CN101542316A - 利用相关的光子数和能量测量的谱计算机断层摄影 - Google Patents
利用相关的光子数和能量测量的谱计算机断层摄影 Download PDFInfo
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- CN101542316A CN101542316A CN200780043937.5A CN200780043937A CN101542316A CN 101542316 A CN101542316 A CN 101542316A CN 200780043937 A CN200780043937 A CN 200780043937A CN 101542316 A CN101542316 A CN 101542316A
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- 238000005259 measurement Methods 0.000 title claims description 23
- 238000002591 computed tomography Methods 0.000 title abstract description 11
- 230000003595 spectral effect Effects 0.000 title description 3
- 230000002596 correlated effect Effects 0.000 title 1
- 230000005855 radiation Effects 0.000 claims abstract description 8
- 230000004044 response Effects 0.000 claims description 22
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- 238000007689 inspection Methods 0.000 claims description 16
- 238000001514 detection method Methods 0.000 claims description 15
- 238000005070 sampling Methods 0.000 claims description 10
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Images
Classifications
-
- 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)
-
- 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
Abstract
Description
Claims (29)
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US86785606P | 2006-11-30 | 2006-11-30 | |
US60/867,856 | 2006-11-30 | ||
PCT/IB2007/054610 WO2008065564A2 (en) | 2006-11-30 | 2007-11-13 | Spectral computed tomography using correlated photon number and energy measurements |
Publications (2)
Publication Number | Publication Date |
---|---|
CN101542316A true CN101542316A (zh) | 2009-09-23 |
CN101542316B CN101542316B (zh) | 2013-03-27 |
Family
ID=39433712
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN200780043937.5A Active CN101542316B (zh) | 2006-11-30 | 2007-11-13 | 利用相关的光子数和能量测量的谱计算机断层摄影 |
Country Status (6)
Country | Link |
---|---|
US (1) | US7894576B2 (zh) |
EP (1) | EP2100167A2 (zh) |
JP (1) | JP2010511169A (zh) |
CN (1) | CN101542316B (zh) |
RU (1) | RU2009124895A (zh) |
WO (1) | WO2008065564A2 (zh) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102725659A (zh) * | 2009-12-01 | 2012-10-10 | 原子能和能源替代品委员会 | X射线探测器的校准方法 |
CN104471441A (zh) * | 2012-06-27 | 2015-03-25 | 皇家飞利浦有限公司 | 谱光子计数探测器 |
CN104459756A (zh) * | 2013-09-18 | 2015-03-25 | 西门子公司 | X射线辐射的检测 |
Families Citing this family (22)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102007022519A1 (de) * | 2007-05-14 | 2008-11-20 | Siemens Ag | Verfahren zur Ermittlung einzelner Quantenabsorptionsereignisse bei einem Strahlungswandler zur Wandlung einzelner Quanten einer darauf einfallenden ionisierenden Strahlung. Programmcodemittel zur Durchführung des Verfahrens, Einrichtung zur elektronischen Datenverarbeitung, Strahlungswandler und Bildgebendes Tomografiegerät |
EP2286640A1 (en) * | 2008-06-18 | 2011-02-23 | eV Products, Inc. | Count correction in a photon counting imaging system |
JP5622487B2 (ja) * | 2009-09-14 | 2014-11-12 | 株式会社東芝 | 放射線診断装置および画像再構成方法 |
JP5897262B2 (ja) * | 2011-03-08 | 2016-03-30 | 株式会社東芝 | X線コンピュータ断層撮影装置 |
US8761333B2 (en) | 2011-08-12 | 2014-06-24 | General Electric Company | Low resolution scintillating array for CT imaging and method of implementing same |
US8942341B2 (en) | 2011-09-01 | 2015-01-27 | General Electric Company | Method of dose reduction for CT imaging and apparatus for implementing same |
