PL1970731T3 - Sposób kalibrowania układu TK podwójnej energii oraz sposób rekonstrukcji obrazu - Google Patents

Sposób kalibrowania układu TK podwójnej energii oraz sposób rekonstrukcji obrazu

Info

Publication number
PL1970731T3
PL1970731T3 PL08250858T PL08250858T PL1970731T3 PL 1970731 T3 PL1970731 T3 PL 1970731T3 PL 08250858 T PL08250858 T PL 08250858T PL 08250858 T PL08250858 T PL 08250858T PL 1970731 T3 PL1970731 T3 PL 1970731T3
Authority
PL
Poland
Prior art keywords
energy
image reconstruction
calibrating dual
calibrating
dual
Prior art date
Application number
PL08250858T
Other languages
English (en)
Inventor
Li Zhang
Zhiqiang Chen
Guowei Zhang
Jianping Cheng
Yuanjing Li
Yinong Liu
Yuxiang Xing
Ziran Zhao
Yongshun Xiao
Original Assignee
Tsinghua University
Nuctech Company Limited
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 Tsinghua University, Nuctech Company Limited filed Critical Tsinghua University
Publication of PL1970731T3 publication Critical patent/PL1970731T3/pl

Links

Classifications

    • 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
    • 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
    • G01T1/161—Applications in the field of nuclear medicine, e.g. in vivo counting
    • G01T1/164—Scintigraphy
    • G01T1/1641—Static instruments for imaging the distribution of radioactivity in one or two dimensions using one or several scintillating elements; Radio-isotope cameras
    • G01T1/1648—Ancillary equipment for scintillation cameras, e.g. reference markers, devices for removing motion artifacts, calibration devices

Landscapes

  • Health & Medical Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Molecular Biology (AREA)
  • High Energy & Nuclear Physics (AREA)
  • General Physics & Mathematics (AREA)
  • Biomedical Technology (AREA)
  • Optics & Photonics (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Medical Informatics (AREA)
  • General Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Analysing Materials By The Use Of Radiation (AREA)
  • Apparatus For Radiation Diagnosis (AREA)
PL08250858T 2007-03-14 2008-03-14 Sposób kalibrowania układu TK podwójnej energii oraz sposób rekonstrukcji obrazu PL1970731T3 (pl)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CNA2007100643913A CN101266216A (zh) 2007-03-14 2007-03-14 标定双能ct系统的方法和图像重建方法

Publications (1)

Publication Number Publication Date
PL1970731T3 true PL1970731T3 (pl) 2017-09-29

Family

ID=39545057

Family Applications (1)

Application Number Title Priority Date Filing Date
PL08250858T PL1970731T3 (pl) 2007-03-14 2008-03-14 Sposób kalibrowania układu TK podwójnej energii oraz sposób rekonstrukcji obrazu

Country Status (6)

Country Link
US (1) US7881424B2 (pl)
EP (1) EP1970731B1 (pl)
CN (1) CN101266216A (pl)
DK (1) DK1970731T3 (pl)
ES (1) ES2626227T3 (pl)
PL (1) PL1970731T3 (pl)

