JP7065792B6 - 光子カウントコンピュータ断層撮影 - Google Patents

光子カウントコンピュータ断層撮影 Download PDF

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JP7065792B6
JP7065792B6 JP2018568234A JP2018568234A JP7065792B6 JP 7065792 B6 JP7065792 B6 JP 7065792B6 JP 2018568234 A JP2018568234 A JP 2018568234A JP 2018568234 A JP2018568234 A JP 2018568234A JP 7065792 B6 JP7065792 B6 JP 7065792B6
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path length
photon count
data
photon
calibration
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JP2019520909A (ja
JP7065792B2 (ja
JP2019520909A5 (enExample
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エワルド レッスル
ロジャー ステッドマン
クリストフ ヘルマン
ローランド プロクサ
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Koninklijke Philips NV
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    • 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
    • G01T1/2921—Static instruments for imaging the distribution of radioactivity in one or two dimensions; Radio-isotope cameras
    • G01T1/2928—Static instruments for imaging the distribution of radioactivity in one or two dimensions; Radio-isotope cameras using solid state 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
    • 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
    • A61B6/4241—Arrangements for detecting radiation specially adapted for radiation diagnosis characterised by using a particular type of detector using energy resolving detectors, e.g. photon counting
    • 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
    • A61B6/482—Diagnostic techniques involving multiple energy imaging
    • 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
    • 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
    • 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
    • G01N23/06—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 measuring the absorption
    • G01N23/083—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 measuring the absorption the radiation being X-rays
    • 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
    • G01T1/17—Circuit arrangements not adapted to a particular type of detector
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T11/00—2D [Two Dimensional] image generation
    • G06T11/003—Reconstruction from projections, e.g. tomography
    • 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
    • G01N2223/30—Accessories, mechanical or electrical features
    • G01N2223/303—Accessories, mechanical or electrical features calibrating, standardising
    • 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
    • G01N2223/401—Imaging image processing
    • 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
    • G01N2223/50—Detectors
    • G01N2223/505—Detectors scintillation

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  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Medical Informatics (AREA)
  • Pathology (AREA)
  • General Health & Medical Sciences (AREA)
  • Molecular Biology (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Radiology & Medical Imaging (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • General Physics & Mathematics (AREA)
  • Animal Behavior & Ethology (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Surgery (AREA)
  • Biophysics (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Biomedical Technology (AREA)
  • Optics & Photonics (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • Theoretical Computer Science (AREA)
  • Immunology (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Toxicology (AREA)
  • Pulmonology (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • Apparatus For Radiation Diagnosis (AREA)
  • Image Processing (AREA)
  • Measurement Of Radiation (AREA)
JP2018568234A 2016-06-29 2017-06-29 光子カウントコンピュータ断層撮影 Active JP7065792B6 (ja)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP16176936 2016-06-29
EP16176936.9 2016-06-29
PCT/EP2017/066139 WO2018002226A1 (en) 2016-06-29 2017-06-29 Photon-counting computed tomography

Publications (4)

Publication Number Publication Date
JP2019520909A JP2019520909A (ja) 2019-07-25
JP2019520909A5 JP2019520909A5 (enExample) 2020-08-06
JP7065792B2 JP7065792B2 (ja) 2022-05-12
JP7065792B6 true JP7065792B6 (ja) 2022-06-06

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US (1) US10980506B2 (enExample)
EP (1) EP3479145B1 (enExample)
JP (1) JP7065792B6 (enExample)
CN (1) CN109416405B (enExample)
WO (1) WO2018002226A1 (enExample)

