en) * 2005-06-01 2010-04-06 Analogic Corporation Method of and system for 3D display of multi-energy computed tomography images
CN1881075B (zh) * 2005-06-15 2011-08-03 上海医疗器械厂有限公司 一种x射线数字成像的校正方法
US7397044B2 (en) * 2005-07-21 2008-07-08 Siemens Medical Solutions Usa, Inc. Imaging mode for linear accelerators
US7298816B2 (en) * 2005-08-02 2007-11-20 The General Hospital Corporation Tomography system
EP1937149A1 (de) * 2005-10-19 2008-07-02 The General Hospital Corporation Darstellungssystem und relevante techniken
US7283605B2 (en) * 2006-01-14 2007-10-16 General Electric Company Methods and apparatus for scatter correction
US7643605B2 (en) * 2006-02-27 2010-01-05 University Of Rochester Method and apparatus for cone beam CT dynamic imaging
CA2643894A1 (en) * 2006-02-27 2007-09-07 University Of Rochester Phase contrast cone-beam ct imaging
US8983024B2 (en) 2006-04-14 2015-03-17 William Beaumont Hospital Tetrahedron beam computed tomography with multiple detectors and/or source arrays
WO2007120744A2 (en) 2006-04-14 2007-10-25 William Beaumont Hospital Scanning slot cone-beam computed tomography and scanning focus spot cone-beam computed tomography
US9339243B2 (en) 2006-04-14 2016-05-17 William Beaumont Hospital Image guided radiotherapy with dual source and dual detector arrays tetrahedron beam computed tomography
JP2007300964A (ja) * 2006-05-08 2007-11-22 Ge Medical Systems Global Technology Co Llc 放射線撮影装置および放射線撮影方法
US7899232B2 (en) 2006-05-11 2011-03-01 Optosecurity Inc. Method and apparatus for providing threat image projection (TIP) in a luggage screening system, and luggage screening system implementing same
WO2008013598A2 (en) 2006-05-25 2008-01-31 William Beaumont Hospital Real-time, on-line and offline treatment dose tracking and feedback process for volumetric image guided adaptive radiotherapy
US8494210B2 (en) 2007-03-30 2013-07-23 Optosecurity Inc. User interface for use in security screening providing image enhancement capabilities and apparatus for implementing same
GB2450073B (en) * 2006-08-25 2009-11-04 Siemens Molecular Imaging Ltd Regional reconstruction of spatially distributed functions
US20090080604A1 (en) 2007-08-23 2009-03-26 Fischer Medical Technologies, Inc. Computed tomography breast imaging and biopsy system
US7812314B1 (en) 2007-11-06 2010-10-12 The United Sttes of America as represented by the United States Department of Energy Flat panel X-ray detector with reduced internal scattering for improved attenuation accuracy and dynamic range
WO2009063353A2 (en) * 2007-11-15 2009-05-22 Koninklijke Philips Electronics N.V. Movable wedge for improved image quality in 3d x-ray imaging
DE102007056980B4 (de) * 2007-11-27 2016-09-22 Siemens Healthcare Gmbh Verfahren und Vorrichtung für die Computertomographie
US8144829B2 (en) * 2008-02-27 2012-03-27 The Board Of Trustees Of The Leland Stanford Junior University Cone-beam CT imaging scheme
GB0803641D0 (en) 2008-02-28 2008-04-02 Rapiscan Security Products Inc Scanning systems
GB0803644D0 (en) 2008-02-28 2008-04-02 Rapiscan Security Products Inc Scanning systems
US8023767B1 (en) 2008-03-10 2011-09-20 University Of Rochester Method and apparatus for 3D metal and high-density artifact correction for cone-beam and fan-beam CT imaging
US8873703B2 (en) 2008-05-08 2014-10-28 Arineta Ltd. X ray imaging system with scatter radiation correction and method of using same
GB2460089A (en) * 2008-05-16 2009-11-18 Elekta Ab Coincident treatment and imaging source
GB0809110D0 (en) 2008-05-20 2008-06-25 Rapiscan Security Products Inc Gantry scanner systems
WO2010032163A1 (en) 2008-09-16 2010-03-25 Koninklijke Philips Electronics N.V. Imaging apparatus including correction unit for scattered radiation
US8184767B2 (en) 2008-12-10 2012-05-22 General Electric Company Imaging system and method with scatter correction
US7949095B2 (en) 2009-03-02 2011-05-24 University Of Rochester Methods and apparatus for differential phase-contrast fan beam CT, cone-beam CT and hybrid cone-beam CT
WO2011084878A1 (en) 2010-01-05 2011-07-14 William Beaumont Hospital Intensity modulated arc therapy with continuous couch rotation/shift and simultaneous cone beam imaging
DE102010019631B4 (de) * 2010-05-06 2018-05-30 Siemens Healthcare Gmbh Verfahren zur Bearbeitung eines Röntgenbildes und Röntgensystem
DE102010020150A1 (de) * 2010-05-11 2011-11-17 Siemens Aktiengesellschaft Steustrahlenkorrektur in der Computertomographie mittels eines mehrfachen BeamHoleArrays
CN102068270B (zh) * 2010-12-16 2012-09-05 西安交通大学 一种使用静止环状射线阻挡阵列的锥束ct扫描和散射校正方法
US8989469B2 (en) 2010-12-20 2015-03-24 The Board Of Trustees Of The Leland Stanford Junior University Systems and methods for simultaneous acquisition of scatter and image projection data in computed tomography
US9218933B2 (en) 2011-06-09 2015-12-22 Rapidscan Systems, Inc. Low-dose radiographic imaging system
