IL94714A0 - Method and apparatus for reducing skew image artifacts in helical projection imaging - Google Patents

Method and apparatus for reducing skew image artifacts in helical projection imaging

Info

Publication number
IL94714A0
IL94714A0 IL94714A IL9471490A IL94714A0 IL 94714 A0 IL94714 A0 IL 94714A0 IL 94714 A IL94714 A IL 94714A IL 9471490 A IL9471490 A IL 9471490A IL 94714 A0 IL94714 A0 IL 94714A0
Authority
IL
Israel
Prior art keywords
projection imaging
image artifacts
helical projection
reducing skew
skew image
Prior art date
Application number
IL94714A
Other languages
English (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 IL94714A0 publication Critical patent/IL94714A0/xx

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T3/00—Geometric image transformations in the plane of the image
    • G06T3/60—Rotation of whole images or parts thereof
    • G06T3/608—Rotation of whole images or parts thereof by skew deformation, e.g. two-pass or three-pass rotation
    • 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
    • A61B6/02—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

  • Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Medical Informatics (AREA)
  • Pathology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Pulmonology (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Optics & Photonics (AREA)
  • General Physics & Mathematics (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)
  • Magnetic Resonance Imaging Apparatus (AREA)
  • Image Processing (AREA)
IL94714A 1989-06-26 1990-06-13 Method and apparatus for reducing skew image artifacts in helical projection imaging IL94714A0 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/371,332 US5046003A (en) 1989-06-26 1989-06-26 Method for reducing skew image artifacts in helical projection imaging

Publications (1)

Publication Number Publication Date
IL94714A0 true IL94714A0 (en) 1991-04-15

Family

ID=23463526

Family Applications (1)

Application Number Title Priority Date Filing Date
IL94714A IL94714A0 (en) 1989-06-26 1990-06-13 Method and apparatus for reducing skew image artifacts in helical projection imaging

Country Status (5)

Country Link
US (1) US5046003A (fr)
EP (1) EP0405862A1 (fr)
JP (1) JPH0620451B2 (fr)
CA (1) CA2010136A1 (fr)
IL (1) IL94714A0 (fr)

