CN102090900B - 缓和双能量ct的低信号数据的系统和方法 - Google Patents

缓和双能量ct的低信号数据的系统和方法 Download PDF

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CN102090900B
CN102090900B CN201010601745.5A CN201010601745A CN102090900B CN 102090900 B CN102090900 B CN 102090900B CN 201010601745 A CN201010601745 A CN 201010601745A CN 102090900 B CN102090900 B CN 102090900B
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kvp
projected
data
projection
module
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CN102090900A (zh
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T·L·托思
谢强
N·钱德拉
X·吴
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GE Healthcare (China) Co.,Ltd.
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General Electric Co
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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
    • A61B6/40—Arrangements for generating radiation specially adapted for radiation diagnosis
    • A61B6/405—Source units specially adapted to modify characteristics of the beam during the data acquisition process
    • 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
    • A61B6/02—Arrangements for diagnosis sequentially in different planes; Stereoscopic radiation diagnosis
    • A61B6/03—Computed tomography [CT]
    • A61B6/032—Transmission computed tomography [CT]
    • 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
    • A61B6/40—Arrangements for generating radiation specially adapted for radiation diagnosis
    • A61B6/4035—Arrangements for generating radiation specially adapted for radiation diagnosis the source being combined with a filter or grating
    • 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
    • A61B6/44—Constructional features of apparatus for radiation diagnosis
    • A61B6/4411—Constructional features of apparatus for radiation diagnosis the apparatus being modular
    • 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
    • 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
    • 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
    • G06T11/005—Specific pre-processing for tomographic reconstruction, e.g. calibration, source positioning, rebinning, scatter correction, retrospective gating
    • 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
    • A61B6/4266—Arrangements for detecting radiation specially adapted for radiation diagnosis characterised by using a plurality of detector units
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T2211/00—Image generation
    • G06T2211/40—Computed tomography
    • G06T2211/408—Dual energy

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  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Medical Informatics (AREA)
  • Physics & Mathematics (AREA)
  • Molecular Biology (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Heart & Thoracic Surgery (AREA)
  • General Health & Medical Sciences (AREA)
  • Pathology (AREA)
  • Radiology & Medical Imaging (AREA)
  • Biomedical Technology (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Biophysics (AREA)
  • Surgery (AREA)
  • Animal Behavior & Ethology (AREA)
  • Optics & Photonics (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Theoretical Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Pulmonology (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Apparatus For Radiation Diagnosis (AREA)
  • Analysing Materials By The Use Of Radiation (AREA)
CN201010601745.5A 2009-12-11 2010-12-10 缓和双能量ct的低信号数据的系统和方法 Active CN102090900B (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US12/635901 2009-12-11
US12/635,901 US8199874B2 (en) 2009-12-11 2009-12-11 System and method of mitigating low signal data for dual energy CT

Publications (2)

Publication Number Publication Date
CN102090900A CN102090900A (zh) 2011-06-15
CN102090900B true CN102090900B (zh) 2014-10-01

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US (1) US8199874B2 (enExample)
JP (1) JP5920908B2 (enExample)
CN (1) CN102090900B (enExample)
DE (1) DE102010060989A1 (enExample)

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CN103622717B (zh) * 2013-09-30 2015-10-28 天津大学 由单源单次扫描x光ct图像生成双能x光ct图像方法
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WO2017019554A1 (en) * 2015-07-24 2017-02-02 Photo Diagnostic Systems, Inc. Method and apparatus for performing multi-energy (including dual energy) computed tomography (ct) imaging
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CN105326519B (zh) 2015-11-26 2017-03-22 上海联影医疗科技有限公司 X射线图像形成、散射成分计算以及重建的方法及装置
WO2017128892A1 (zh) 2016-01-30 2017-08-03 上海联影医疗科技有限公司 计算机断层成像伪影校正方法及系统
US10573030B2 (en) 2017-04-07 2020-02-25 Photo Diagnostic Systems, Inc. Method for artifact reduction using monoenergetic data in computed tomography
WO2019090541A1 (en) * 2017-11-08 2019-05-16 Shenzhen United Imaging Healthcare Co., Ltd. Systems and methods for correcting projection images in computed tomography image reconstruction
CN109431528B (zh) * 2017-11-08 2022-05-31 上海联影医疗科技股份有限公司 校正投影图像的系统和方法
CN109100775B (zh) * 2018-07-06 2020-05-29 郑州云海信息技术有限公司 一种双层探测器的能量谱校正方法与装置
WO2020112684A2 (en) 2018-11-30 2020-06-04 Accuray Inc. Multi-pass computed tomography scans for improved workflow and performance
US11357467B2 (en) 2018-11-30 2022-06-14 Accuray, Inc. Multi-pass computed tomography scans for improved workflow and performance
CN112712572B (zh) * 2021-01-11 2023-10-24 明峰医疗系统股份有限公司 Ct扫描设备的低信号噪声的抑制方法、系统及计算机可读存储介质
US11647975B2 (en) 2021-06-04 2023-05-16 Accuray, Inc. Radiotherapy apparatus and methods for treatment and imaging using hybrid MeV-keV, multi-energy data acquisition for enhanced imaging
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Publication number Publication date
DE102010060989A1 (de) 2011-06-16
CN102090900A (zh) 2011-06-15
US20110142312A1 (en) 2011-06-16
US8199874B2 (en) 2012-06-12
JP2011120903A (ja) 2011-06-23
JP5920908B2 (ja) 2016-05-18

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