WO2006109233A3 - Image processing system, particularly for circular and helical cone-beam ct - Google Patents

Image processing system, particularly for circular and helical cone-beam ct Download PDF

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Publication number
WO2006109233A3
WO2006109233A3 PCT/IB2006/051086 IB2006051086W WO2006109233A3 WO 2006109233 A3 WO2006109233 A3 WO 2006109233A3 IB 2006051086 W IB2006051086 W IB 2006051086W WO 2006109233 A3 WO2006109233 A3 WO 2006109233A3
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WO
WIPO (PCT)
Prior art keywords
model
circular
image processing
helical cone
processing system
Prior art date
Application number
PCT/IB2006/051086
Other languages
French (fr)
Other versions
WO2006109233A2 (en
Inventor
Thomas Koehler
Roland Proksa
Andy Ziegler
Original Assignee
Philips Intellectual Property
Koninkl Philips Electronics Nv
Thomas Koehler
Roland Proksa
Andy Ziegler
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 Philips Intellectual Property, Koninkl Philips Electronics Nv, Thomas Koehler, Roland Proksa, Andy Ziegler filed Critical Philips Intellectual Property
Priority to JP2008506022A priority Critical patent/JP2008535612A/en
Priority to US11/911,214 priority patent/US20080187195A1/en
Priority to EP06727865A priority patent/EP1875438A2/en
Publication of WO2006109233A2 publication Critical patent/WO2006109233A2/en
Publication of WO2006109233A3 publication Critical patent/WO2006109233A3/en

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Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T11/00—2D [Two Dimensional] image generation
    • G06T11/003—Reconstruction from projections, e.g. tomography
    • G06T11/008—Specific post-processing after tomographic reconstruction, e.g. voxelisation, metal artifact correction
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T11/00—2D [Two Dimensional] image generation
    • G06T11/003—Reconstruction from projections, e.g. tomography
    • G06T11/006—Inverse problem, transformation from projection-space into object-space, e.g. transform methods, back-projection, algebraic methods

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Algebra (AREA)
  • Mathematical Analysis (AREA)
  • Mathematical Optimization (AREA)
  • Mathematical Physics (AREA)
  • Pure & Applied Mathematics (AREA)
  • Apparatus For Radiation Diagnosis (AREA)

Abstract

The invention relates to an examination apparatus with an X-ray device (10) for circular or helical cone-beam CT acquisition of projections images (Pi(E1), Pi(E2)) of a patient (1) with different energy spectra (E1, E2) and/or with an energy -resolved detection. By a combination of the projections, images (Ibone,i, Itissue,i) can be calculated that show predominantly the bone structure and the soft tissue, respectively. Therefore, a 3D model (Mbone) of the bone structure and a 3D model (Mtissue) of the tissue can be reconstructed separately. After removal of artifacts from the bone- structure model (Mbone), both separate 3D models can be integrated to a combined model (M) of the body volume with a high image quality.
PCT/IB2006/051086 2005-04-14 2006-04-10 Image processing system, particularly for circular and helical cone-beam ct WO2006109233A2 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP2008506022A JP2008535612A (en) 2005-04-14 2006-04-10 Image processing system for circular and helical cone beam CT
US11/911,214 US20080187195A1 (en) 2005-04-14 2006-04-10 Image Processing System, Particularly for Circular and Helical Cone-Beam Ct
EP06727865A EP1875438A2 (en) 2005-04-14 2006-04-10 Image processing system, particularly for circular and helical cone-beam ct

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP05102970.0 2005-04-14
EP05102970 2005-04-14

Publications (2)

Publication Number Publication Date
WO2006109233A2 WO2006109233A2 (en) 2006-10-19
WO2006109233A3 true WO2006109233A3 (en) 2007-07-05

Family

ID=37087406

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2006/051086 WO2006109233A2 (en) 2005-04-14 2006-04-10 Image processing system, particularly for circular and helical cone-beam ct

Country Status (4)

Country Link
US (1) US20080187195A1 (en)
EP (1) EP1875438A2 (en)
JP (1) JP2008535612A (en)
WO (1) WO2006109233A2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105046739A (en) * 2015-06-19 2015-11-11 四川大学 Medical-image three-dimensional reconstruction method based on VTK

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DE102007046359B4 (en) 2007-09-27 2016-02-04 Siemens Aktiengesellschaft Method and device for creating material-selective volume images
JP5085310B2 (en) * 2007-12-27 2012-11-28 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 Image processing apparatus, program, and X-ray CT apparatus
EP2370836B1 (en) * 2008-11-25 2018-05-30 Koninklijke Philips N.V. Spectral imaging
JP5619525B2 (en) * 2009-09-30 2014-11-05 株式会社東芝 X-ray computed tomography apparatus and image processing apparatus
US8855394B2 (en) * 2011-07-01 2014-10-07 Carestream Health, Inc. Methods and apparatus for texture based filter fusion for CBCT system and cone-beam image reconstruction
US9513233B2 (en) 2011-10-28 2016-12-06 The University Of Chicago Color x-ray histology for multi-stained biologic sample
JP5596100B2 (en) * 2012-10-05 2014-09-24 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-ray tomography equipment
US9836858B2 (en) * 2014-09-19 2017-12-05 Siemens Aktiengesellschaft Method for generating a combined projection image and imaging device
CN104778745B (en) * 2015-02-12 2017-07-04 福州大学 Intra-body communication modeling method based on personalized human body image data
CN105426581B (en) * 2015-11-03 2018-09-18 福州大学 A kind of capacitive human body channel modeling method of the Wearable of Electromagnetic field
CN107019518B (en) * 2016-02-01 2020-07-28 通用电气公司 Signal processing method for scatter correction in computed tomography and imaging system
JP6080999B2 (en) * 2016-03-29 2017-02-15 三菱プレシジョン株式会社 Biological data model creation method and apparatus

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US20040184574A1 (en) * 2002-07-23 2004-09-23 Xiaoye Wu Method and apparatus for generating a density map using dual-energy CT

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US20040101104A1 (en) * 2002-11-27 2004-05-27 Avinash Gopal B. Method and apparatus for soft-tissue volume visualization

Non-Patent Citations (3)

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SUKOVIC P ET AL: "Experimental results with dual-energy penalized weighted least-squares image reconstruction for x-ray transmission tomography", NUCLEAR SCIENCE SYMPOSIUM CONFERENCE RECORD, 2000 IEEE LYON, FRANCE 15-20 OCT. 2000, PISCATAWAY, NJ, USA,IEEE, US, vol. 3, 25 October 2000 (2000-10-25), pages 2316 - 2320, XP010556777, ISBN: 0-7803-6503-8 *
SUKOVIC P ET AL: "Penalized weighted least-squares as a metal streak artifacts removal technique in computed tomography", NUCLEAR SCIENCE SYMPOSIUM CONFERENCE RECORD, 2000 IEEE LYON, FRANCE 15-20 OCT. 2000, PISCATAWAY, NJ, USA,IEEE, US, vol. 3, 25 October 2000 (2000-10-25), pages 2349 - 2352, XP010556785, ISBN: 0-7803-6503-8 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105046739A (en) * 2015-06-19 2015-11-11 四川大学 Medical-image three-dimensional reconstruction method based on VTK

Also Published As

Publication number Publication date
EP1875438A2 (en) 2008-01-09
WO2006109233A2 (en) 2006-10-19
JP2008535612A (en) 2008-09-04
US20080187195A1 (en) 2008-08-07

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