JP4356061B2 - 投影データに加重する方法及び装置 - Google Patents

投影データに加重する方法及び装置 Download PDF

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Publication number
JP4356061B2
JP4356061B2 JP2003089493A JP2003089493A JP4356061B2 JP 4356061 B2 JP4356061 B2 JP 4356061B2 JP 2003089493 A JP2003089493 A JP 2003089493A JP 2003089493 A JP2003089493 A JP 2003089493A JP 4356061 B2 JP4356061 B2 JP 4356061B2
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JP
Japan
Prior art keywords
computer
detector
projection data
angle
projection
Prior art date
Legal status (The legal status 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 status listed.)
Expired - Fee Related
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JP2003089493A
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English (en)
Japanese (ja)
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JP2003319932A5 (enExample
JP2003319932A (ja
Inventor
チアン・シェー
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GE Medical Systems Global Technology Co LLC
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GE Medical Systems Global Technology Co LLC
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Classifications

    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T11/00—2D [Two Dimensional] image generation
    • G06T11/003—Reconstruction from projections, e.g. tomography
    • G06T11/005—Specific pre-processing for tomographic reconstruction, e.g. calibration, source positioning, rebinning, scatter correction, retrospective gating
    • 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
    • A61B6/027—Arrangements for diagnosis sequentially in different planes; Stereoscopic radiation diagnosis characterised by the use of a particular data acquisition trajectory, e.g. helical or spiral

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Apparatus For Radiation Diagnosis (AREA)
  • Magnetic Resonance Imaging Apparatus (AREA)
JP2003089493A 2002-03-29 2003-03-28 投影データに加重する方法及び装置 Expired - Fee Related JP4356061B2 (ja)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US10/113532 2002-03-29
US10/113,532 US6654442B2 (en) 2002-03-29 2002-03-29 Methods and apparatus for weighting projection data

Publications (3)

Publication Number Publication Date
JP2003319932A JP2003319932A (ja) 2003-11-11
JP2003319932A5 JP2003319932A5 (enExample) 2006-05-18
JP4356061B2 true JP4356061B2 (ja) 2009-11-04

Family

ID=28041032

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2003089493A Expired - Fee Related JP4356061B2 (ja) 2002-03-29 2003-03-28 投影データに加重する方法及び装置

Country Status (3)

Country Link
US (1) US6654442B2 (enExample)
EP (1) EP1351193A3 (enExample)
JP (1) JP4356061B2 (enExample)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6873675B2 (en) * 2002-12-18 2005-03-29 Ge Medical Systems Global Technology Company, Llc Multi-sector back-off logic algorithm for obtaining optimal slice-sensitive computed tomography profiles
US7415145B2 (en) * 2003-12-30 2008-08-19 General Electric Company Methods and apparatus for artifact reduction
US7050527B2 (en) * 2004-02-09 2006-05-23 G.E. Medical Systems Global Technology Company, Llc Methods and apparatus for artifact reduction in cone beam CT image reconstruction
US20050201605A1 (en) * 2004-03-11 2005-09-15 Jianying Li Methods and apparatus for CT smoothing to reduce artifacts
US7173996B2 (en) * 2004-07-16 2007-02-06 General Electric Company Methods and apparatus for 3D reconstruction in helical cone beam volumetric CT
US8218720B2 (en) * 2007-03-12 2012-07-10 Varian Medical Systems, Inc. Method and apparatus to facilitate reconstructing an image using fan-beam data
CN107260194B (zh) * 2016-04-08 2020-08-28 山西锦地裕成医疗设备有限公司 用于正电子断层成像的方法和图像重建方法及系统
JP6774813B2 (ja) * 2016-08-12 2020-10-28 日本電子株式会社 画像処理装置、画像処理方法、および分析装置

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5377250A (en) * 1992-08-07 1994-12-27 General Electric Company Reconstruction method for helical scanning computed tomography apparatus with multi-row detector array
US5416815A (en) 1993-07-02 1995-05-16 General Electric Company Adaptive filter for reducing streaking artifacts in x-ray tomographic images
US5515409A (en) 1994-12-22 1996-05-07 General Electric Company Helical interpolative algorithm for image reconstruction in a CT system
DE19528261C1 (de) 1995-08-01 1996-10-31 Siemens Ag Verfahren zur Bildrekonstruktion bei einem Computertomographen
US5727041A (en) 1996-11-13 1998-03-10 General Electric Company Methods and apparatus for reducing partial volume image artifacts
US5812628A (en) 1996-12-12 1998-09-22 General Electric Company Methods and apparatus for detecting partial volume image artifacts
US6014419A (en) * 1997-11-07 2000-01-11 Hu; Hui CT cone beam scanner with fast and complete data acquistion and accurate and efficient regional reconstruction
US6115487A (en) 1998-01-08 2000-09-05 General Electric Company Correction algorithm for bone-induced spectral artifacts in computed tomograph imaging
US6035012A (en) 1998-05-14 2000-03-07 Gen Electric Artifact correction for highly attenuating objects
US6134292A (en) 1998-07-13 2000-10-17 General Electric Company Methods and apparatus for reducing z-axis non-uniformity artifacts
US6061419A (en) 1998-08-25 2000-05-09 General Electric Company Methods and apparatus for noise compensation in an imaging system
US6061420A (en) 1998-08-25 2000-05-09 General Electric Company Methods and apparatus for graphical Rx in a multislice imaging system
US6215841B1 (en) 1998-09-29 2001-04-10 General Electric Company Methods and apparatus for 3D artifact reduction
US6233308B1 (en) 1999-03-19 2001-05-15 General Electric Company Methods and apparatus for artifact compensation with variable angular sampling
US6339632B1 (en) 1999-12-23 2002-01-15 Ge Medical Systems Global Technology Company, Llc Multi slice single filtering helical weighting method and apparatus to use the same
US6341154B1 (en) * 2000-06-22 2002-01-22 Ge Medical Systems Global Technology Company, Llc Methods and apparatus for fast CT imaging helical weighting
US6418184B1 (en) * 2000-12-29 2002-07-09 Ge Medical Systems Global Technology Company, Llc Helical rowwise view weighting of computed tomographic images
US6421411B1 (en) 2001-05-10 2002-07-16 Ge Medical Systems Global Technology Company, Llc Methods and apparatus for helical image artifact reduction

Also Published As

Publication number Publication date
US6654442B2 (en) 2003-11-25
EP1351193A2 (en) 2003-10-08
EP1351193A3 (en) 2006-04-12
JP2003319932A (ja) 2003-11-11
US20030185337A1 (en) 2003-10-02

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