BR112014014638A2 (pt) * | 2011-12-19 | 2017-06-13 | Koninklijke Philips Nv | detector de raios x, método de detecção de raios x, dispositivo de raios x, processador para utilização em um dispositivo de raios x com um detector de raios x e método de processamento para utilização em um dispositivo de raios x com um detector de raios x |
WO2013093726A1 (en) * | 2011-12-21 | 2013-06-27 | Koninklijke Philips Electronics N.V. | Detection apparatus for detecting photons taking pile -up events into account |
DE102012216269A1 (de) * | 2012-09-13 | 2014-03-13 | Siemens Aktiengesellschaft | Röntgensystem und Verfahren zur Erzeugung von Bilddaten |
WO2014091278A1 (en) * | 2012-12-12 | 2014-06-19 | Koninklijke Philips N.V. | Adaptive persistent current compensation for photon counting detectors |
US9155516B2 (en) * | 2013-02-19 | 2015-10-13 | Kabushiki Kaisha Toshiba | Apparatus and method for count loss calibration of photon-counting detectors in spectral computed tomography imaging |
EP2871496B1 (en) * | 2013-11-12 | 2020-01-01 | Samsung Electronics Co., Ltd | Radiation detector and computed tomography apparatus using the same |
US9220469B2 (en) | 2013-12-31 | 2015-12-29 | General Electric Company | Systems and methods for correcting detector errors in computed tomography imaging |
US9706967B2 (en) * | 2014-03-14 | 2017-07-18 | Toshiba Medical Systems Corporation | Energy-weighted single-binning for a photon-counting detector |
US10159450B2 (en) * | 2014-10-01 | 2018-12-25 | Toshiba Medical Systems Corporation | X-ray CT apparatus including a photon-counting detector, and an image processing apparatus and an image processing method for correcting detection signals detected by the photon-counting detector |
US9375192B2 (en) * | 2014-10-14 | 2016-06-28 | Carestream Health, Inc. | Reconstruction of a cone beam scanned object |
JP2016180625A (ja) * | 2015-03-23 | 2016-10-13 | 株式会社東芝 | 放射線検出装置、入出力較正方法、及び入出力較正プログラム |
US10117626B2 (en) * | 2015-09-29 | 2018-11-06 | General Electric Company | Apparatus and method for pile-up correction in photon-counting detector |
WO2018002744A1 (en) * | 2016-06-29 | 2018-01-04 | Siemens Medical Solutions Usa, Inc. | System and method to unpile overlapping pulses |
US11071514B2 (en) * | 2018-11-16 | 2021-07-27 | Varex Imaging Corporation | Imaging system with energy sensing and method for operation |
US11344266B2 (en) * | 2019-09-16 | 2022-05-31 | Redlen Technologies, Inc. | Calibration methods for improving uniformity in X-ray photon counting detectors |
CN111158039B (zh) | 2020-01-02 | 2022-01-04 | 苏州瑞派宁科技有限公司 | 信号采样、重建方法及装置 |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4181855A (en) * | 1978-01-30 | 1980-01-01 | Beckman Instruments, Inc. | Method and apparatus for determining random coincidence count rate in a scintillation counter utilizing the coincidence technique |
US4535242A (en) * | 1983-03-03 | 1985-08-13 | Siemens Gammasonics, Inc. | Method and a circuit for processing pulses of a pulse train |
IT1198771B (it) * | 1984-01-27 | 1988-12-21 | Mario Alcidi | Metodo e dispositivo per l'abbattimento dell'effetto pile-up in contatori a scintillazione |
DE3572869D1 (en) | 1984-05-29 | 1989-10-12 | Siemens Ag | A method and circuit for processing pulses in pulse pile-up situations |
US4893015A (en) * | 1987-04-01 | 1990-01-09 | American Science And Engineering, Inc. | Dual mode radiographic measurement method and device |
