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IL98928A - Stable filter that can be stopped for two-corneal computed tomography - Google Patents

Stable filter that can be stopped for two-corneal computed tomography

Info

Publication number
IL98928A
IL98928A IL9892891A IL9892891A IL98928A IL 98928 A IL98928 A IL 98928A IL 9892891 A IL9892891 A IL 9892891A IL 9892891 A IL9892891 A IL 9892891A IL 98928 A IL98928 A IL 98928A
Authority
IL
Israel
Prior art keywords
filter
output
period
during
data acquisition
Prior art date
Application number
IL9892891A
Other languages
English (en)
Hebrew (he)
Other versions
IL98928A0 (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 IL98928A0 publication Critical patent/IL98928A0/xx
Publication of IL98928A publication Critical patent/IL98928A/en

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
    • A61B6/02—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
    • A61B6/40—Arrangements for generating radiation specially adapted for radiation diagnosis
    • A61B6/405—Source units specially adapted to modify characteristics of the beam during the data acquisition process
    • 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
    • A61B6/48—Diagnostic techniques
    • A61B6/482—Diagnostic techniques involving multiple energy imaging
    • 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)
  • Pulmonology (AREA)
  • Theoretical Computer Science (AREA)
  • Apparatus For Radiation Diagnosis (AREA)
  • Image Processing (AREA)
  • Image Analysis (AREA)
IL9892891A 1990-08-06 1991-07-23 Stable filter that can be stopped for two-corneal computed tomography IL98928A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/562,766 US5218533A (en) 1990-08-06 1990-08-06 Stable interruptible filter for dual beam computed tomography

Publications (2)

Publication Number Publication Date
IL98928A0 IL98928A0 (en) 1992-07-15
IL98928A true IL98928A (en) 1994-06-24

Family

ID=24247683

Family Applications (1)

Application Number Title Priority Date Filing Date
IL9892891A IL98928A (en) 1990-08-06 1991-07-23 Stable filter that can be stopped for two-corneal computed tomography

Country Status (7)

Country Link
US (1) US5218533A (zh)
EP (1) EP0473296B1 (zh)
JP (1) JPH0790023B2 (zh)
CN (1) CN1056506C (zh)
CA (1) CA2042226A1 (zh)
DE (1) DE69125668T2 (zh)
IL (1) IL98928A (zh)

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5301108A (en) * 1993-02-01 1994-04-05 General Electric Company Computed tomography system with z-axis correction
WO1996042022A1 (en) * 1993-03-31 1996-12-27 Eg & G Astrophysics Research Corporation Three-dimensional reconstruction based on a limited number of x-ray projections
US5841829A (en) * 1997-05-13 1998-11-24 Analogic Corporation Optimal channel filter for CT system with wobbling focal spot
JP4550179B2 (ja) * 1999-02-12 2010-09-22 株式会社東芝 Ｘ線コンピュータ断層撮影装置
US6597352B1 (en) * 1999-05-05 2003-07-22 Nokia Corporation Method and device for filtered sync detection
CN100536774C (zh) * 2002-07-23 2009-09-09 Ge医药系统环球科技公司 检测斑块成分的方法和系统
US6999549B2 (en) * 2002-11-27 2006-02-14 Ge Medical Systems Global Technology, Llc Method and apparatus for quantifying tissue fat content
US7187748B2 (en) * 2003-12-30 2007-03-06 Ge Medical Systems Global Technology Company, Llc Multidetector CT imaging method and apparatus with reducing radiation scattering
US7453987B1 (en) * 2004-03-04 2008-11-18 Science Applications International Corporation Method and system for high energy, low radiation power X-ray imaging of the contents of a target
WO2006047718A2 (en) * 2004-10-22 2006-05-04 Scantech Holdings, Llc Angled-beam detection system for container inspection
JP4294610B2 (ja) * 2005-04-14 2009-07-15 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ｃｔ装置、データ収集装置及びデータ収集方法
JP4299806B2 (ja) * 2005-05-11 2009-07-22 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 Ｘ線ｃｔ装置
RU2414724C2 (ru) * 2005-10-28 2011-03-20 Конинклейке Филипс Электроникс, Н.В. Способ и устройство для спектральной компьютерной томографии
US7283609B2 (en) * 2005-11-10 2007-10-16 General Electric Company CT detector photodiode having multiple charge storage devices
WO2007143531A2 (en) * 2006-06-02 2007-12-13 Massachusetts Eye & Ear Infirmary Audible range oculocometry for assessment of vestibular function
JP2010512826A (ja) * 2006-12-15 2010-04-30 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 スペクトル分解ｘ線撮像装置
FR2947658B1 (fr) * 2009-07-03 2011-07-29 Norbert Beyrard Procede et dispositif d'imagerie a rayons x a traitement tridimentionnel
US8314394B1 (en) 2009-11-04 2012-11-20 Science Applications International Corporation System and method for three-dimensional imaging using scattering from annihilation coincidence photons
DE102011075577B4 (de) * 2011-05-10 2013-01-31 MULTIPOND Wägetechnik GmbH Signalverarbeitungsverfahren, Vorrichtung zur Signalverarbeitung und Waage mit Vorrichtung zur Signalverarbeitung
CN111096761B (zh) * 2018-10-29 2024-03-08 上海西门子医疗器械有限公司 修正楔形滤波器散射的方法、装置和相关设备

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2503789C3 (de) * 1975-01-30 1980-10-09 Philips Patentverwaltung Gmbh, 2000 Hamburg Einrichtung zum Ermitteln der Absorption einer Strahlung in einer Ebene eines Körpers, mit einer Anordnung einer Strahlenquelle und einer Vielzahl von Strahlendetektoren, die relativ zu dem Körper kontinuierlich gedreht wird
US4029963A (en) * 1976-07-30 1977-06-14 The Board Of Trustees Of Leland Stanford Junior University X-ray spectral decomposition imaging system
US4331877A (en) * 1980-03-21 1982-05-25 University Patents, Inc. Transverse tomography with optical filtering
US4393352A (en) * 1980-09-18 1983-07-12 The Perkin-Elmer Corporation Sample-and-hold hybrid active RC filter
US4547893A (en) * 1981-06-12 1985-10-15 Analogic Corporation Continuous wave fan beam tomography system having a best-estimating filter
US4583240A (en) * 1983-08-15 1986-04-15 General Electric Company Data acquisition circuitry for use in computerized tomography system
US5115394A (en) * 1983-11-25 1992-05-19 Technicare Corporation Dual energy computerized tomography system
US4620313A (en) * 1984-06-20 1986-10-28 Technicare Corporation Controlled cutoff frequency analog filter for CT scanners
US4815118A (en) * 1987-06-29 1989-03-21 General Electric Company Data converter for CT data acquisition system

Also Published As

Publication number Publication date
IL98928A0 (en) 1992-07-15
EP0473296A3 (en) 1992-10-28
EP0473296A2 (en) 1992-03-04
CN1058710A (zh) 1992-02-19
DE69125668D1 (de) 1997-05-22
US5218533A (en) 1993-06-08
CA2042226A1 (en) 1992-02-07
JPH04244138A (ja) 1992-09-01
DE69125668T2 (de) 1997-11-06
EP0473296B1 (en) 1997-04-16
JPH0790023B2 (ja) 1995-10-04
CN1056506C (zh) 2000-09-20

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Legal Events

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