CN109416405B - 光子计数计算机断层摄影 - Google Patents

光子计数计算机断层摄影 Download PDF

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CN109416405B
CN109416405B CN201780040078.8A CN201780040078A CN109416405B CN 109416405 B CN109416405 B CN 109416405B CN 201780040078 A CN201780040078 A CN 201780040078A CN 109416405 B CN109416405 B CN 109416405B
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path length
data
photon
curves
detector
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CN109416405A (zh
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E·勒斯尔
R·斯特德曼
C·赫尔曼
R·普罗克绍
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Koninklijke Philips NV
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    • 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
    • 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
    • A61B6/42—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
    • G06T12/00—Tomographic reconstruction from projections
    • 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)
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  • General Health & Medical Sciences (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Molecular Biology (AREA)
  • Radiology & Medical Imaging (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • General Physics & Mathematics (AREA)
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  • Veterinary Medicine (AREA)
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  • Biochemistry (AREA)
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  • Theoretical Computer Science (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • Pulmonology (AREA)
  • Toxicology (AREA)
  • Apparatus For Radiation Diagnosis (AREA)
  • Image Processing (AREA)
  • Measurement Of Radiation (AREA)
CN201780040078.8A 2016-06-29 2017-06-29 光子计数计算机断层摄影 Active CN109416405B (zh)

Applications Claiming Priority (3)

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

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CN109416405B true CN109416405B (zh) 2023-07-11

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US (1) US10980506B2 (https=)
EP (1) EP3479145B1 (https=)
JP (1) JP7065792B6 (https=)
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WO (1) WO2018002226A1 (https=)

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US11448778B2 (en) * 2017-12-08 2022-09-20 Rensselaer Polytechnic Institute 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
EP3838154A1 (en) * 2019-12-16 2021-06-23 Koninklijke Philips N.V. Apparatus for generating photon counting spectral image data
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
CN115427839B (zh) * 2020-02-05 2025-09-30 通用电气精准医疗有限责任公司 用于光子计数x射线检测器的总超阈值时间(ttot)处理
US11353411B2 (en) * 2020-06-01 2022-06-07 GE Precision Healthcare LLC Methods and systems for multi-material decomposition
WO2022122545A1 (en) * 2020-12-09 2022-06-16 Ams International Ag Electric circuitry for baseline extraction in a photon counting system
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
JP2024048121A (ja) * 2022-09-27 2024-04-08 キヤノン株式会社 情報処理装置、放射線撮影システム、情報処理方法及びプログラム
US12446845B2 (en) 2023-01-09 2025-10-21 GE Precision Healthcare LLC Systems and methods for CT image reconstruction
US20250387094A1 (en) * 2024-06-19 2025-12-25 GE Precision Healthcare LLC Supporting calibration of an x-ray imaging system and adjustment of operational settings

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JP3446327B2 (ja) * 1994-08-31 2003-09-16 株式会社島津製作所 放射線撮像装置
JP2005241294A (ja) 2004-02-24 2005-09-08 Hitachi Ltd 透視撮像方法および装置
RU2414724C2 (ru) 2005-10-28 2011-03-20 Конинклейке Филипс Электроникс, Н.В. Способ и устройство для спектральной компьютерной томографии
US8338791B2 (en) 2007-06-19 2012-12-25 Koninklijke Philips Electronics N.V. Digital pulse processing for multi-spectral photon counting readout circuits
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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
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WO2018002226A1 (en) 2018-01-04
US10980506B2 (en) 2021-04-20
JP7065792B2 (ja) 2022-05-12
JP7065792B6 (ja) 2022-06-06
EP3479145B1 (en) 2022-01-26
EP3479145A1 (en) 2019-05-08
CN109416405A (zh) 2019-03-01
JP2019520909A (ja) 2019-07-25
US20200390413A1 (en) 2020-12-17

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