CA3069211C (en) 2011-09-07 2022-06-21 Rapiscan Systems, Inc. X-ray inspection system that integrates manifest data with imaging/detection processing
US9826949B2 (en) 2012-03-05 2017-11-28 University Of Rochester Methods and apparatus for differential phase-contrast cone-beam CT and hybrid cone-beam CT
US8989342B2 (en) * 2012-04-18 2015-03-24 The Boeing Company Methods and systems for volumetric reconstruction using radiography
CA2898654C (en) 2013-01-31 2020-02-25 Rapiscan Systems, Inc. Portable security inspection system
US9364191B2 (en) 2013-02-11 2016-06-14 University Of Rochester Method and apparatus of spectral differential phase-contrast cone-beam CT and hybrid cone-beam CT
CN104095643A (zh) * 2013-04-08 2014-10-15 上海联影医疗科技有限公司 一种x射线成像装置
US9076563B2 (en) * 2013-06-03 2015-07-07 Zhengrong Ying Anti-scatter collimators for detector systems of multi-slice X-ray computed tomography systems
GB2521409A (en) * 2013-12-18 2015-06-24 Elekta Ab Target-specific dose & scatter estimation in CT images
US10667767B2 (en) 2014-05-02 2020-06-02 General Electric Company Systems and methods for selecting bowtie filter configuration
DE102014213464A1 (de) 2014-07-10 2016-01-14 Siemens Aktiengesellschaft Verfahren zur kombinierten Dual-Energy-Mammographie- und Tomosynthesebildgebung und Tomosynthesegerät
CN104161536B (zh) * 2014-07-30 2017-01-11 西北工业大学 一种基于互补光栅的锥束ct散射校正方法及其装置
US10284794B1 (en) 2015-01-07 2019-05-07 Car360 Inc. Three-dimensional stabilized 360-degree composite image capture
EP3265789B1 (de) 2015-03-06 2019-12-25 GE Sensing & Inspection Technologies GmbH Bildgebungssystem und -verfahren mit streuungskorrektur
WO2016177903A1 (en) * 2015-05-07 2016-11-10 Koninklijke Philips N.V. Beam hardening correction for scanning dark field and phase contrast imaging
WO2016209138A1 (en) * 2015-06-26 2016-12-29 Prismatic Sensors Ab Scatter estimation and/or correction in x-ray imaging
US11076821B2 (en) 2015-11-25 2021-08-03 The Regents Of The University Of California 3D-beam modulation filter for equalizing dose and image quality in breast CT
CN105574828B (zh) * 2015-12-22 2019-01-25 沈阳东软医疗系统有限公司 图像散射校正方法、装置及设备
CN105396229B (zh) * 2015-12-28 2018-05-04 上海联影医疗科技有限公司 一种放射治疗设备的成像装置和方法
PL3764280T3 (pl) 2016-02-22 2025-03-17 Rapiscan Systems, Inc. Sposoby weryfikacji typów kontenerów
DE102016219694A1 (de) * 2016-10-11 2018-04-12 Siemens Healthcare Gmbh Verfahren zur Ermittlung eines dreidimensionalen Bilddatensatzes durch eine Röntgeneinrichtung
WO2018082088A1 (zh) * 2016-11-07 2018-05-11 深圳先进技术研究院 一种用于锥束ct图像散射修正的阻挡光栅优化方法及装置
US10631815B2 (en) 2017-05-10 2020-04-28 General Electric Company Scatter correction technique for use with a radiation detector
KR102020221B1 (ko) * 2017-11-24 2019-09-10 주식회사 레이 치과용 콘-빔 ｃｔ의 산란선 보정방법 및 보정장치
CN108535293B (zh) * 2018-02-26 2020-08-25 张岚 康普顿散射成像方法
CN108542414B (zh) * 2018-05-14 2019-08-23 广州华端科技有限公司 计算机断层图像的散射校正方法以及装置
EP3576047A1 (de) 2018-05-29 2019-12-04 Koninklijke Philips N.V. Streukorrektur für röntgenbildgebung
CN109298133B (zh) * 2018-07-18 2021-07-13 重庆邮电大学 基于边缘通道校正的探测器模块生产良品率改进方法
CN108903961A (zh) * 2018-07-19 2018-11-30 深圳市倍康美医疗电子商务有限公司 一种cbct成像方法、存储介质及系统
CN111096761B (zh) * 2018-10-29 2024-03-08 上海西门子医疗器械有限公司 修正楔形滤波器散射的方法、装置和相关设备
JP6947424B2 (ja) * 2019-04-19 2021-10-13 朝日レントゲン工業株式会社 散乱線強度算出装置及びそれを備えた散乱線補正装置並びに散乱線強度算出方法
DE102019210204A1 (de) 2019-07-10 2021-01-14 Carl Zeiss Industrielle Messtechnik Gmbh Verfahren zum Korrigieren von Streustrahlung in einem Computertomographen und Computertomograph
CA3149539A1 (en) 2019-09-16 2021-03-25 Voti Inc. Probabilistic image analysis
US11748844B2 (en) * 2020-01-08 2023-09-05 Carvana, LLC Systems and methods for generating a virtual display of an item
CN111685784A (zh) * 2020-06-22 2020-09-22 上海联影医疗科技有限公司 一种基于面阵光源的散射校正方法和系统
WO2021258785A1 (en) * 2020-06-22 2021-12-30 Shanghai United Imaging Healthcare Co., Ltd. Systems and methods for x-ray imaging
US11698349B2 (en) 2020-10-09 2023-07-11 Baker Hughes Oilfield Operations Llc Scatter correction for computed tomography imaging
US11662321B2 (en) 2020-10-09 2023-05-30 Baker Hughes Oilfield Operations Llc Scatter correction for computed tomography imaging
US11911199B2 (en) 2020-11-24 2024-02-27 Our United Corporation Medical imaging apparatus and treatment device
EP4346608A1 (de) 2021-05-27 2024-04-10 Sail SV LLC Röntgenbildgebungssystem und -verfahren
TWI775563B (zh) * 2021-08-11 2022-08-21 國立虎尾科技大學 全域式頻域光學同調斷層掃描系統
CN115067982A (zh) * 2022-05-30 2022-09-20 西安大医集团股份有限公司 主射线投影图像获取方法、成像控制方法、设备及系统
US12257088B2 (en) 2022-10-21 2025-03-25 Siemens Healthineers International Ag Estimating scatter in X-ray images caused by imaging system components using spatially-dependent kernels
US12433552B2 (en) * 2022-10-21 2025-10-07 Siemens Healthineers International Ag Estimating scatter in X-ray images caused by imaging system components using kernels based on beam hardening