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JPH0787835B2 (ja) * 1990-06-27 1995-09-27 株式会社東芝 Ｘ線断層撮影装置
JP2607749B2 (ja) * 1990-11-01 1997-05-07 株式会社東芝 Ｘ線ｃｔ装置
US5454019A (en) * 1991-03-15 1995-09-26 Hitachi, Ltd. Computed tomography system
IL98945A0 (en) * 1991-07-24 1992-07-15 Elscint Ltd Multiple slice ct scanner
DE4137031C1 (en) * 1991-11-11 1993-04-08 Siemens Ag, 8000 Muenchen, De Computer tomograph equipment providing three=dimensional scanning - relatively rotates measuring unit, consisting of X=ray radiator and radiation detector, and patient couch
JP2933107B2 (ja) * 1992-02-14 1999-08-09 株式会社東芝 Ｃｔ装置
US5357429A (en) * 1992-04-02 1994-10-18 Levy Richard A Three-dimensional model generation using multiple angle tomographic scan planes
US5224136A (en) * 1992-06-30 1993-06-29 General Electric Company Helical scanning computed tomography apparatus with constrained tracking of the x-ray source
US5386446A (en) * 1992-07-06 1995-01-31 Kabushiki Kaisha Toshiba Positional adjustment of resolution in radiation CT scanner
US5291402A (en) * 1992-08-07 1994-03-01 General Electric Company Helical scanning computed tomography apparatus
DE69334176T2 (de) 1992-08-07 2008-07-03 General Electric Co. Rechnergesteuertes Schrägspurtomographiegerät mit einer zweidimensionalen Detektoranordnung
US5524130A (en) * 1992-08-28 1996-06-04 Kabushiki Kaisha Toshiba Computed tomography apparatus
JPH06327667A (ja) * 1993-05-27 1994-11-29 Gijutsu Kenkyu Kumiai Iryo Fukushi Kiki Kenkyusho Ｘ線ｃｔ装置
DE69433045T2 (de) * 1993-11-26 2004-06-03 Kabushiki Kaisha Toshiba Computertomograph
US5740224A (en) * 1994-09-27 1998-04-14 University Of Delaware Cone beam synthetic arrays in three-dimensional computerized tomography
IL116738A0 (en) * 1995-01-23 1996-05-14 Gen Electric Detector z-axis gain correction for a ct system
US5744802A (en) * 1995-10-25 1998-04-28 Adac Laboratories Image generation from limited projections in positron emission tomography using multi-slice rebinning
WO1999040536A1 (fr) * 1998-02-10 1999-08-12 Ey Laboratories, Inc. Systeme de reflectometrie avec compensation pour topologie de supports d'echantillons et avec elimination synchrone du bruit de reseau
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
US7848790B2 (en) * 2002-02-28 2010-12-07 General Electric Company System and method of imaging using a variable speed for thorax imaging
JP4172753B2 (ja) * 2002-04-03 2008-10-29 東芝医用システムエンジニアリング株式会社 Ｘ線画像撮影装置
US6816567B2 (en) * 2002-07-15 2004-11-09 Ge Medical System Global Technology Company, Llc System and method for acquiring x-ray data
US6970531B2 (en) 2002-10-07 2005-11-29 General Electric Company Continuous scan RAD tomosynthesis system and method
DE10322139A1 (de) * 2003-05-16 2004-12-09 Siemens Ag Verfahren zur Erzeugung von CT-Bildern von einem sich zumindest teilweise zyklisch bewegenden Untersuchungsobjekt, sowie CT-Gerät zur Durchführung dieses Verfahrens
US7412029B2 (en) * 2003-06-25 2008-08-12 Varian Medical Systems Technologies, Inc. Treatment planning, simulation, and verification system
JP2005040582A (ja) * 2003-07-07 2005-02-17 Ge Medical Systems Global Technology Co Llc Ｘ線ｃｔ撮像方法およびｘ線ｃｔ装置
FR2860874A1 (fr) * 2003-10-08 2005-04-15 Gen Electric Systeme et procede de tomosynthese rad a balayage continu
US7394887B2 (en) * 2004-10-15 2008-07-01 General Electric Company Method and apparatus for reconstruction of tilted cone beam data
DE102004051170B4 (de) * 2004-10-20 2015-03-05 Siemens Aktiengesellschaft Computertomographiegerät mit gleichzeitiger kontaktloser elektrischer Übertragung von Versorgungsspannung und Mess- und Steuerdaten
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
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。
JP4322894B2 (ja) * 2006-06-20 2009-09-02 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 Ｘ線ｃｔ装置
JP5085305B2 (ja) * 2007-12-21 2012-11-28 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 Ｘ線ｃｔ装置
WO2012110982A1 (fr) 2011-02-18 2012-08-23 Koninklijke Philips Electronics N.V. Algorithme(s) de mouvement d'un support de sujet de système d'imagerie
EP2721432B1 (fr) * 2011-06-14 2019-08-21 Analogic Corporation Scanner de sécurité

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1540099A (en) * 1976-01-21 1979-02-07 Emi Ltd Radiography
DE3126643A1 (de) * 1981-07-06 1983-01-20 Siemens AG, 1000 Berlin und 8000 München "strahlendiagnostikgeraet"
JPS59111738A (ja) * 1982-12-16 1984-06-28 株式会社東芝 Ｘ線断層撮影装置
DE8703190U1 (de) * 1987-03-02 1988-06-30 Siemens AG, 1000 Berlin und 8000 München Computertomograph
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
US4899283A (en) * 1987-11-23 1990-02-06 American Science And Engineering, Inc. Tomographic apparatus including means to illuminate the bounded field of view from a plurality of directions
NL8800321A (nl) * 1988-02-10 1989-09-01 Philips Nv Computertomografie-inrichting voor spiraalsgewijze aftasting.

Also Published As

Publication number Publication date
JPH0620451B2 (ja) 1994-03-23
CA2010136A1 (fr) 1990-12-26
JPH03103229A (ja) 1991-04-30
US5046003A (en) 1991-09-03
EP0405862A1 (fr) 1991-01-02

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