IL113157A - Detector channel gain calibration using focal spot wobble - Google Patents

Detector channel gain calibration using focal spot wobble

Info

Publication number
IL113157A
IL113157A IL11315795A IL11315795A IL113157A IL 113157 A IL113157 A IL 113157A IL 11315795 A IL11315795 A IL 11315795A IL 11315795 A IL11315795 A IL 11315795A IL 113157 A IL113157 A IL 113157A
Authority
IL
Israel
Prior art keywords
focal spot
channel gain
gain calibration
detector channel
spot wobble
Prior art date
Application number
IL11315795A
Other languages
English (en)
Other versions
IL113157A0 (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 IL113157A0 publication Critical patent/IL113157A0/xx
Publication of IL113157A publication Critical patent/IL113157A/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
    • A61B6/02—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
    • A61B6/4021—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)
  • Radiology & Medical Imaging (AREA)
  • Molecular Biology (AREA)
  • Biophysics (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Optics & Photonics (AREA)
  • Pathology (AREA)
  • Physics & Mathematics (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (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)
IL11315795A 1994-04-11 1995-03-28 Detector channel gain calibration using focal spot wobble IL113157A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US08/226,193 US5430785A (en) 1994-04-11 1994-04-11 Detector channel gain calibration using focal spot wobble

Publications (2)

Publication Number Publication Date
IL113157A0 IL113157A0 (en) 1995-06-29
IL113157A true IL113157A (en) 1997-11-20

Family

ID=22847951

Family Applications (1)

Application Number Title Priority Date Filing Date
IL11315795A IL113157A (en) 1994-04-11 1995-03-28 Detector channel gain calibration using focal spot wobble

Country Status (4)

Country Link
US (1) US5430785A (de)
JP (1) JPH0838467A (de)
DE (1) DE19513052A1 (de)
IL (1) IL113157A (de)

Families Citing this family (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2825450B2 (ja) * 1994-12-06 1998-11-18 株式会社東芝 Ｃｔスキャナ
US5761257A (en) * 1996-12-02 1998-06-02 General Electric Company Normalizing projection data in a computed tomography system
US5907594A (en) * 1997-07-01 1999-05-25 Analogic Corporation Reconstruction of volumetric images by successive approximation in cone-beam computed tomography systems
JP3588048B2 (ja) * 1997-07-01 2004-11-10 アナロジック コーポレーション ヘリカルスキャン・立体的コンピュータ断層撮影システムのための改良検出器アレイ幾何学配列
US5960056A (en) * 1997-07-01 1999-09-28 Analogic Corporation Method and apparatus for reconstructing volumetric images in a helical scanning computed tomography system with multiple rows of detectors
US6125335A (en) * 1998-04-10 2000-09-26 Sun Nuclear Corporation Wide field calibration of a multi-sensor array
US6280084B1 (en) * 1998-08-25 2001-08-28 General Electric Company Methods and apparatus for indirect high voltage verification in an imaging system
US6327329B1 (en) * 1998-08-25 2001-12-04 General Electric Company Methods and apparatus for monitoring detector image quality
DE19851556C2 (de) * 1998-11-09 2000-11-23 Siemens Ag CT-Gerät
US6418185B1 (en) 1999-08-18 2002-07-09 General Electric Company Methods and apparatus for time-multiplexing data acquisition
US6393098B1 (en) * 1999-08-31 2002-05-21 General Electric Company Amplifier offset and gain correction system for X-ray imaging panel
US6307912B1 (en) * 1999-11-29 2001-10-23 General Electric Company Methods and apparatus for optimizing CT image quality with optimized data acquisition
DE10224315B4 (de) * 2002-05-31 2007-11-15 Siemens Ag Verfahren zum Bestimmung von Korrektur-Koeffizienten für Detektorkanäle eines Computertomographen
US20040116796A1 (en) * 2002-12-17 2004-06-17 Jianying Li Methods and apparatus for scoring a substance
DE102004001682A1 (de) * 2004-01-12 2005-08-04 Siemens Ag Verfahren zur Lokalisierung eines Objekts im Strahlengang eines Computertomographen
US6996206B2 (en) * 2004-04-12 2006-02-07 General Electric Company Method, system and storage medium for reference normalization for blocked reference channels
US7873144B2 (en) * 2004-12-17 2011-01-18 Koninklijke Philips Electronics N.V. Pulsed x-ray for continuous detector correction
US7746974B2 (en) * 2006-09-29 2010-06-29 Siemens Medical Solutions Usa, Inc. Radiographic and fluoroscopic CT imaging
CN101541243A (zh) * 2006-11-28 2009-09-23 皇家飞利浦电子股份有限公司 辐射及探测系统
US7963697B2 (en) * 2009-01-20 2011-06-21 General Electric Company Gain calibration and correction technique for digital imaging systems
US7960687B1 (en) * 2010-09-30 2011-06-14 Schlumberger Technology Corporation Sourceless downhole X-ray tool
US8929507B2 (en) * 2011-10-19 2015-01-06 Kabushiki Kaisha Toshiba Method and system for substantially reducing ring artifact based upon ring statistics
JP2016067947A (ja) * 2014-10-01 2016-05-09 株式会社東芝 Ｘ線ｃｔ装置、画像処理装置及び画像処理プログラム
US10433811B2 (en) 2016-12-23 2019-10-08 General Electric Company Self-calibrating CT detectors, systems and methods for self-calibration
US10758203B2 (en) * 2017-08-08 2020-09-01 Canon Medical Systems Corporation X-ray computed tomography apparatus
US10898159B2 (en) 2019-01-11 2021-01-26 General Electric Company X-ray imaging system use and calibration

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4789930A (en) * 1985-11-15 1988-12-06 Picker International, Inc. Energy dependent gain correction for radiation detection

Also Published As

Publication number Publication date
DE19513052A1 (de) 1995-11-09
IL113157A0 (en) 1995-06-29
JPH0838467A (ja) 1996-02-13
US5430785A (en) 1995-07-04

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Legal Events

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