WO2006109227A3 - Energy distribution reconstruction in ct - Google Patents

Energy distribution reconstruction in ct Download PDF

Info

Publication number
WO2006109227A3
WO2006109227A3 PCT/IB2006/051068 IB2006051068W WO2006109227A3 WO 2006109227 A3 WO2006109227 A3 WO 2006109227A3 IB 2006051068 W IB2006051068 W IB 2006051068W WO 2006109227 A3 WO2006109227 A3 WO 2006109227A3
Authority
WO
WIPO (PCT)
Prior art keywords
energy distribution
reconstruction
distribution reconstruction
detector
redundancy
Prior art date
Application number
PCT/IB2006/051068
Other languages
French (fr)
Other versions
WO2006109227A2 (en
Inventor
Andy Ziegler
Original Assignee
Philips Intellectual Property
Koninkl Philips Electronics Nv
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
Priority to US11/911,212 priority Critical patent/US7894568B2/en
Application filed by Philips Intellectual Property, Koninkl Philips Electronics Nv, Andy Ziegler filed Critical Philips Intellectual Property
Priority to AT06727853T priority patent/ATE479119T1/en
Priority to EP06727853A priority patent/EP1875276B1/en
Priority to JP2008506016A priority patent/JP2008536138A/en
Priority to DE602006016424T priority patent/DE602006016424D1/en
Publication of WO2006109227A2 publication Critical patent/WO2006109227A2/en
Publication of WO2006109227A3 publication Critical patent/WO2006109227A3/en

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01T—MEASUREMENT OF NUCLEAR OR X-RADIATION
    • G01T1/00—Measuring X-radiation, gamma radiation, corpuscular radiation, or cosmic radiation
    • G01T1/29—Measurement performed on radiation beams, e.g. position or section of the beam; Measurement of spatial distribution of radiation
    • G01T1/2914—Measurement of spatial distribution of radiation
    • G01T1/2985—In depth localisation, e.g. using positron emitters; Tomographic imaging (longitudinal and transverse section imaging; apparatus for radiation diagnosis sequentially in different planes, steroscopic radiation diagnosis)

Abstract

The reconstruction of the energy distribution at a detector with a detector element that consists of many small pixels, which count the number of photons above certain thresholds, is performed with a Maximum Likelihood analysis, according to an aspect of the present invention. Thus, the reconstruction scheme may use the redundancy in the measurement and may treat the Poisson statistics accordingly.
PCT/IB2006/051068 2005-04-14 2006-04-07 Energy distribution reconstruction in ct WO2006109227A2 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
US11/911,212 US7894568B2 (en) 2005-04-14 2006-04-04 Energy distribution reconstruction in CT
AT06727853T ATE479119T1 (en) 2005-04-14 2006-04-07 RECONSTRUCTION OF ENERGY DISTRIBUTION IN COMPUTER TOMOGRAPHY
EP06727853A EP1875276B1 (en) 2005-04-14 2006-04-07 Energy distribution reconstruction in ct
JP2008506016A JP2008536138A (en) 2005-04-14 2006-04-07 Energy distribution reconstruction in CT
DE602006016424T DE602006016424D1 (en) 2005-04-14 2006-04-07 RECONSTRUCTION OF ENERGY DISTRIBUTION IN COMPUTER TOMOGRAPHY

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP05102971 2005-04-14
EP05102971.8 2005-04-14

Publications (2)

Publication Number Publication Date
WO2006109227A2 WO2006109227A2 (en) 2006-10-19
WO2006109227A3 true WO2006109227A3 (en) 2006-12-07

Family

ID=36910973

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2006/051068 WO2006109227A2 (en) 2005-04-14 2006-04-07 Energy distribution reconstruction in ct

Country Status (6)

Country Link
US (1) US7894568B2 (en)
EP (1) EP1875276B1 (en)
JP (1) JP2008536138A (en)
AT (1) ATE479119T1 (en)
DE (1) DE602006016424D1 (en)
WO (1) WO2006109227A2 (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2427858C2 (en) * 2006-07-10 2011-08-27 Конинклейке Филипс Электроникс, Н.В. Energy spectrum reconstruction
ATE484042T1 (en) * 2006-08-15 2010-10-15 Koninkl Philips Electronics Nv MOVEMENT COMPENSATION IN ENERGY SENSITIVE COMPUTER TOMOGRAPHY
US7693261B2 (en) * 2007-05-17 2010-04-06 Durham Scientific Crystals Limited Method and apparatus for inspection of materials
US8908953B2 (en) * 2007-06-11 2014-12-09 Koninklijke Philips N.V. Imaging system and imaging method for imaging a region of interest
US8422636B2 (en) * 2010-10-12 2013-04-16 Ge Medical Systems Israel, Ltd. Photon counting and energy discriminating detector threshold calibration
CN105612416B (en) * 2013-07-25 2019-01-01 模拟技术公司 The generation of the diffractive features of article in object
JP6495923B2 (en) 2013-09-17 2019-04-03 コーニンクレッカ フィリップス エヌ ヴェＫｏｎｉｎｋｌｉｊｋｅ Ｐｈｉｌｉｐｓ Ｎ．Ｖ． Descattering method via energy calibration
WO2015052000A1 (en) * 2013-10-09 2015-04-16 Koninklijke Philips N.V. Method and device for generating an energy-resolved x-ray image with adapted energy threshold
JP6531108B2 (en) * 2013-10-23 2019-06-12 ナノヴィジョン・テクノロジー・（ベイジン）・カンパニー・リミテッド Radiation imaging system, method and device based on photon counting
US11058369B2 (en) 2019-11-15 2021-07-13 GE Precision Healthcare LLC Systems and methods for coherent scatter imaging using a segmented photon-counting detector for computed tomography

