DE602004022382D1 - Methode zur Steuungsmessung, Methode zur Streuungskorrektur, und Vorrichtung für Röntgencomputertomographie - Google Patents

Methode zur Steuungsmessung, Methode zur Streuungskorrektur, und Vorrichtung für Röntgencomputertomographie

Info

Publication number
DE602004022382D1
DE602004022382D1 DE602004022382T DE602004022382T DE602004022382D1 DE 602004022382 D1 DE602004022382 D1 DE 602004022382D1 DE 602004022382 T DE602004022382 T DE 602004022382T DE 602004022382 T DE602004022382 T DE 602004022382T DE 602004022382 D1 DE602004022382 D1 DE 602004022382D1
Authority
DE
Germany
Prior art keywords
computed tomography
ray computed
control measurement
scatter correction
scatter
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.)
Active
Application number
DE602004022382T
Other languages
English (en)
Inventor
Masatake Nukui
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.)
GE Medical Systems Global Technology Co LLC
Original Assignee
GE Medical Systems Global Technology Co LLC
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 GE Medical Systems Global Technology Co LLC filed Critical GE Medical Systems Global Technology Co LLC
Publication of DE602004022382D1 publication Critical patent/DE602004022382D1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • A61B6/02—Arrangements for diagnosis sequentially in different planes; Stereoscopic radiation diagnosis
    • A61B6/03—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
    • A61B6/58—Testing, adjusting or calibrating thereof
    • A61B6/582—Calibration
    • A61B6/583—Calibration using calibration phantoms
    • 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
    • A61B6/06—Diaphragms
    • 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
    • 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
    • A61B6/585—Calibration of detector units
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N23/00—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00
    • G01N23/02—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by transmitting the radiation through the material
    • G01N23/04—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by transmitting the radiation through the material and forming images of the material
    • G01N23/046—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by transmitting the radiation through the material and forming images of the material using tomography, e.g. computed tomography [CT]
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01T—MEASUREMENT OF NUCLEAR OR X-RADIATION
    • G01T1/00—Measuring X-radiation, gamma radiation, corpuscular radiation, or cosmic radiation
    • G01T1/29—Measurement performed on radiation beams, e.g. position or section of the beam; Measurement of spatial distribution of radiation
    • G01T1/2914—Measurement of spatial distribution of radiation
    • G01T1/2985—In depth localisation, e.g. using positron emitters; Tomographic imaging (longitudinal and transverse section imaging; apparatus for radiation diagnosis sequentially in different planes, steroscopic radiation diagnosis)
    • 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
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2223/00—Investigating materials by wave or particle radiation
    • G01N2223/40—Imaging
    • G01N2223/419—Imaging computed tomograph

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Medical Informatics (AREA)
  • Physics & Mathematics (AREA)
  • Molecular Biology (AREA)
  • General Health & Medical Sciences (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Pathology (AREA)
  • Radiology & Medical Imaging (AREA)
  • Surgery (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Biomedical Technology (AREA)
  • Optics & Photonics (AREA)
  • Animal Behavior & Ethology (AREA)
  • Biophysics (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Theoretical Computer Science (AREA)
  • Pulmonology (AREA)
  • General Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • Immunology (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Apparatus For Radiation Diagnosis (AREA)
DE602004022382T 2004-01-07 2004-12-22 Methode zur Steuungsmessung, Methode zur Streuungskorrektur, und Vorrichtung für Röntgencomputertomographie Active DE602004022382D1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2004001941A JP3950855B2 (ja) 2004-01-07 2004-01-07 散乱測定方法、散乱補正方法およびｘ線ｃｔ装置

Publications (1)

Publication Number Publication Date
DE602004022382D1 true DE602004022382D1 (de) 2009-09-17

Family

ID=34587684

Family Applications (1)

Application Number Title Priority Date Filing Date
DE602004022382T Active DE602004022382D1 (de) 2004-01-07 2004-12-22 Methode zur Steuungsmessung, Methode zur Streuungskorrektur, und Vorrichtung für Röntgencomputertomographie

Country Status (6)

