ES2024718B3 - Proceso y sistema de calibracion de un scaner de rayos x utilizando uno o varios patrones circulares excentricos - Google Patents

Proceso y sistema de calibracion de un scaner de rayos x utilizando uno o varios patrones circulares excentricos

Info

Publication number
ES2024718B3
ES2024718B3 ES89401458T ES89401458T ES2024718B3 ES 2024718 B3 ES2024718 B3 ES 2024718B3 ES 89401458 T ES89401458 T ES 89401458T ES 89401458 T ES89401458 T ES 89401458T ES 2024718 B3 ES2024718 B3 ES 2024718B3
Authority
ES
Spain
Prior art keywords
scaner
ray
calibration system
circular patterns
excentric
Prior art date
Legal status (The legal status 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 status listed.)
Expired - Lifetime
Application number
ES89401458T
Other languages
English (en)
Inventor
Dominique Cabinet Ballot-Schmit Cornuejols
Andrei Cabinet Ballot-Schmit Feldman
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
General Electric CGR SA
Original Assignee
General Electric CGR SA
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 General Electric CGR SA filed Critical General Electric CGR SA
Application granted granted Critical
Publication of ES2024718B3 publication Critical patent/ES2024718B3/es
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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
    • A61B6/58—Testing, adjusting or calibrating thereof
    • A61B6/582—Calibration
    • A61B6/583—Calibration using calibration phantoms
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T11/00—2D [Two Dimensional] image generation
    • G06T11/003—Reconstruction from projections, e.g. tomography
    • G06T11/005—Specific pre-processing for tomographic reconstruction, e.g. calibration, source positioning, rebinning, scatter correction, retrospective gating

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Medical Informatics (AREA)
  • Physics & Mathematics (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Surgery (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Optics & Photonics (AREA)
  • Pathology (AREA)
  • Radiology & Medical Imaging (AREA)
  • Biomedical Technology (AREA)
  • Biophysics (AREA)
  • Molecular Biology (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Apparatus For Radiation Diagnosis (AREA)
  • Analysing Materials By The Use Of Radiation (AREA)
  • Length-Measuring Devices Using Wave Or Particle Radiation (AREA)
ES89401458T 1988-06-10 1989-05-29 Proceso y sistema de calibracion de un scaner de rayos x utilizando uno o varios patrones circulares excentricos Expired - Lifetime ES2024718B3 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8807791A FR2632749B1 (fr) 1988-06-10 1988-06-10 Procede et systeme d'etalonnage d'un scanner a rayons x en utilisant un ou plusieurs etalons circulaires excentres

Publications (1)

Publication Number Publication Date
ES2024718B3 true ES2024718B3 (es) 1992-03-01

Family

ID=9367180

Family Applications (1)

Application Number Title Priority Date Filing Date
ES89401458T Expired - Lifetime ES2024718B3 (es) 1988-06-10 1989-05-29 Proceso y sistema de calibracion de un scaner de rayos x utilizando uno o varios patrones circulares excentricos

Country Status (6)

Country Link
US (1) US5214578A (es)
EP (1) EP0346181B1 (es)
JP (1) JP2753517B2 (es)
DE (1) DE68900217D1 (es)
ES (1) ES2024718B3 (es)
FR (1) FR2632749B1 (es)

