IL131403A - Variable aperture z-axis tracking collimator for a computed tomograph system - Google Patents

Variable aperture z-axis tracking collimator for a computed tomograph system

Info

Publication number
IL131403A
IL131403A IL13140399A IL13140399A IL131403A IL 131403 A IL131403 A IL 131403A IL 13140399 A IL13140399 A IL 13140399A IL 13140399 A IL13140399 A IL 13140399A IL 131403 A IL131403 A IL 131403A
Authority
IL
Israel
Prior art keywords
variable aperture
axis tracking
computed tomograph
tomograph system
collimator
Prior art date
Application number
IL13140399A
Other languages
English (en)
Other versions
IL131403A0 (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 IL131403A0 publication Critical patent/IL131403A0/xx
Publication of IL131403A publication Critical patent/IL131403A/xx

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
    • A61B6/52—Devices using data or image processing specially adapted for radiation diagnosis
    • A61B6/5205—Devices using data or image processing specially adapted for radiation diagnosis involving processing of raw data to produce diagnostic data
    • 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
    • A61B6/06—Diaphragms
    • 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
    • A61B6/4064—Arrangements for generating radiation specially adapted for radiation diagnosis specially adapted for producing a particular type of beam
    • A61B6/4085—Cone-beams
    • 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
    • A61B6/54—Control of apparatus or devices for radiation diagnosis
    • A61B6/542—Control of apparatus or devices for radiation diagnosis involving control of exposure
    • 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
    • A61B6/4021—Arrangements for generating radiation specially adapted for radiation diagnosis involving movement of the focal spot

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Medical Informatics (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Molecular Biology (AREA)
  • Biophysics (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Optics & Photonics (AREA)
  • Pathology (AREA)
  • Radiology & Medical Imaging (AREA)
  • Biomedical Technology (AREA)
  • Physics & Mathematics (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Surgery (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • Pulmonology (AREA)
  • Theoretical Computer Science (AREA)
  • Apparatus For Radiation Diagnosis (AREA)
  • Closed-Circuit Television Systems (AREA)
IL13140399A 1998-08-25 1999-08-15 Variable aperture z-axis tracking collimator for a computed tomograph system IL131403A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US09/140,108 US6173039B1 (en) 1998-08-25 1998-08-25 Variable aperture z-axis tracking collimator for computed tomograph system

Publications (2)

Publication Number Publication Date
IL131403A0 IL131403A0 (en) 2001-01-28
IL131403A true IL131403A (en) 2003-06-24

Family

ID=22489794

Family Applications (1)

Application Number Title Priority Date Filing Date
IL13140399A IL131403A (en) 1998-08-25 1999-08-15 Variable aperture z-axis tracking collimator for a computed tomograph system

Country Status (5)

Country Link
US (2) US6173039B1 (fr)
EP (1) EP0982002B1 (fr)
JP (1) JP2000070253A (fr)
DE (1) DE69931706T2 (fr)
IL (1) IL131403A (fr)