Country Link
US (1) US7334940B2 (de)
EP (1) EP1553407B1 (de)
JP (1) JP3950855B2 (de)
KR (1) KR100685566B1 (de)
CN (1) CN100415173C (de)
DE (1) DE602004022382D1 (de)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6568851B2 (en) * 2000-10-25 2003-05-27 Kabushiki Kaisha Toshiba X-ray CT scanner
US7065234B2 (en) * 2004-02-23 2006-06-20 General Electric Company Scatter and beam hardening correction in computed tomography applications
JP4336661B2 (ja) * 2005-03-01 2009-09-30 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ｃｔ装置および散乱測定方法
WO2007069121A1 (en) * 2005-12-15 2007-06-21 Philips Intellectual Property & Standards Gmbh Advanced convergence for multiple iterative algorithm
DE102006012946A1 (de) * 2006-03-21 2007-09-27 Siemens Ag Strahlungserfassungseinheit für einen Computertomographen
WO2008012710A1 (en) 2006-07-20 2008-01-31 Koninklijke Philips Electronics N. V. X-ray detector gain calibration depending on the fraction of scattered radiation
US7336760B2 (en) * 2006-07-28 2008-02-26 Varian Medical Systems Technologies, Inc. Methods, systems, and computer-program products to estimate scattered radiation in cone-beam computerized tomographic images and the like
CN100510725C (zh) * 2006-11-14 2009-07-08 北京国药恒瑞美联信息技术有限公司 用于消除散射辐射影响的虚拟滤线栅成像方法及其系统
US7396162B1 (en) * 2007-03-30 2008-07-08 General Electric Company Scatter correction for CT method and apparatus
JP5220383B2 (ja) * 2007-10-29 2013-06-26 株式会社日立メディコ 放射線撮像装置
DE102008011391A1 (de) * 2008-02-27 2009-10-15 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Röntgencomputertomograph und Verfahren zur Untersuchung eines Objektes mittels Röntgencomputertomographie
JP5894371B2 (ja) * 2011-03-07 2016-03-30 キヤノン株式会社 放射線撮像装置及びその制御方法
KR101255224B1 (ko) * 2011-06-15 2013-04-17 한국과학기술원 Ｘ선 단층촬영 시스템 및 이를 이용한 산란 보정 방법
JP6711410B2 (ja) * 2016-11-01 2020-06-17 株式会社島津製作所 放射線断層撮影装置の撮像倍率校正方法
CN107802280B (zh) * 2017-11-08 2021-02-19 上海联影医疗科技股份有限公司 校正曲线生成方法、投影图像的校正方法、系统及存储介质
CN108335269B (zh) * 2018-01-16 2022-03-04 东软医疗系统股份有限公司 X线图像的散射修正方法、装置、控制设备及存储介质
CN108606805B (zh) * 2018-03-15 2022-02-11 东软医疗系统股份有限公司 一种散射校正方法、装置及设备

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1569413A (en) * 1976-02-05 1980-06-18 Emi Ltd Radography
JPS62191972A (ja) * 1986-02-18 1987-08-22 Toshiba Corp Ｘ線画像処理装置
JP3408848B2 (ja) * 1993-11-02 2003-05-19 株式会社日立メディコ 散乱ｘ線補正法及びｘ線ｃｔ装置並びに多チャンネルｘ線検出器
BE1007766A3 (nl) * 1993-11-10 1995-10-17 Philips Electronics Nv Werkwijze en inrichting voor computer tomografie.
JP3426677B2 (ja) 1994-01-27 2003-07-14 株式会社日立メディコ Ｘ線ｃｔ装置
JPH08131431A (ja) 1994-11-08 1996-05-28 Hitachi Medical Corp Ｘ線ｃｔ装置
DE19523090C1 (de) * 1995-06-26 1996-08-29 Siemens Ag Röntgenuntersuchungsgerät
JP3540914B2 (ja) * 1997-05-19 2004-07-07 株式会社日立メディコ Ｘ線撮影装置
DE19721535C2 (de) * 1997-05-22 2001-09-06 Siemens Ag Röntgen-Computertomograph zur Erzeugung von Röntgenschattenbildern
US6163589A (en) * 1998-06-13 2000-12-19 General Electric Company Monte Carlo scatter correction method for computed tomography of general object geometries
JP4218908B2 (ja) 1998-04-24 2009-02-04 株式会社東芝 Ｘ線ｃｔ装置
JP4398525B2 (ja) * 1999-01-08 2010-01-13 株式会社東芝 Ｘ線コンピュータ断層撮影装置
US6175609B1 (en) * 1999-04-20 2001-01-16 General Electric Company Methods and apparatus for scanning an object in a computed tomography system
US6408049B1 (en) * 1999-11-09 2002-06-18 General Electric Company Apparatus, methods, and computer programs for estimating and correcting scatter in digital radiographic and tomographic imaging
US6568851B2 (en) * 2000-10-25 2003-05-27 Kabushiki Kaisha Toshiba X-ray CT scanner
US6687326B1 (en) * 2001-04-11 2004-02-03 Analogic Corporation Method of and system for correcting scatter in a computed tomography scanner

Also Published As

Publication number Publication date
EP1553407A1 (de) 2005-07-13
JP3950855B2 (ja) 2007-08-01
CN1636516A (zh) 2005-07-13
CN100415173C (zh) 2008-09-03
EP1553407B1 (de) 2009-08-05
US7334940B2 (en) 2008-02-26
KR20050072690A (ko) 2005-07-12
US20050147200A1 (en) 2005-07-07
KR100685566B1 (ko) 2007-02-22
JP2005192790A (ja) 2005-07-21

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