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)

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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
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
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
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CN103645494B (zh) * 2011-12-30 2016-04-06 同方威视技术股份有限公司 测量加速器射线束的能量的方法
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
CN105452804B (zh) * 2013-05-10 2019-01-15 株式会社尼康 X线装置及构造物的制造方法
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
CN107209130B (zh) * 2015-02-09 2021-07-09 株式会社尼康 X射线测量设备及其图像重建方法、结构物制造方法
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
CN109069091B (zh) 2016-09-08 2020-04-14 皇家飞利浦有限公司 用于多材料分解的装置
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
CN118425203A (zh) * 2024-04-22 2024-08-02 中国医学科学院北京协和医院 一种双能谱材料分解校准模体及方法

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Also Published As

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

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