DE69902326D1 - Bildkorrektur für ein geneigtes Gehäuse in einem Mehrschicht-Computertomograph - Google Patents

Bildkorrektur für ein geneigtes Gehäuse in einem Mehrschicht-Computertomograph

Info

Publication number
DE69902326D1
DE69902326D1 DE69902326T DE69902326T DE69902326D1 DE 69902326 D1 DE69902326 D1 DE 69902326D1 DE 69902326 T DE69902326 T DE 69902326T DE 69902326 T DE69902326 T DE 69902326T DE 69902326 D1 DE69902326 D1 DE 69902326D1
Authority
DE
Germany
Prior art keywords
image correction
computer tomograph
layer computer
inclined housing
housing
Prior art date
Legal status (The legal status 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 status listed.)
Expired - Lifetime
Application number
DE69902326T
Other languages
English (en)
Other versions
DE69902326T2 (de
Inventor
Hui Hu
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
General Electric Co
Original Assignee
General Electric Co
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 General Electric Co filed Critical General Electric Co
Application granted granted Critical
Publication of DE69902326D1 publication Critical patent/DE69902326D1/de
Publication of DE69902326T2 publication Critical patent/DE69902326T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • 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
    • A61B6/4429—Constructional features of apparatus for radiation diagnosis related to the mounting of source units and detector units
    • A61B6/4435—Constructional features of apparatus for radiation diagnosis related to the mounting of source units and detector units the source unit and the detector unit being coupled by a rigid structure
    • A61B6/4447—Tiltable gantries
    • 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
    • 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

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Medical Informatics (AREA)
  • Engineering & Computer Science (AREA)
  • Radiology & Medical Imaging (AREA)
  • Biomedical Technology (AREA)
  • Biophysics (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Optics & Photonics (AREA)
  • Pathology (AREA)
  • Physics & Mathematics (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Heart & Thoracic Surgery (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)
DE69902326T 1998-08-25 1999-08-20 Bildkorrektur für ein geneigtes Gehäuse in einem Mehrschicht-Computertomograph Expired - Lifetime DE69902326T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US09/140,131 US6229869B1 (en) 1998-08-25 1998-08-25 Tilted gantry image correction for a multislice computed tomography system

Publications (2)

Publication Number Publication Date
DE69902326D1 true DE69902326D1 (de) 2002-09-05
DE69902326T2 DE69902326T2 (de) 2003-03-20

Family

ID=22489896

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69902326T Expired - Lifetime DE69902326T2 (de) 1998-08-25 1999-08-20 Bildkorrektur für ein geneigtes Gehäuse in einem Mehrschicht-Computertomograph

Country Status (5)

Country Link
US (1) US6229869B1 (de)
EP (1) EP0981996B1 (de)
JP (1) JP4465062B2 (de)
DE (1) DE69902326T2 (de)
IL (1) IL131401A (de)