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* Cited by examiner, † Cited by third party
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US6173039B1 (en) * 1998-08-25 2001-01-09 General Electric Company Variable aperture z-axis tracking collimator for computed tomograph system
DE19905974A1 (de) * 1999-02-12 2000-09-07 Siemens Ag Verfahren zur Abtastung eines Untersuchungsobjekts mittels eines CT-Geräts
DE19954663B4 (de) * 1999-11-13 2006-06-08 Smiths Heimann Gmbh Verfahren und Vorrichtung zur Bestimmung eines Materials eines detektierten Gegenstandes
JP4535578B2 (ja) * 2000-08-03 2010-09-01 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システム及び操作コンソール及び制御方法及び記憶媒体
US6568851B2 (en) * 2000-10-25 2003-05-27 Kabushiki Kaisha Toshiba X-ray CT scanner
JP3942142B2 (ja) * 2000-12-15 2007-07-11 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 放射線断層撮影装置およびその方法
JP3947372B2 (ja) * 2001-07-25 2007-07-18 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システムにおけるアパーチャの位置調整機構およびガントリ装置ならびにその制御方法
DE10154539C1 (de) * 2001-11-07 2003-06-26 Siemens Ag Strahlenblende für ein Röntgengerät und Röntgengerät
DE10201321B4 (de) * 2002-01-15 2011-02-24 Siemens Ag Computertomographie-Gerät und Verfahren mit aktiver Anpassung der Mess-Elektronik
US6647092B2 (en) 2002-01-18 2003-11-11 General Electric Company Radiation imaging system and method of collimation
US6836529B2 (en) * 2002-02-13 2004-12-28 General Electric Company Method and apparatus of CT imaging with voltage modulation
US6836535B2 (en) * 2002-04-22 2004-12-28 General Electric Company Method and apparatus of modulating the filtering of radiation during radiographic imaging
US20030199757A1 (en) * 2002-04-22 2003-10-23 Toth Thomas L. Method and apparatus of modulating radiation filtering during radiographic imaging
DE10302565A1 (de) * 2003-01-22 2004-08-12 Siemens Ag Bildgebendes Tomographiegerät mit wenigstens zwei Strahler-Detektor-Kombinationen
FR2859868B1 (fr) 2003-09-12 2016-02-12 Ge Med Sys Global Tech Co Llc Installation a rayons x
JP3961468B2 (ja) 2003-09-19 2007-08-22 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 放射線計算断層画像装置およびそれに用いる放射線検出器
US6990171B2 (en) * 2003-10-27 2006-01-24 General Electric Company System and method of determining a user-defined region-of-interest of an imaging subject for x-ray flux management control
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
US6980623B2 (en) * 2003-10-29 2005-12-27 Ge Medical Systems Global Technology Company Llc Method and apparatus for z-axis tracking and collimation
JP2005261548A (ja) * 2004-03-17 2005-09-29 Toshiba Corp Ｘ線装置
US7260171B1 (en) * 2004-10-25 2007-08-21 General Electric Company Apparatus for acquisition of CT data with penumbra attenuation calibration
US7113570B2 (en) * 2005-02-08 2006-09-26 General Electric Company Methods and systems for helical overscan reduction
US7254216B2 (en) * 2005-07-29 2007-08-07 General Electric Company Methods and apparatus for filtering a radiation beam and CT imaging systems using same
US7242749B2 (en) * 2005-11-15 2007-07-10 General Electric Company Methods and systems for dynamic pitch helical scanning
CN102036610A (zh) * 2008-05-21 2011-04-27 皇家飞利浦电子股份有限公司 飞越式扫描期间动态可调的源准直
WO2009155418A2 (fr) * 2008-06-18 2009-12-23 Wright State University Tomodensitomètres, filtres radiologiques et procédés associés
US8184775B1 (en) * 2010-10-29 2012-05-22 General Electric Company Dynamic collimator for wide coverage and low dose cardiac CT imaging
WO2013011403A1 (fr) * 2011-07-15 2013-01-24 Koninklijke Philips Electronics N.V. Collimation dynamique
DE102012211998B4 (de) * 2012-07-10 2024-08-08 Siemens Healthineers Ag Computertomograph und Verfahren zum Gewinnen eines Volumenmodells von einem Körper mittels des Computertomographen
CN103829964A (zh) * 2012-11-27 2014-06-04 Ge医疗系统环球技术有限公司 X射线检测器、准直仪、ct设备及其所用的方法
US10314553B2 (en) 2016-01-21 2019-06-11 FMI Medical Systems Co., Ltd. Focal spot position control using pre-patient collimator with beam tracking
US10186340B2 (en) 2016-01-21 2019-01-22 FMI Medical Systems Co., Ltd. Anti-scatter collimator for high speed rotation
US11324462B2 (en) 2017-11-14 2022-05-10 General Electric Company Methods and systems for fast filter change
CN109316199B (zh) * 2018-09-18 2022-06-28 上海联影医疗科技股份有限公司 一种准直器过滤组件、准直器及医疗设备
DE102019135782A1 (de) * 2019-12-23 2021-06-24 Otto-Von-Guericke-Universität Magdeburg Computertomographie-System
US11998372B2 (en) * 2022-02-02 2024-06-04 GE Precision Healthcare LLC Pre-patient collimator having a self-shielding design and additively manufactured components
US12125604B2 (en) * 2022-02-02 2024-10-22 GE Precision Healthcare LLC Pre-patient collimator having a built-in alignment mechanism

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US4361902A (en) * 1980-07-07 1982-11-30 General Electric Company Collimator for x-ray diagnostic apparatus
JPS61265558A (ja) 1985-05-20 1986-11-25 Toshiba Corp Ｘ線ｃｔ装置のコリメ−タ
US4868843A (en) * 1986-09-10 1989-09-19 Varian Associates, Inc. Multileaf collimator and compensator for radiotherapy machines
US4991189A (en) 1990-04-16 1991-02-05 General Electric Company Collimation apparatus for x-ray beam correction
US5090037A (en) 1990-11-19 1992-02-18 General Electric Company Helical scanning computed tomography with tracking x-ray source
US5430784A (en) 1994-02-28 1995-07-04 General Electric Company Computerized tomography imaging using multi-slice detector with selectable slice thickness
US5644614A (en) * 1995-12-21 1997-07-01 General Electric Company Collimator for reducing patient x-ray dose
IL119033A0 (en) * 1996-08-07 1996-11-14 Elscint Ltd Multi-slice detector array
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US5867555A (en) 1997-03-04 1999-02-02 Siemens Aktiengesellschaft Adaptive dose modulation during CT scanning
US5982846A (en) * 1998-04-13 1999-11-09 General Electric Company Methods and apparatus for dose reduction in a computed tomograph
US6061419A (en) * 1998-08-25 2000-05-09 General Electric Company Methods and apparatus for noise compensation in an imaging system
US6056437A (en) * 1998-08-25 2000-05-02 General Electric Company Methods and apparatus for imaging system detector alignment
US6173039B1 (en) * 1998-08-25 2001-01-09 General Electric Company Variable aperture z-axis tracking collimator for computed tomograph system

Also Published As

Publication number Publication date
US6298117B1 (en) 2001-10-02
DE69931706D1 (de) 2006-07-20
IL131403A0 (en) 2001-01-28
US6173039B1 (en) 2001-01-09
EP0982002B1 (fr) 2006-06-07
EP0982002A1 (fr) 2000-03-01
DE69931706T2 (de) 2007-03-29
JP2000070253A (ja) 2000-03-07

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