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4549307A (en) * 1982-09-07 1985-10-22 The Board Of Trustees Of The Leland Stanford, Junior University X-Ray imaging system having radiation scatter compensation and method
DE3469666D1 (en) * 1983-04-25 1988-04-07 Toshiba Kk X-ray diagnostic apparatus
JPS61249452A (ja) * 1985-04-30 1986-11-06 株式会社東芝 Ｘ線診断装置
EP0689047B1 (de) * 1994-06-23 1998-09-09 Agfa-Gevaert N.V. Verfahren zur Kompensation von Streustrahlung in einem Röntgen-Abbildungssystem
US6052433A (en) * 1995-12-29 2000-04-18 Advanced Optical Technologies, Inc. Apparatus and method for dual-energy x-ray imaging
US5999587A (en) 1997-07-03 1999-12-07 University Of Rochester Method of and system for cone-beam tomography reconstruction
US6075836A (en) 1997-07-03 2000-06-13 University Of Rochester Method of and system for intravenous volume tomographic digital angiography imaging
US6134297A (en) * 1998-12-09 2000-10-17 Advanced Optical Technologies, Inc. Apparatus and method for removing scatter from an x-ray image using two-dimensional detectors and a single-energy spectrum x-ray source
US6480565B1 (en) 1999-11-18 2002-11-12 University Of Rochester Apparatus and method for cone beam volume computed tomography breast imaging
US6504892B1 (en) 2000-10-13 2003-01-07 University Of Rochester System and method for cone beam volume computed tomography using circle-plus-multiple-arc orbit