Families Citing this family (30)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6332013B1 (en) * 1999-12-28 2001-12-18 General Electric Company Methods and apparatus for tilted helical reconstruction multislice CT
US6463117B1 (en) * 2000-11-22 2002-10-08 Ge Medical Systems Global Technology Company, Llc Methods and apparatus for tilted helical image reconstruction in CT imaging
JP2003000585A (ja) * 2001-06-11 2003-01-07 Ge Medical Systems Global Technology Co Llc Ｘ線ｃｔシステム及びその制御方法並びに記憶媒体
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
JP4275064B2 (ja) * 2002-05-06 2009-06-10 コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ 走査長が減少された円錐ビームｃｔスキャナ
US6751283B2 (en) 2002-08-06 2004-06-15 Koninklijke Philips Electronics, N.V. Reconstruction method for tilted-gantry computed tomography
US6917666B2 (en) * 2002-12-19 2005-07-12 General Electric Company System and method for table/gantry alignment in imaging systems
JP4469555B2 (ja) * 2003-03-28 2010-05-26 株式会社東芝 Ｘ線コンピュータ断層撮影装置
CN100387195C (zh) * 2003-11-07 2008-05-14 Ge医疗***环球技术有限公司 偏移量测量方法、身体活动检测方法及x射线ct装置
US7167538B2 (en) * 2004-03-30 2007-01-23 Siemens Medical Solutions Usa, Inc. Exact volume imaging involving multiple partial scans
JP4032357B2 (ja) * 2004-05-21 2008-01-16 ソニー株式会社 画像情報処理装置および方法、並びにプログラム
JP2006000225A (ja) * 2004-06-15 2006-01-05 Canon Inc Ｘ線ｃｔ装置
JP2006055309A (ja) * 2004-08-19 2006-03-02 Ge Medical Systems Global Technology Co Llc Ｘ線ｃｔ撮影方法およびｘ線ｃｔ装置
US7394887B2 (en) * 2004-10-15 2008-07-01 General Electric Company Method and apparatus for reconstruction of tilted cone beam data
US7492856B2 (en) * 2005-12-07 2009-02-17 Ge Security, Inc. Apparatus and method for providing an orthographic projection from helical scan data
US7548604B2 (en) * 2007-01-04 2009-06-16 General Electric Company Method and apparatus for reduction of metal artifacts in CT imaging
US7983460B2 (en) * 2007-06-08 2011-07-19 General Electric Company Method and system for performing high temporal resolution bolus detection using CT image projection data
JP2009045092A (ja) * 2007-08-13 2009-03-05 Canon Inc Ｃｔ撮影装置及びその制御方法
DK2282050T3 (en) * 2009-06-30 2016-06-06 Siemens Ag Method for inspecting a wind turbine blade
CN101987020B (zh) * 2009-08-04 2014-09-17 Ge医疗***环球技术有限公司 倾斜图像扫描方法和重建方法及装置
US9084542B2 (en) * 2009-11-10 2015-07-21 General Electric Company Apparatus and methods for computed tomography imaging
US9042514B2 (en) 2012-05-18 2015-05-26 Analogic Corporation Dose reduction via dynamic collimation adjustment for targeted field of view and/or digital tilt CT
US9089266B2 (en) * 2013-04-19 2015-07-28 Kabushiki Kaisha Toshiba Tilted detector array for medical imaging systems including computed tomography
CN103218834B (zh) * 2013-04-25 2016-05-04 重庆大学 一种基于点扩展函数的工业ct图像重建中心定位方法
US10010372B1 (en) 2016-01-06 2018-07-03 Paul Beck Marker Positioning Apparatus
US10004564B1 (en) * 2016-01-06 2018-06-26 Paul Beck Accurate radiographic calibration using multiple images
CN109171790B (zh) * 2018-09-26 2022-03-15 东软医疗***股份有限公司 一种ct扫描数据的处理方法、装置及ct机
CN109171793B (zh) * 2018-11-01 2022-10-14 上海联影医疗科技股份有限公司 一种角度检测和校正方法、装置、设备和介质
US11986326B2 (en) 2019-06-11 2024-05-21 Board Of Regents, The University Of Texas System Computed tomography (CT) imaging artifact reduction technique making use of tilted scans

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4088888A (en) * 1977-02-25 1978-05-09 General Electric Company Gantry for computed tomography
US4385397A (en) * 1981-10-23 1983-05-24 General Electric Company Parallax corrected external alignment lights
US4989142A (en) * 1988-10-24 1991-01-29 General Electric Company Three-dimensional images obtained from tomographic slices with gantry tilt
JPH084586B2 (ja) * 1989-02-07 1996-01-24 浜松ホトニクス株式会社 Ｃｔ装置
US5848126A (en) * 1993-11-26 1998-12-08 Kabushiki Kaisha Toshiba Radiation computed tomography apparatus
US5606585A (en) * 1995-12-21 1997-02-25 General Electric Company Methods and apparatus for multislice helical image reconstruction in a computer tomography system
US5799054A (en) * 1996-12-31 1998-08-25 General Electric Company Methods and apparatus for stabilizing a gantry in a computed tomography system

Also Published As

Publication number Publication date
IL131401A0 (en) 2001-01-28
DE69902326T2 (de) 2003-03-20
EP0981996B1 (de) 2002-07-31
JP4465062B2 (ja) 2010-05-19
IL131401A (en) 2002-11-10
EP0981996A1 (de) 2000-03-01
US6229869B1 (en) 2001-05-08
JP2000083947A (ja) 2000-03-28

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Legal Events

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8364 No opposition during term of opposition
8328 Change in the person/name/address of the agent

Representative=s name: ROEGER UND KOLLEGEN, 73728 ESSLINGEN