CN103648391B - 成像系统探测器校准 - Google Patents

成像系统探测器校准 Download PDF

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Publication number
CN103648391B
CN103648391B CN201280034114.7A CN201280034114A CN103648391B CN 103648391 B CN103648391 B CN 103648391B CN 201280034114 A CN201280034114 A CN 201280034114A CN 103648391 B CN103648391 B CN 103648391B
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source
detector
data
radiation
detector array
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Chinese (zh)
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CN103648391A (zh
Inventor
R·卡尔米
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Koninklijke Philips NV
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Koninklijke Philips Electronics NV
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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01T—MEASUREMENT OF NUCLEAR OR X-RADIATION
    • G01T7/00—Details of radiation-measuring instruments
    • G01T7/005—Details of radiation-measuring instruments calibration techniques
    • 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
    • A61B6/4007—Arrangements for generating radiation specially adapted for radiation diagnosis characterised by using a plurality of source units
    • 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
    • A61B6/4208—Arrangements for detecting radiation specially adapted for radiation diagnosis characterised by using a particular type of detector
    • A61B6/4233—Arrangements for detecting radiation specially adapted for radiation diagnosis characterised by using a particular type of detector using matrix detectors
    • 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
    • G01T1/16—Measuring radiation intensity
    • G01T1/24—Measuring radiation intensity with semiconductor detectors
    • G01T1/249—Measuring radiation intensity with semiconductor detectors specially adapted for use in SPECT or PET

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  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Medical Informatics (AREA)
  • Physics & Mathematics (AREA)
  • Molecular Biology (AREA)
  • High Energy & Nuclear Physics (AREA)
  • General Health & Medical Sciences (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)
  • General Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Pulmonology (AREA)
  • Theoretical Computer Science (AREA)
  • Mathematical Physics (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • Immunology (AREA)
  • Apparatus For Radiation Diagnosis (AREA)
  • Analysing Materials By The Use Of Radiation (AREA)
  • Measurement Of Radiation (AREA)
CN201280034114.7A 2011-07-12 2012-07-12 成像系统探测器校准 Active CN103648391B (zh)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US201161506816P 2011-07-12 2011-07-12
US61/506,816 2011-07-12
PCT/IB2012/053565 WO2013008198A2 (en) 2011-07-12 2012-07-12 Imaging system detector calibration

Publications (2)

Publication Number Publication Date
CN103648391A CN103648391A (zh) 2014-03-19
CN103648391B true CN103648391B (zh) 2016-08-17

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201280034114.7A Active CN103648391B (zh) 2011-07-12 2012-07-12 成像系统探测器校准

Country Status (5)

Country Link
US (1) US9268046B2 (https=)
EP (1) EP2731504B1 (https=)
JP (1) JP6114745B2 (https=)
CN (1) CN103648391B (https=)
WO (1) WO2013008198A2 (https=)

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014153561A1 (en) * 2013-03-22 2014-09-25 New York University Computer accessible medium for modulating x-ray beam intensity
JP2014210047A (ja) * 2013-04-18 2014-11-13 株式会社東芝 Ｘ線ｃｔ装置
US9903964B2 (en) * 2014-05-02 2018-02-27 Koninklike Philips N.V. Method to calibrate a photon detector, absorption filter assembly and imaging apparatus
CN103951223B (zh) * 2014-05-08 2016-05-04 宁波大学 稀土离子掺杂的Ba2CsI5微晶玻璃及其制备方法
CN106687045B (zh) * 2014-10-22 2019-08-13 株式会社日立制作所 数据处理装置、x射线ct装置以及参考校正方法
JP6464269B2 (ja) * 2014-12-15 2019-02-06 コーニンクレッカ フィリップス エヌ ヴェＫｏｎｉｎｋｌｉｊｋｅ Ｐｈｉｌｉｐｓ Ｎ．Ｖ． Ｐｅｔシステム、デッドタイム補正因子の算出方法
DE102015202999B4 (de) * 2015-02-19 2019-12-05 Siemens Healthcare Gmbh Automatisierte Justierung von Signalanalyseparametern für Röntgendetektoren
WO2017067817A1 (en) 2015-10-20 2017-04-27 Koninklijke Philips N.V. Polarization correction for direct conversion x-ray detectors
US10226221B2 (en) * 2016-08-30 2019-03-12 Toshiba Medical Systems Corporation Medical image processing method and apparatus
JP6890943B2 (ja) * 2016-10-06 2021-06-18 キヤノンメディカルシステムズ株式会社 放射線診断装置及び方法
WO2018077707A1 (en) * 2016-10-28 2018-05-03 Koninklijke Philips N.V. Automatic ct detection and visualization of active bleeding and blood extravasation
CN107015267B (zh) * 2017-06-09 2018-10-09 河北格物仪器设备有限公司 探测器增益校正系统及方法
JP6897775B2 (ja) * 2017-07-31 2021-07-07 株式会社島津製作所 放射線検出器および核医学診断装置
US10898159B2 (en) * 2019-01-11 2021-01-26 General Electric Company X-ray imaging system use and calibration
US11547378B2 (en) 2019-07-11 2023-01-10 Canon Medical Systems Corporation Apparatus and method combining deep learning (DL) with an X-ray computed tomography (CT) scanner having a multi-resolution detector
US11490872B2 (en) * 2020-08-21 2022-11-08 GE Precision Healthcare LLC C-arm imaging system and method
WO2024059662A2 (en) * 2022-09-16 2024-03-21 Rapiscan Holdings, Inc. Systems and methods for generating high-energy three-dimensional computed tomography images of bulk materials
CN118415666A (zh) * 2023-01-31 2024-08-02 通用电气精准医疗有限责任公司 X射线球管的校正方法及装置
CN116612037B (zh) * 2023-05-30 2026-04-14 北京航星机器制造有限公司 用于安检系统的图像生成方法及系统
US20260033791A1 (en) * 2024-07-30 2026-02-05 Canon Medical Systems Corporation Detector response correction method and apparatus for a photon counting x-ray imaging system