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5530248A (en) * 1991-06-09 1996-06-25 Elscint Ltd. Method of and apparatus for improving gamma camera image
US5565684A (en) * 1995-06-30 1996-10-15 The University Of Utah Three-dimensional SPECT reconstruction of combined cone-beam and fan-beam data

Family Cites Families (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3808444A (en) * 1973-01-05 1974-04-30 Westinghouse Electric Corp X-ray contrast detection system
US4789930A (en) * 1985-11-15 1988-12-06 Picker International, Inc. Energy dependent gain correction for radiation detection
IL87570A (en) * 1988-08-26 1991-12-12 Israel Atomic Energy Comm Method and apparatus for the detection and imaging of heavy metals
US5179581A (en) * 1989-09-13 1993-01-12 American Science And Engineering, Inc. Automatic threat detection based on illumination by penetrating radiant energy
IL94691A0 (en) * 1990-06-11 1991-04-15 Elscint Ltd Compton free gamma camera images
JPH07117586B2 (en) * 1991-09-17 1995-12-18 株式会社島津製作所 Radiation image pickup device
US5602891A (en) * 1995-11-13 1997-02-11 Beth Israel Imaging apparatus and method with compensation for object motion
US6018562A (en) * 1995-11-13 2000-01-25 The United States Of America As Represented By The Secretary Of The Army Apparatus and method for automatic recognition of concealed objects using multiple energy computed tomography
US5974111A (en) * 1996-09-24 1999-10-26 Vivid Technologies, Inc. Identifying explosives or other contraband by employing transmitted or scattered X-rays
US6026143A (en) * 1998-02-11 2000-02-15 Analogic Corporation Apparatus and method for detecting sheet objects in computed tomography data
US6236709B1 (en) * 1998-05-04 2001-05-22 Ensco, Inc. Continuous high speed tomographic imaging system and method
US6470070B2 (en) * 2000-12-20 2002-10-22 Cedara Software Corp. Image reconstruction using multiple X-ray projections
US6507633B1 (en) * 2001-02-15 2003-01-14 The Regents Of The University Of Michigan Method for statistically reconstructing a polyenergetic X-ray computed tomography image and image reconstructor apparatus utilizing the method
GB0115615D0 (en) * 2001-06-27 2001-08-15 Univ Coventry Image segmentation
WO2003034270A1 (en) * 2001-10-17 2003-04-24 Commonwealth Scientific And Industrial Research Organisation Method and apparatus for identifying diagnostic components of a system
US6754298B2 (en) * 2002-02-20 2004-06-22 The Regents Of The University Of Michigan Method for statistically reconstructing images from a plurality of transmission measurements having energy diversity and image reconstructor apparatus utilizing the method
JP2003279503A (en) * 2002-03-22 2003-10-02 Shimadzu Corp X-ray inspection apparatus
EP1526808B1 (en) * 2002-07-23 2013-01-09 GE Medical Systems Global Technology Company LLC Systems for detecting components of plaque
US7103137B2 (en) * 2002-07-24 2006-09-05 Varian Medical Systems Technology, Inc. Radiation scanning of objects for contraband
US7054406B2 (en) * 2002-09-05 2006-05-30 Kabushiki Kaisha Toshiba X-ray CT apparatus and method of measuring CT values
US6898263B2 (en) * 2002-11-27 2005-05-24 Ge Medical Systems Global Technology Company, Llc Method and apparatus for soft-tissue volume visualization
JP2004325183A (en) * 2003-04-23 2004-11-18 M & C:Kk Radiation detection method, radiation detector, and radiation imaging system with this detector loaded thereon
EP1633251A1 (en) * 2003-05-28 2006-03-15 Philips Intellectual Property & Standards GmbH Fan-beam coherent-scatter computer tomography
US20050117700A1 (en) * 2003-08-08 2005-06-02 Peschmann Kristian R. Methods and systems for the rapid detection of concealed objects
GB2416223A (en) * 2004-07-15 2006-01-18 Medicsight Plc Quantification of coronary artery calcification
GB0425112D0 (en) * 2004-11-13 2004-12-15 Koninkl Philips Electronics Nv Computer tomography apparatus and method for examining an object of interest

