IL140572A - Methods and device for multi-sectional computed tomography with helical reconstruction on a slope - Google Patents

Methods and device for multi-sectional computed tomography with helical reconstruction on a slope

Info

Publication number
IL140572A
IL140572A IL14057200A IL14057200A IL140572A IL 140572 A IL140572 A IL 140572A IL 14057200 A IL14057200 A IL 14057200A IL 14057200 A IL14057200 A IL 14057200A IL 140572 A IL140572 A IL 140572A
Authority
IL
Israel
Prior art keywords
fourier transform
projection data
accordance
phase shift
projection
Prior art date
Application number
IL14057200A
Other languages
English (en)
Hebrew (he)
Other versions
IL140572A0 (en
Original Assignee
Gen Electric
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 Gen Electric filed Critical Gen Electric
Publication of IL140572A0 publication Critical patent/IL140572A0/xx
Publication of IL140572A publication Critical patent/IL140572A/en

Links

Classifications

    • 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
    • A61B6/02—Arrangements for diagnosis sequentially in different planes; Stereoscopic radiation diagnosis
    • A61B6/027—Arrangements for diagnosis sequentially in different planes; Stereoscopic radiation diagnosis characterised by the use of a particular data acquisition trajectory, e.g. helical or spiral
    • 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
    • A61B6/583—Calibration using calibration phantoms
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T2211/00—Image generation
    • G06T2211/40—Computed tomography
    • G06T2211/421—Filtered back projection [FBP]
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S378/00—X-ray or gamma ray systems or devices
    • Y10S378/901—Computer tomography program or processor

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Medical Informatics (AREA)
  • Optics & Photonics (AREA)
  • Heart & Thoracic Surgery (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Theoretical Computer Science (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • General Physics & Mathematics (AREA)
  • Pathology (AREA)
  • Radiology & Medical Imaging (AREA)
  • Biomedical Technology (AREA)
  • Biophysics (AREA)
  • Molecular Biology (AREA)
  • Surgery (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Apparatus For Radiation Diagnosis (AREA)
IL14057200A 1999-12-28 2000-12-26 Methods and device for multi-sectional computed tomography with helical reconstruction on a slope IL140572A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US09/473,341 US6332013B1 (en) 1999-12-28 1999-12-28 Methods and apparatus for tilted helical reconstruction multislice CT

Publications (2)

Publication Number Publication Date
IL140572A0 IL140572A0 (en) 2002-02-10
IL140572A true IL140572A (en) 2004-08-31

Family

ID=23879152

Family Applications (1)

Application Number Title Priority Date Filing Date
IL14057200A IL140572A (en) 1999-12-28 2000-12-26 Methods and device for multi-sectional computed tomography with helical reconstruction on a slope

Country Status (5)

Country Link
US (1) US6332013B1 (enExample)
EP (1) EP1113397A2 (enExample)
JP (1) JP2001218764A (enExample)
CN (1) CN1225716C (enExample)
IL (1) IL140572A (enExample)

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6704392B2 (en) * 2001-07-03 2004-03-09 Ge Medical Systems Global Technology Company, Llc X-ray tube and method having tilted rotation axis
JP4175791B2 (ja) * 2001-08-20 2008-11-05 ジーイー・メディカル・システムズ・グローバル・テクノロジー・カンパニー・エルエルシー 画像生成方法およびｘ線ｃｔ装置
US6587537B1 (en) 2002-04-01 2003-07-01 Ge Medical Systems Global Technology Company, Llc Methods and apparatus for multi-slice image reconstruction
US6751283B2 (en) * 2002-08-06 2004-06-15 Koninklijke Philips Electronics, N.V. Reconstruction method for tilted-gantry computed tomography
US6904117B2 (en) * 2002-10-30 2005-06-07 Toshiba Corporation Tilted gantry helical cone-beam Feldkamp reconstruction for multislice CT
US6647084B1 (en) 2002-11-11 2003-11-11 Ge Medical Systems Global Technology Company, Llc Method and apparatus for filtering projection data of a helical scan
US7239730B2 (en) * 2003-01-29 2007-07-03 Ge Medical Systems Global Technology Company, Llc Method and apparatus for volume scoring calcification concentrations of a CT scan
JP4409223B2 (ja) * 2003-07-24 2010-02-03 東芝医用システムエンジニアリング株式会社 Ｘ線ｃｔ装置及びｘ線ｃｔ用逆投影演算方法
US6977984B2 (en) * 2003-10-07 2005-12-20 Ge Medical Systems Global Technology Company, Llc Methods and apparatus for dynamical helical scanned image production
US7076029B2 (en) * 2003-10-27 2006-07-11 General Electric Company Method and apparatus of radiographic imaging with an energy beam tailored for a subject to be scanned
CN100443053C (zh) * 2005-04-29 2008-12-17 Ge医疗系统环球技术有限公司 信号处理方法与装置以及x射线ct装置
US7344306B2 (en) * 2005-06-30 2008-03-18 General Electric Company Systems and methods for compensating for table sag
JP4611168B2 (ja) * 2005-10-07 2011-01-12 ジーイー・メディカル・システムズ・グローバル・テクノロジー・カンパニー・エルエルシー 画像再構成方法、およびｘ線ｃｔ装置
CN100401983C (zh) * 2005-10-27 2008-07-16 上海交通大学 基于双源双螺旋多层螺旋ct的重建方法
JP2007236662A (ja) * 2006-03-09 2007-09-20 Ge Medical Systems Global Technology Co Llc Ｘ線ｃｔ装置およびそのｘ線ｃｔ画像再構成方法、ｘ線ｃｔ画像撮影方法。
EP2036498A1 (en) * 2006-06-22 2009-03-18 Tohoku University X-ray ct device, and image reconfiguration method and image reconfiguration program for the device
US8224056B2 (en) * 2009-12-15 2012-07-17 General Electronic Company Method for computed tomography motion estimation and compensation
CN114140544B (zh) * 2021-10-26 2024-12-27 上海东软医疗科技有限公司 图像重建方法、装置及设备

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19626095C2 (de) * 1996-06-28 2001-02-08 Siemens Ag Computertomograph
WO1999001736A2 (en) * 1997-07-01 1999-01-14 Analogic Corporation Improved helical scan computed tomography detector geometry
CN1336811A (zh) * 1997-10-10 2002-02-20 模拟技术公司 计算层析扫描目标探测
US6061420A (en) * 1998-08-25 2000-05-09 General Electric Company Methods and apparatus for graphical Rx in a multislice imaging system
US6229869B1 (en) * 1998-08-25 2001-05-08 General Electric Company Tilted gantry image correction for a multislice computed tomography system

Also Published As

Publication number Publication date
CN1304036A (zh) 2001-07-18
EP1113397A2 (en) 2001-07-04
CN1225716C (zh) 2005-11-02
JP2001218764A (ja) 2001-08-14
US6332013B1 (en) 2001-12-18
IL140572A0 (en) 2002-02-10

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