Families Citing this family (45)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101647706B (zh) * 2008-08-13 2012-05-30 清华大学 高能双能ct系统的图象重建方法
WO2010028027A1 (en) * 2008-09-03 2010-03-11 Mayo Foundation For Medical Education And Research Method for reconstruction in dual energy, dual source helical computed tomography
US8260023B2 (en) * 2008-11-26 2012-09-04 General Electric Company Forward projection for the generation of computed tomography images at arbitrary spectra
US8232748B2 (en) * 2009-01-26 2012-07-31 Accuray, Inc. Traveling wave linear accelerator comprising a frequency controller for interleaved multi-energy operation
US8050479B2 (en) * 2009-02-26 2011-11-01 General Electric Company Method and system for generating a computed tomography image
DE102009017615A1 (de) * 2009-04-16 2010-12-30 Siemens Aktiengesellschaft Verfahren und Bildrekonstruktionseinrichtung zur Erzeugung von radiologischen Bilddaten
CN101900695B (zh) * 2009-05-27 2011-11-23 清华大学 伪双能欠采样物质识别系统和方法
US8203289B2 (en) * 2009-07-08 2012-06-19 Accuray, Inc. Interleaving multi-energy x-ray energy operation of a standing wave linear accelerator using electronic switches
US8311187B2 (en) 2010-01-29 2012-11-13 Accuray, Inc. Magnetron powered linear accelerator for interleaved multi-energy operation
US8284898B2 (en) * 2010-03-05 2012-10-09 Accuray, Inc. Interleaving multi-energy X-ray energy operation of a standing wave linear accelerator
US8693634B2 (en) * 2010-03-19 2014-04-08 Hologic Inc System and method for generating enhanced density distribution in a three dimensional model of a structure for use in skeletal assessment using a limited number of two-dimensional views
US8315352B2 (en) * 2010-09-16 2012-11-20 General Electric Company System and method of spectral calibration and basis material decomposition for X-ray CT systems
US9258876B2 (en) 2010-10-01 2016-02-09 Accuray, Inc. Traveling wave linear accelerator based x-ray source using pulse width to modulate pulse-to-pulse dosage
US8942351B2 (en) 2010-10-01 2015-01-27 Accuray Incorporated Systems and methods for cargo scanning and radiotherapy using a traveling wave linear accelerator based X-ray source using pulse width to modulate pulse-to-pulse dosage
US8836250B2 (en) 2010-10-01 2014-09-16 Accuray Incorporated Systems and methods for cargo scanning and radiotherapy using a traveling wave linear accelerator based x-ray source using current to modulate pulse-to-pulse dosage
US9167681B2 (en) 2010-10-01 2015-10-20 Accuray, Inc. Traveling wave linear accelerator based x-ray source using current to modulate pulse-to-pulse dosage
CN102053096B (zh) * 2010-11-04 2013-02-13 公安部第一研究所 双能量x射线安全检查设备的材料校准系统及校准方法
CN103185891B (zh) * 2011-12-30 2016-06-08 同方威视技术股份有限公司 加速器射线束精确测量设备
CN103900931B (zh) * 2012-12-26 2017-04-26 首都师范大学 一种多能谱ct成像方法及成像系统
WO2014181478A1 (ja) * 2013-05-10 2014-11-13 株式会社ニコン Ｘ線装置及び構造物の製造方法
CN104422704B (zh) * 2013-08-21 2017-07-25 同方威视技术股份有限公司 对x光能谱ct的能谱信息进行分解的方法和对应的重建方法
CN103559729B (zh) * 2013-11-18 2016-07-06 首都师范大学 一种双能谱ct图像迭代重建方法
CN103729868A (zh) * 2014-01-07 2014-04-16 天津大学 基于双能ct扫描数据重建投影图像检测方法
CN105277578B (zh) * 2014-06-09 2018-06-12 北京君和信达科技有限公司 一种提高双能辐射系统材料识别能力的方法及系统
CN104091329B (zh) * 2014-06-25 2017-02-15 清华大学 一种ct图像的标定方法、装置和一种ct系统
JP5876116B1 (ja) * 2014-08-11 2016-03-02 株式会社イシダ Ｘ線検査装置
CN105759300A (zh) * 2014-12-18 2016-07-13 深圳市贝斯达医疗股份有限公司 一种可调双能峰产生装置
CN105806856B (zh) 2014-12-30 2019-02-19 清华大学 双能射线成像方法和系统
EP3258251B1 (en) * 2015-02-09 2021-03-24 Nikon Corporation Image reconstruction method for x-ray measurement device, method for manufacturing structure, image reconstruction program for x-ray measurement device, and x-ray measurement device
CN105759319A (zh) * 2015-03-06 2016-07-13 公安部第研究所 一种改进的双能ct成像方法及装置
CN106353828B (zh) * 2015-07-22 2018-09-21 清华大学 在安检系统中估算被检查物体重量的方法和装置
CN105223214B (zh) * 2015-10-22 2019-01-11 同方威视技术股份有限公司 用于物质分辨的标定装置、标定方法和标定系统
CN105447832B (zh) * 2015-12-14 2018-03-02 天津三英精密仪器有限公司 一种基于探测器单元标定的ct图像伪影校正方法及应用
CN105675042B (zh) * 2015-12-28 2018-08-10 同方威视技术股份有限公司 射线标定装置及其操作方法、辐射成像系统及其操作方法
CN107356615B (zh) * 2016-05-10 2020-01-21 清华大学 一种用于双能x射线ct的方法和系统
WO2018046328A1 (en) 2016-09-08 2018-03-15 Koninklijke Philips N.V. Apparatus for multi material decomposition
DE102018201967A1 (de) * 2018-02-08 2019-08-08 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Verfahren zum Auswerten einer Multi-Energie-Röntgen-Aufnahme mittels einer Basismaterialzerlegung
CN108957515B (zh) * 2018-09-18 2020-09-08 上海联影医疗科技有限公司 确定探测器的能量响应函数的方法、装置和成像系统
WO2020077592A1 (zh) * 2018-10-18 2020-04-23 清华大学 Ct系统能谱不一致性的校正方法
WO2020206656A1 (zh) * 2019-04-11 2020-10-15 清华大学 多能量ct基材料物质分解方法
CN110731788B (zh) * 2019-07-18 2023-10-20 天津大学 一种基于双能ct扫描仪对基物质进行快速分解的方法
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
CN111366982A (zh) * 2020-03-10 2020-07-03 上海英曼尼安全装备有限公司 一种双能ct系统的探测器装置、双能ct系统及图像重建方法
CN111624644A (zh) * 2020-06-11 2020-09-04 北京卫星环境工程研究所 一种三维位置灵敏探测器及其能量校正方法
CN115078214B (zh) * 2022-06-14 2024-01-26 西南石油大学 基于双能ct的岩心矿物识别及孔隙度分布联合表征方法

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5155365A (en) * 1990-07-09 1992-10-13 Cann Christopher E Emission-transmission imaging system using single energy and dual energy transmission and radionuclide emission data
US5319547A (en) * 1990-08-10 1994-06-07 Vivid Technologies, Inc. Device and method for inspection of baggage and other objects
US6570955B1 (en) * 2002-01-08 2003-05-27 Cyberlogic, Inc. Digital x-ray material testing and bone densitometry apparatus and method
US6904118B2 (en) * 2002-07-23 2005-06-07 General Electric Company Method and apparatus for generating a density map using dual-energy CT
US7190757B2 (en) * 2004-05-21 2007-03-13 Analogic Corporation Method of and system for computing effective atomic number images in multi-energy computed tomography
US20090129539A1 (en) * 2007-11-21 2009-05-21 General Electric Company Computed tomography method and system

Also Published As

Publication number Publication date
EP1970731A2 (en) 2008-09-17
DK1970731T3 (en) 2017-06-06
US20080310598A1 (en) 2008-12-18
CN101266216A (zh) 2008-09-17
ES2626227T3 (es) 2017-07-24
EP1970731B1 (en) 2017-03-01
US7881424B2 (en) 2011-02-01
EP1970731A3 (en) 2013-01-02

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