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WO2019113440A1 (en) * 2017-12-08 2019-06-13 Rensselaer Polytechnic Institute A neural network-based corrector for photon counting detectors
EP3667370A1 (en) 2018-12-11 2020-06-17 Koninklijke Philips N.V. Energy weighting of photon counts for conventional imaging
US10679385B1 (en) * 2018-12-17 2020-06-09 General Electric Company System and method for statistical iterative reconstruction and material decomposition
JP7309385B2 (ja) * 2019-02-28 2023-07-18 富士フイルムヘルスケア株式会社 光子計数型検出器の較正方法
CN110226943B (zh) * 2019-07-05 2023-08-15 上海联影医疗科技股份有限公司 光子到达探测器的参数计算方法、装置和计算机设备
US11013487B2 (en) 2019-10-18 2021-05-25 Canon Medical Systems Corporation Method and apparatus for computed tomography (CT) and material decomposition with count-rate dependent pileup correction
CN110967777B (zh) * 2019-12-23 2022-08-23 宁波飞芯电子科技有限公司 相干探测接收装置、退相干处理方法、设备及介质
EP3842839A1 (en) * 2019-12-27 2021-06-30 Koninklijke Philips N.V. Compensation of polarization effects in photon counting detectors
JP7440271B2 (ja) * 2020-01-10 2024-02-28 富士フイルムヘルスケア株式会社 放射線撮像装置および光子計数型検出器の較正方法
KR102767577B1 (ko) * 2020-02-05 2025-02-13 프리스매틱 센서즈 에이비 광자 카운팅 x-선 검출기에 대한 총 임계 초과 시간(ttot) 프로세싱
US11353411B2 (en) * 2020-06-01 2022-06-07 GE Precision Healthcare LLC Methods and systems for multi-material decomposition
DE112021005839T5 (de) * 2020-12-09 2023-08-17 Ams International Ag Elektrische schaltung zur extraktion der baseline in einem photonenzählsystem
US11944484B2 (en) 2021-03-31 2024-04-02 Canon Medical Systems Corporation Material decomposition calibration method and apparatus for a full size photon counting CT system
US12446845B2 (en) * 2023-01-09 2025-10-21 GE Precision Healthcare LLC Systems and methods for CT image reconstruction

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JP2005241294A (ja) 2004-02-24 2005-09-08 Hitachi Ltd 透視撮像方法および装置
JP2009513220A (ja) 2005-10-28 2009-04-02 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 分光コンピュータ断層撮影の方法および装置
WO2015197786A1 (en) 2014-06-27 2015-12-30 Koninklijke Philips N.V. Spectral material decomposition for photon-counting applications

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JP3018439B2 (ja) * 1990-08-31 2000-03-13 株式会社島津製作所 シンチレーションカメラ
JP3446327B2 (ja) * 1994-08-31 2003-09-16 株式会社島津製作所 放射線撮像装置
CN101680956B (zh) 2007-06-19 2013-02-13 皇家飞利浦电子股份有限公司 用于多谱光子计数读出电路的数字脉冲处理
DE102008048306B4 (de) 2008-09-22 2016-06-09 Siemens Healthcare Gmbh Verfahren zur Detektion von Röntgenstrahlung und Röntgensystem
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
EP3088918A3 (en) * 2012-03-27 2017-01-18 Koninklijke Philips N.V. Conventional imaging with an imaging system having photon counting detectors
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DE102013200021B4 (de) * 2013-01-02 2016-01-28 Siemens Aktiengesellschaft Verfahren zur Kalibrierung eines zählenden digitalen Röntgendetektors, Röntgensysteme zur Durchführung eines solchen Verfahrens und Verfahren zur Aufnahme eines Röntgenbildes
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JP2009513220A (ja) 2005-10-28 2009-04-02 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 分光コンピュータ断層撮影の方法および装置
WO2015197786A1 (en) 2014-06-27 2015-12-30 Koninklijke Philips N.V. Spectral material decomposition for photon-counting applications

Also Published As

Publication number Publication date
JP2019520909A (ja) 2019-07-25
JP7065792B2 (ja) 2022-05-12
EP3479145A1 (en) 2019-05-08
CN109416405B (zh) 2023-07-11
US10980506B2 (en) 2021-04-20
WO2018002226A1 (en) 2018-01-04
EP3479145B1 (en) 2022-01-26
CN109416405A (zh) 2019-03-01
US20200390413A1 (en) 2020-12-17

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