Also Published As

Publication number Publication date
AU2003222223B2 (en) 2008-06-26
CA2476605A1 (en) 2003-09-04
CN100457039C (zh) 2009-02-04
EP1476077A2 (de) 2004-11-17
CN1635850A (zh) 2005-07-06
EP1476077B1 (de) 2009-09-02
DE60329078D1 (de) 2009-10-15
AU2003222223A1 (en) 2003-09-09
US6618466B1 (en) 2003-09-09
WO2003073377A3 (en) 2004-03-18
EP1476077A4 (de) 2006-04-19
WO2003073377A2 (en) 2003-09-04

Similar Documents

Publication Publication Date Title
DE60329078D1 (de) Gerät und verfahren zur reduzierung von röntgenstreuung und korrektur für fächerstrahl-ct und kegelstrahl-volumen-ct
Kidoh et al. Reduction of dental metallic artefacts in CT: value of a newly developed algorithm for metal artefact reduction (O-MAR)
US7742557B2 (en) Method for generating a 3D reconstruction of a body
WO2006116265A3 (en) Method and apparatus of global de-noising for ct imaging
WO2006073584A3 (en) Cone-beam filtered backprojection image reconstruction method for short trajectories
JP2014518133A (ja) 画像再構成方法とシステム｛ｉｔｅｒａｔｉｖｅｉｍａｇｅｒｅｃｏｎｓｇｔｒｕｃｔｉｏｎ｝
Chang et al. Prior-guided metal artifact reduction for iterative X-ray computed tomography
JP2016041387A5 (ja) Ｘ線ｃｔ装置
Wang et al. A novel metal artifact reducing method for cone-beam CT based on three approximately orthogonal projections
WO2009141767A1 (en) Method and apparatus for scatter correction
Chang et al. Metal artifact reduction algorithm for single energy and dual energy CT scans
JP6402282B1 (ja) オブジェクト用のｘ線画像装置
CN105469366B (zh) 一种消减ct图像金属伪影的解析方法
JP2008528228A (ja) 金属アーチファクト補正用の放射状適応フィルタ
KR101717433B1 (ko) 엑스레이 컴퓨터 단층촬영 환경에서 빔 경화현상에 의한 인공물 보정방법
US20080187195A1 (en) Image Processing System, Particularly for Circular and Helical Cone-Beam Ct
US20030012338A1 (en) Method and system for management of the dynamics of a digitized radiological image
CN107430779A (zh) 多能量（谱）图像数据处理
Chen et al. Novel method for reducing high-attenuation object artifacts in CT reconstructions
US20210282733A1 (en) Edge noise reduction
Jeong et al. Reduction of artifacts due to multiple metallic objects in computed tomography
JP5317612B2 (ja) 断層像処理装置、ｘ線ｃｔ装置およびプログラム
Choi et al. A metal artifact reduction method for small field of view CT imaging
JPS6051974A (ja) 再投映システム
Iuso et al. CAD-Based scatter compensation for polychromatic reconstruction of additive manufactured parts

Legal Events

Date Code Title Description
RER Ceased as to paragraph 5 lit. 3 law introducing patent treaties