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1989904A (zh) * 2005-12-28 2007-07-04 株式会社日立制作所 核医学诊断装置
CN101080653A (zh) * 2004-12-17 2007-11-28 皇家飞利浦电子股份有限公司 用于连续探测器修正的脉冲x射线
CN102089647A (zh) * 2008-04-01 2011-06-08 皇家飞利浦电子股份有限公司 光谱探测器的校准

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5365683A (en) * 1976-11-25 1978-06-12 Toshiba Corp Inspector for radioactive rays
US4472823A (en) 1982-03-17 1984-09-18 U.S. Philips Corporation Computed tomography apparatus with detector sensitivity correction
JPH0938075A (ja) * 1995-07-27 1997-02-10 Shimadzu Corp 放射線撮像装置
US5828719A (en) * 1996-12-23 1998-10-27 General Electric Company Methods and apparatus for modulating data acquisition system gain
US6064068A (en) 1997-06-11 2000-05-16 Institute Of Geological & Nuclear Sciences Ltd. System and method for monitoring the stability of a scintillation detector
US6075835A (en) * 1998-08-25 2000-06-13 General Electric Company Methods and apparatus for imaging system quality readiness check
DE60132826T2 (de) 2001-10-01 2009-02-05 Koninklijke Philips Electronics N.V. Verfahren und vorrichtung zum kalibrieren von röntgenstrahlendetektoren in einem computer tomographischen abbildungssystem
US7224763B2 (en) * 2004-07-27 2007-05-29 Analogic Corporation Method of and system for X-ray spectral correction in multi-energy computed tomography
US7602951B2 (en) * 2005-03-14 2009-10-13 General Electric Company Method and system for providing defective cell correction in a medical imaging device
EP1902424B1 (en) 2005-07-08 2009-11-11 Wisconsin Alumni Research Foundation Highly constrained image reconstruction method
US7755057B2 (en) * 2007-03-07 2010-07-13 General Electric Company CT gantry mounted radioactive source loader for PET calibration
CN105717532B (zh) 2007-04-12 2019-07-26 皇家飞利浦电子股份有限公司 闪烁体的空间增益分布的确定
WO2009082419A1 (en) 2007-12-20 2009-07-02 Wisconsin Alumni Research Foundation Method for dynamic prior image constrained image reconstruction
US8374413B2 (en) 2007-12-20 2013-02-12 Wisconsin Alumni Research Foundation Method for prior image constrained image reconstruction
US8958524B2 (en) * 2013-01-31 2015-02-17 Analogic Corporation Correction of projection data in radiation system

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101080653A (zh) * 2004-12-17 2007-11-28 皇家飞利浦电子股份有限公司 用于连续探测器修正的脉冲x射线
CN1989904A (zh) * 2005-12-28 2007-07-04 株式会社日立制作所 核医学诊断装置
CN102089647A (zh) * 2008-04-01 2011-06-08 皇家飞利浦电子股份有限公司 光谱探测器的校准

Also Published As

Publication number Publication date
US9268046B2 (en) 2016-02-23
EP2731504A2 (en) 2014-05-21
CN103648391A (zh) 2014-03-19
WO2013008198A3 (en) 2013-03-28
US20140140469A1 (en) 2014-05-22
JP6114745B2 (ja) 2017-04-12
JP2014518147A (ja) 2014-07-28
WO2013008198A2 (en) 2013-01-17
EP2731504B1 (en) 2016-04-27

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