US5210423A (en) * | 1989-09-22 | 1993-05-11 | Siemens Gammasonics, Inc. | Method and apparatus for unpiling pulses generated by piled-up scintillation events |
US6936822B2 (en) * | 1997-05-07 | 2005-08-30 | Board Of Regents, The University Of Texas System | Method and apparatus to prevent signal pile-up |
US6525323B1 (en) * | 2000-04-18 | 2003-02-25 | Koninklijke Philips Electronics, N.V. | Method and apparatus for improved estimation of characteristics of pulses detected by a nuclear camera |
DE10106221A1 (de) * | 2001-02-10 | 2002-08-14 | Philips Corp Intellectual Pty | Röntgendetektor mit großem Dynamikbereich |
JP4160275B2 (ja) * | 2001-05-28 | 2008-10-01 | 浜松ホトニクス株式会社 | エネルギー測定方法及び測定装置 |
US7149278B2 (en) * | 2004-09-10 | 2006-12-12 | General Electric Company | Method and system of dynamically controlling shaping time of a photon counting energy-sensitive radiation detector to accommodate variations in incident radiation flux levels |
US7439515B2 (en) * | 2005-06-17 | 2008-10-21 | Siemens Medical Solutions Usa, Inc. | Pipeline processing of pulse pile-up correction in a nuclear medicine imaging system |
WO2008040384A1 (en) * | 2006-10-04 | 2008-04-10 | Cern - European Organization For Nuclear Research | Readout circuit for use in a combined pet-ct apparatus |
-
2007
- 2007-11-13 JP JP2009538811A patent/JP2010511169A/ja not_active Withdrawn
- 2007-11-13 EP EP07849113A patent/EP2100167A2/en not_active Withdrawn
- 2007-11-13 WO PCT/IB2007/054610 patent/WO2008065564A2/en active Application Filing
- 2007-11-13 CN CN200780043937.5A patent/CN101542316B/zh active Active
- 2007-11-13 US US12/516,599 patent/US7894576B2/en active Active
- 2007-11-13 RU RU2009124895/28A patent/RU2009124895A/ru unknown
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102725659A (zh) * | 2009-12-01 | 2012-10-10 | 原子能和能源替代品委员会 | X射线探测器的校准方法 |
CN104471441A (zh) * | 2012-06-27 | 2015-03-25 | 皇家飞利浦有限公司 | 谱光子计数探测器 |
CN104459756A (zh) * | 2013-09-18 | 2015-03-25 | 西门子公司 | X射线辐射的检测 |
US9854656B2 (en) | 2013-09-18 | 2017-12-26 | Siemens Aktiengesellschaft | Detection of X-ray radiation |
CN104459756B (zh) * | 2013-09-18 | 2018-06-08 | 西门子公司 | X射线辐射的检测 |
US10104752B2 (en) | 2013-09-18 | 2018-10-16 | Siemens Healthcare Gmbh | Detection of X-ray radiation |
Also Published As
Publication number | Publication date |
---|---|
JP2010511169A (ja) | 2010-04-08 |
WO2008065564A2 (en) | 2008-06-05 |
RU2009124895A (ru) | 2011-01-10 |
EP2100167A2 (en) | 2009-09-16 |
US20100027738A1 (en) | 2010-02-04 |
US7894576B2 (en) | 2011-02-22 |
CN101542316B (zh) | 2013-03-27 |
WO2008065564A3 (en) | 2008-08-21 |
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C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
CI01 | Publication of corrected invention patent application |
Correction item: International Day of publication Correct: 20080605 False: 20080821 Number: 13 Volume: 29 |
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CI03 | Correction of invention patent |
Correction item: International Day of publication Correct: 20080605 False: 20080821 Number: 13 Page: The title page Volume: 29 |
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ERR | Gazette correction |
Free format text: CORRECT: INTERNATIONAL PROCLAMATION DATE; FROM: 2008.08.21 TO: 2008.06.05 |
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RECT | Rectification |