IL96319A - Fourth generation helical scanning - Google Patents

Fourth generation helical scanning

Info

Publication number
IL96319A
IL96319A IL9631990A IL9631990A IL96319A IL 96319 A IL96319 A IL 96319A IL 9631990 A IL9631990 A IL 9631990A IL 9631990 A IL9631990 A IL 9631990A IL 96319 A IL96319 A IL 96319A
Authority
IL
Israel
Prior art keywords
data
vertex
source
detector
projection set
Prior art date
Application number
IL9631990A
Other languages
English (en)
Hebrew (he)
Other versions
IL96319A0 (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 IL96319A0 publication Critical patent/IL96319A0/xx
Publication of IL96319A publication Critical patent/IL96319A/en

Links

Classifications

    • G06T12/10—
    • 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

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Medical Informatics (AREA)
  • Physics & Mathematics (AREA)
  • Radiology & Medical Imaging (AREA)
  • Heart & Thoracic Surgery (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Veterinary Medicine (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Optics & Photonics (AREA)
  • Pathology (AREA)
  • Public Health (AREA)
  • Biomedical Technology (AREA)
  • Biophysics (AREA)
  • Molecular Biology (AREA)
  • Surgery (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Apparatus For Radiation Diagnosis (AREA)
  • Analysing Materials By The Use Of Radiation (AREA)
  • Image Processing (AREA)
  • Image Analysis (AREA)
IL9631990A 1989-11-22 1990-11-13 Fourth generation helical scanning IL96319A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/440,566 US5208746A (en) 1989-11-22 1989-11-22 Method for helical scanning with a stationary detector using rebinning and splicing to create detector vertex projection sets

Publications (2)

Publication Number Publication Date
IL96319A0 IL96319A0 (en) 1991-08-16
IL96319A true IL96319A (en) 1995-07-31

Family

ID=23749267

Family Applications (1)

Application Number Title Priority Date Filing Date
IL9631990A IL96319A (en) 1989-11-22 1990-11-13 Fourth generation helical scanning

Country Status (6)

Country Link
US (1) US5208746A (de)
EP (1) EP0430550B1 (de)
JP (1) JPH0669451B2 (de)
CA (1) CA2021621A1 (de)
DE (1) DE69033924T2 (de)
IL (1) IL96319A (de)

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5454019A (en) * 1991-03-15 1995-09-26 Hitachi, Ltd. Computed tomography system
US5383119A (en) * 1991-07-03 1995-01-17 General Electric Company Method and apparatus for acquiring complete radon data for exactly reconstructing a three dimensional computerized tomography image of a portion of an object irradiated by a cone beam source
US5524130A (en) * 1992-08-28 1996-06-04 Kabushiki Kaisha Toshiba Computed tomography apparatus
US5390112A (en) * 1993-10-04 1995-02-14 General Electric Company Three-dimensional computerized tomography scanning method and system for imaging large objects with smaller area detectors
US5491735A (en) * 1994-12-22 1996-02-13 General Electric Company Image reconstruction apparatus and method for helical scanning
US5515409A (en) * 1994-12-22 1996-05-07 General Electric Company Helical interpolative algorithm for image reconstruction in a CT system
US6264365B1 (en) 1999-10-25 2001-07-24 General Electric Company Background monitoring of CT data for existence and location of a bad detector
US6411670B1 (en) 1999-11-17 2002-06-25 General Electric Company Data rebinning to increase resolution in CT image reconstruction
US6522712B1 (en) 1999-11-19 2003-02-18 General Electric Company Reconstruction of computed tomographic images using interpolation between projection views
US6539074B1 (en) 2000-08-25 2003-03-25 General Electric Company Reconstruction of multislice tomographic images from four-dimensional data
US6452996B1 (en) 2001-03-16 2002-09-17 Ge Medical Systems Global Technology Company, Llc Methods and apparatus utilizing generalized helical interpolation algorithm
CN100571635C (zh) * 2003-09-29 2009-12-23 Ge医疗系统环球技术有限公司 图像重构、投影数据评价方法及计算x线体层照相装置
JP2006185038A (ja) * 2004-12-27 2006-07-13 Ge Medical Systems Global Technology Co Llc ４次元ラベリング装置、ｎ次元ラベリング装置、４次元空間フィルタ装置およびｎ次元空間フィルタ装置
WO2007113704A2 (en) * 2006-04-06 2007-10-11 Philips Intellectual Property & Standards Gmbh Method for reconstruction images and reconstruction system for reconstructing images
EP2411965B1 (de) * 2009-03-26 2016-01-13 Koninklijke Philips N.V. Verfahren und vorrichtung zur computertomografie-bildrekonstruktion
CN103674979B (zh) * 2012-09-19 2016-12-21 同方威视技术股份有限公司 一种行李物品ct安检系统及其探测器装置
CN111991015B (zh) * 2020-08-13 2024-04-26 上海联影医疗科技股份有限公司 三维图像拼接方法、装置、设备、系统和存储介质
WO2021213412A1 (en) 2020-04-20 2021-10-28 Shanghai United Imaging Healthcare Co., Ltd. Imaging systems and methods
CN114399761B (zh) * 2021-12-29 2024-06-14 国能铁路装备有限责任公司 转向架的叠加部件数量识别方法、装置和系统

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4284896A (en) * 1979-08-24 1981-08-18 General Electric Company Computerized tomographic reconstruction method and system utilizing reflection
JPS59111738A (ja) * 1982-12-16 1984-06-28 株式会社東芝 Ｘ線断層撮影装置
US4707822A (en) * 1985-05-09 1987-11-17 Kabushiki Kaisha Toshiba Tomographic apparatus
US4789929A (en) * 1987-05-14 1988-12-06 Hitachi Medical Corporation CT system for spirally scanning subject on a movable bed synchronized to X-ray tube revolution
NL8800321A (nl) * 1988-02-10 1989-09-01 Philips Nv Computertomografie-inrichting voor spiraalsgewijze aftasting.
JPH0728862B2 (ja) * 1989-02-13 1995-04-05 株式会社東芝 Ｃｔ装置

Also Published As

Publication number Publication date
IL96319A0 (en) 1991-08-16
EP0430550A2 (de) 1991-06-05
CA2021621A1 (en) 1991-05-23
EP0430550A3 (en) 1992-05-20
JPH03186249A (ja) 1991-08-14
DE69033924T2 (de) 2002-10-24
US5208746A (en) 1993-05-04
JPH0669451B2 (ja) 1994-09-07
EP0430550B1 (de) 2002-03-06
DE69033924D1 (de) 2002-04-11

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