JP4675472B2 - 最適化データ取得によりｃｔ画質を最適化する方法及び装置 - Google Patents

最適化データ取得によりｃｔ画質を最適化する方法及び装置 Download PDF

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Publication number
JP4675472B2
JP4675472B2 JP2000360411A JP2000360411A JP4675472B2 JP 4675472 B2 JP4675472 B2 JP 4675472B2 JP 2000360411 A JP2000360411 A JP 2000360411A JP 2000360411 A JP2000360411 A JP 2000360411A JP 4675472 B2 JP4675472 B2 JP 4675472B2
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input signal
gain
normalized
scout
ray
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Japanese (ja)
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JP2001258875A5 (enExample
JP2001258875A (ja
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ヒュイ・デビッド・ヒー
トーマス・ルイス・トス
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General Electric Co
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General Electric Co
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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

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  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Medical Informatics (AREA)
  • Optics & Photonics (AREA)
  • Biomedical Technology (AREA)
  • Biophysics (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Veterinary Medicine (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Public Health (AREA)
  • Pathology (AREA)
  • Radiology & Medical Imaging (AREA)
  • Physics & Mathematics (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Molecular Biology (AREA)
  • Surgery (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Pulmonology (AREA)
  • Theoretical Computer Science (AREA)
  • Apparatus For Radiation Diagnosis (AREA)
JP2000360411A 1999-11-29 2000-11-28 最適化データ取得によりｃｔ画質を最適化する方法及び装置 Expired - Fee Related JP4675472B2 (ja)

Applications Claiming Priority (2)

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

Publications (3)

Publication Number Publication Date
JP2001258875A JP2001258875A (ja) 2001-09-25
JP2001258875A5 JP2001258875A5 (enExample) 2008-01-17
JP4675472B2 true JP4675472B2 (ja) 2011-04-20

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JP2000360411A Expired - Fee Related JP4675472B2 (ja) 1999-11-29 2000-11-28 最適化データ取得によりｃｔ画質を最適化する方法及び装置

Country Status (6)

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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
MX2014003685A (es) 2011-09-30 2015-05-11 Childrens Hosp Medical Center Metodo para optimizacion coherente y verificable de una dosis de radiacion de tomografia computarizada (tc).
US20150086101A1 (en) * 2013-09-25 2015-03-26 General Electric Company Method for organ localization
JP6571659B2 (ja) * 2014-08-04 2019-09-04 株式会社日立製作所 Ｘ線ｃｔ装置、データ処理装置及び投影データ生成方法

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
US5400378A (en) 1993-11-19 1995-03-21 General Electric Company Dynamic dose control in multi-slice CT scan
US5450462A (en) * 1993-11-19 1995-09-12 General Electric Company Modulation of x-ray tube current during CT scanning with modulation limit
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
US5828719A (en) 1996-12-23 1998-10-27 General Electric Company Methods and apparatus for modulating data acquisition system gain
US5734691A (en) * 1996-12-23 1998-03-31 General Electric Company Detector z-axis gain non-uniformity correction in a computed tomography system
JPH10211195A (ja) * 1997-01-30 1998-08-11 Shimadzu Corp Ｘ線ｃｔ装置

Also Published As

Publication number Publication date
CN1298098A (zh) 2001-06-06
IL139758A0 (en) 2002-02-10
DE60036355T2 (de) 2008-06-12
EP1103221B1 (en) 2007-09-12
US6307912B1 (en) 2001-10-23
DE60036355D1 (de) 2007-10-25
IL139758A (en) 2004-06-20
CN1231182C (zh) 2005-12-14
EP1103221A1 (en) 2001-05-30
JP2001258875A (ja) 2001-09-25

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