Families Citing this family (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5565678A (en) * 1995-06-06 1996-10-15 Lumisys, Inc. Radiographic image quality assessment utilizing a stepped calibration target
FR2737005A1 (fr) * 1995-07-18 1997-01-24 Ge Medical Syst Sa Procede d'etalonnage geometrique d'un appareil d'imagerie
US5774519A (en) * 1997-01-30 1998-06-30 Analogic Corporation Method of and apparatus for calibration of CT scanners
US6148057A (en) * 1998-11-02 2000-11-14 Analogic Corporation Apparatus and method for calibrating detectors in a computed tomography scanner
DE10224315B4 (de) * 2002-05-31 2007-11-15 Siemens Ag Verfahren zum Bestimmung von Korrektur-Koeffizienten für Detektorkanäle eines Computertomographen
FR2848806B1 (fr) * 2002-12-18 2005-11-04 Ge Med Sys Global Tech Co Llc Procede de calibrage d'un appareil d'imagerie radiologique necessitant un nombre limite d'acquisitions
US6848827B2 (en) * 2003-05-13 2005-02-01 General Electric Company Method and apparatus for calibrating detector spectral response
US20070116183A1 (en) * 2003-07-30 2007-05-24 Hironori Ueki Tomograph
JP3919724B2 (ja) 2003-09-19 2007-05-30 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 放射線計算断層画像装置および断層像データ生成方法
JP2006000225A (ja) * 2004-06-15 2006-01-05 Canon Inc Ｘ線ｃｔ装置
ATE384310T1 (de) * 2004-07-07 2008-02-15 Koninkl Philips Electronics Nv System und verfahren zur korrektur zeitlicher artefakte in tomographischen bildern
US7950849B2 (en) * 2005-11-29 2011-05-31 General Electric Company Method and device for geometry analysis and calibration of volumetric imaging systems
EP1813192B1 (en) * 2006-01-26 2010-11-03 Kabushiki Kaisha Toshiba X-ray CT apparatus and method of aligning phantom
US7922390B2 (en) * 2007-03-29 2011-04-12 Varian Medical Systems, Inc. Method and apparatus to facilitate forming detector-level calibration information for a high energy-based scanner
WO2009131544A1 (en) * 2008-04-25 2009-10-29 Agency For Science, Technology And Research Computed tomography method and apparatus for centre-of-rotation determination
EP2366103B1 (en) * 2008-10-31 2017-12-27 Analogic Corporation Measurement of the position of the center detector for geometrically calibrating a ct scanner based on a complex phantom
GB0821561D0 (en) * 2008-11-26 2008-12-31 Siemens Medical Solutions Automated image quality test computation
US8353628B1 (en) * 2008-12-04 2013-01-15 Xradia, Inc. Method and system for tomographic projection correction
US8121250B2 (en) * 2009-02-02 2012-02-21 Arineta Ltd. Method for calibration of a CT scanner
US8777485B2 (en) 2010-09-24 2014-07-15 Varian Medical Systems, Inc. Method and apparatus pertaining to computed tomography scanning using a calibration phantom
DE102010042388A1 (de) * 2010-10-13 2012-04-19 Siemens Aktiengesellschaft Verfahren zur Kalibrierung eines CT-Systems mit zumindest einer Fokus-Detektor-Kombination mit einem quantenzählenden Detektor
US9645255B2 (en) * 2011-09-21 2017-05-09 Varian Medical Systems Particle Therapy Gmbh Method for efficient daily constancy check or calibration of proton therapy system
CN103969269B (zh) * 2013-01-31 2018-09-18 Ge医疗系统环球技术有限公司 用于几何校准ct扫描仪的方法和装置
JP2018119786A (ja) * 2015-05-26 2018-08-02 株式会社島津製作所 測定方法および放射線撮影装置
US9931098B2 (en) 2016-04-14 2018-04-03 Carestream Health, Inc. Post acquisition calibration
CN110353713A (zh) * 2019-07-16 2019-10-22 上海联影医疗科技有限公司 几何校正模体、重建图像几何参数的确定方法和装置

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1430088A (en) * 1972-05-17 1976-03-31 Emi Ltd Radiography
NL7710052A (nl) * 1977-09-14 1979-03-16 Philips Nv Inrichting voor computer-tomografie.
JPS5594241A (en) * 1979-01-11 1980-07-17 Hitachi Medical Corp Xxray transverse layer device
US4400827A (en) * 1981-11-13 1983-08-23 Spears James R Method and apparatus for calibrating rapid sequence radiography
JPS6048731A (ja) * 1983-08-29 1985-03-16 株式会社日立メディコ Ｘ線断層装置
US4663772A (en) * 1985-09-30 1987-05-05 Picker International, Inc. Bone mineral analysis phantom
US4980904A (en) * 1985-11-15 1990-12-25 Picker International, Inc. Radiation imaging calibration
US4787098A (en) * 1987-04-10 1988-11-22 Kabushiki Kaisha Toshiba Method for obtaining calibrated tomographic image data to correct for collimator width differences
US4873707A (en) * 1987-09-11 1989-10-10 Brigham & Women's Hospital X-ray tomography phantoms, method and system
US4897788A (en) * 1988-04-18 1990-01-30 General Electric Company Image correction for computed tomography to remove crosstalk artifacts

Also Published As

Publication number Publication date
FR2632749B1 (fr) 1990-08-24
JPH0231744A (ja) 1990-02-01
DE68900217D1 (de) 1991-09-26
JP2753517B2 (ja) 1998-05-20
EP0346181B1 (fr) 1991-08-21
FR2632749A1 (fr) 1989-12-15
US5214578A (en) 1993-05-25
EP0346181A1 (fr) 1989-12-13

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