CN1231182C - 用于借助优化的数据采集优化ct图象质量的方法和装置 - Google Patents

用于借助优化的数据采集优化ct图象质量的方法和装置 Download PDF

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Publication number
CN1231182C
CN1231182C CNB001342916A CN00134291A CN1231182C CN 1231182 C CN1231182 C CN 1231182C CN B001342916 A CNB001342916 A CN B001342916A CN 00134291 A CN00134291 A CN 00134291A CN 1231182 C CN1231182 C CN 1231182C
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CN
China
Prior art keywords
input signal
gain
ray
normalized
scan
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Expired - Fee Related
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CNB001342916A
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English (en)
Chinese (zh)
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CN1298098A (zh
Inventor
H·D·何
T·L·托斯
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General Electric Co
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General Electric Co
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Publication of CN1231182C publication Critical patent/CN1231182C/zh
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    • 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
    • A61B6/4064—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
    • A61B6/48—Diagnostic techniques
    • A61B6/488—Diagnostic techniques involving pre-scan acquisition

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)
CNB001342916A 1999-11-29 2000-11-29 用于借助优化的数据采集优化ct图象质量的方法和装置 Expired - Fee Related CN1231182C (zh)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US09/450362 1999-11-29
US09/450,362 US6307912B1 (en) 1999-11-29 1999-11-29 Methods and apparatus for optimizing CT image quality with optimized data acquisition
US09/450,362 1999-11-29

Publications (2)

Publication Number Publication Date
CN1298098A CN1298098A (zh) 2001-06-06
CN1231182C true CN1231182C (zh) 2005-12-14

Family

ID=23787799

Family Applications (1)

Application Number Title Priority Date Filing Date
CNB001342916A Expired - Fee Related CN1231182C (zh) 1999-11-29 2000-11-29 用于借助优化的数据采集优化ct图象质量的方法和装置

Country Status (6)

Country Link
US (1) US6307912B1 (enExample)
EP (1) EP1103221B1 (enExample)
JP (1) JP4675472B2 (enExample)
CN (1) CN1231182C (enExample)
DE (1) DE60036355T2 (enExample)
IL (1) IL139758A (enExample)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6411673B1 (en) * 2000-12-29 2002-06-25 Ge Medical Systems Global Technology Company, Llc Sampling rate scaling of calibration vectors in x-ray CT machines
JP4532005B2 (ja) * 2001-03-09 2010-08-25 株式会社日立メディコ Ｘ線ｃｔ装置及びその画像表示方法
JP4387638B2 (ja) * 2001-07-04 2009-12-16 株式会社東芝 Ｘ線コンピュータ断層診断装置
JP5438647B2 (ja) * 2010-03-31 2014-03-12 富士フイルム株式会社 放射線画像システム
US8031828B1 (en) 2010-04-30 2011-10-04 General Electric Company Method and apparatus for computed tomography
WO2013049818A1 (en) 2011-09-30 2013-04-04 Cincinnati Children's Hospital Medical Center Method for consistent and verifiable optimization of computed tomography (ct) radiation dose
US20150086101A1 (en) * 2013-09-25 2015-03-26 General Electric Company Method for organ localization
CN106572833B (zh) * 2014-08-04 2019-09-24 株式会社日立制作所 X射线ct装置、数据处理装置以及投影数据生成方法

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6152860A (ja) * 1984-08-24 1986-03-15 株式会社　日立メデイコ Ｘ線ｃｔ装置
JPH01299535A (ja) * 1988-05-30 1989-12-04 Toshiba Corp データ収集装置
US5220589A (en) * 1991-07-18 1993-06-15 General Electric Company Correction circuit for a floating-point amplifier
JP2624927B2 (ja) * 1992-10-06 1997-06-25 株式会社東芝 Ｘ線ｃｔ装置
US5416815A (en) * 1993-07-02 1995-05-16 General Electric Company Adaptive filter for reducing streaking artifacts in x-ray tomographic images
US5379333A (en) 1993-11-19 1995-01-03 General Electric Company Variable dose application by modulation of x-ray tube current during CT scanning
US5450462A (en) * 1993-11-19 1995-09-12 General Electric Company Modulation of x-ray tube current during CT scanning with modulation limit
US5400378A (en) 1993-11-19 1995-03-21 General Electric Company Dynamic dose control in multi-slice CT scan
US5430785A (en) * 1994-04-11 1995-07-04 General Electric Company Detector channel gain calibration using focal spot wobble
JPH07303632A (ja) * 1994-05-11 1995-11-21 Ge Yokogawa Medical Syst Ltd Ｃｔ装置
US5933540A (en) 1995-05-11 1999-08-03 General Electric Company Filter system and method for efficiently suppressing noise and improving edge definition in a digitized image
CA2184237A1 (en) * 1995-09-08 1997-03-09 Jay A. Stein X-ray bone densitometry
JPH1021372A (ja) * 1996-07-05 1998-01-23 Toshiba Corp Ｘ線ｃｔ装置
JP3673041B2 (ja) * 1996-11-21 2005-07-20 ジーイー横河メディカルシステム株式会社 Ｃｔイメージング方法およびｘ線ｃｔ装置
US5734691A (en) * 1996-12-23 1998-03-31 General Electric Company Detector z-axis gain non-uniformity correction in a computed tomography system
US5828719A (en) * 1996-12-23 1998-10-27 General Electric Company Methods and apparatus for modulating data acquisition system gain
JPH10211195A (ja) * 1997-01-30 1998-08-11 Shimadzu Corp Ｘ線ｃｔ装置

Also Published As

Publication number Publication date
DE60036355T2 (de) 2008-06-12
US6307912B1 (en) 2001-10-23
CN1298098A (zh) 2001-06-06
EP1103221B1 (en) 2007-09-12
JP2001258875A (ja) 2001-09-25
IL139758A (en) 2004-06-20
DE60036355D1 (de) 2007-10-25
JP4675472B2 (ja) 2011-04-20
IL139758A0 (en) 2002-02-10
EP1103221A1 (en) 2001-05-30

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