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5530248A (en) * 1991-06-09 1996-06-25 Elscint Ltd. Method of and apparatus for improving gamma camera image
US5565684A (en) * 1995-06-30 1996-10-15 The University Of Utah Three-dimensional SPECT reconstruction of combined cone-beam and fan-beam data

Non-Patent Citations (4)

* Cited by examiner, † Cited by third party
Title
BERT CH ET AL: "Computed tomography using the Medipix1 chip", NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH, SECTION - A: ACCELERATORS, SPECTROMETERS, DETECTORS AND ASSOCIATED EQUIPMENT, ELSEVIER, AMSTERDAM, NL, vol. 509, no. 1-3, 21 August 2003 (2003-08-21), pages 240 - 250, XP004446797, ISSN: 0168-9002 *
FESSLER J A ET AL: "Maximum-likelihood dual-energy tomographic image reconstruction", PROCEEDINGS OF THE SPIE - THE INTERNATIONAL SOCIETY FOR OPTICAL ENGINEERING SPIE-INT. SOC. OPT. ENG USA, vol. 4684, 2002, pages 38 - 49, XP002397241, ISSN: 0277-786X *
HARDING G: "X-ray scatter tomography for explosives detection", RADIATION PHYSICS AND CHEMISTRY, ELSEVIER SCIENCE PUBLISHERS BV., AMSTERDAM, NL, vol. 71, no. 3-4, October 2004 (2004-10-01), pages 869 - 881, XP004532582, ISSN: 0969-806X *
KUDO H ET AL: "Newton-SOR method for fast statistical tomographic image reconstruction", SYSTEMS AND COMPUTERS IN JAPAN SCRIPTA TECHNICA USA, vol. 34, no. 4, April 2003 (2003-04-01), pages 1 - 11, XP002397239, ISSN: 0882-1666 *

Also Published As

Publication number Publication date
EP1875276A2 (en) 2008-01-09
US20090268862A1 (en) 2009-10-29
WO2006109227A2 (en) 2006-10-19
EP1875276B1 (en) 2010-08-25
ATE479119T1 (en) 2010-09-15
US7894568B2 (en) 2011-02-22
JP2008536138A (en) 2008-09-04
DE602006016424D1 (en) 2010-10-07

Similar Documents

Publication Publication Date Title
WO2006109227A3 (en) Energy distribution reconstruction in ct
NL1032847A1 (en) CT device operating with X-rays and CT fluoroscopic device operating with X-rays.
EP2219726A4 (en) Medical electrode, electrode bundle and electrode bundle array
WO2010075384A3 (en) Scintillation separator
EP1850484A4 (en) Basic matrix based on irregular ldcp, codec and generation method thereof
GB2464592B (en) Ion guide array
NL1032581A1 (en) X-ray CT equipment.
EP2599103A4 (en) Electron detector including an intimately-coupled scintillator-photomultiplier combination, and electron microscope and x-ray detector employing same
IL186840A0 (en) Photodetection unit, photodetector, and x-ray computed tomography apparatus
EP1908171A4 (en) Forward error-correcting (fec) coding and streaming
NL1033936A1 (en) X-ray CT equipment.
NL1033652A1 (en) X-ray CT equipment.
EP2359347A4 (en) Determining document fitness using sequenced illumination
EP1876271A4 (en) X-ray contrast filament, x-ray contrast covered filament, and fiber structure using said x-ray contrast filament and/or x-ray contrast covered filament
EP1955159A4 (en) Log collection, structuring and processing
IL183619A0 (en) X-ray detectors with adjustable active area electrode assembly
GB2437208B (en) Superconducting x-ray detector and x-ray analysis apparatus using the same
NL1033813A1 (en) Radiation imaging equipment and radiation imaging method.
DE602006008994D1 (en) Scintillator part and manufacturing method therefor, and radiation measuring device
FR2895268B1 (en) INDIVIDUAL PROTECTION EQUIPMENT AGAINST FALLS, PARTICULARLY IN THE MOUNTAIN.
EP1897916A4 (en) Carbon black loaded composition, colorant composition and conductive composition
WO2010027690A3 (en) Compact pet scanner
Hurwic et al. Marie Skłodowska-Curie et la radioactivité
IT1392354B1 (en) NEW METHODS AND DEVICES FOR SAMPLING AND DETECTING RADON, ITS DECAY PRODUCTS AND OTHER RADIONUCLIDS PRESENT IN THE ATMOSPHERE.
Ågren Family Welfare. Gender, Property, and Inheritance since the Seventeenth Century

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application
WWE Wipo information: entry into national phase

Ref document number: 2006727853

Country of ref document: EP

WWE Wipo information: entry into national phase

Ref document number: 11911212

Country of ref document: US

WWE Wipo information: entry into national phase

Ref document number: 2008506016

Country of ref document: JP

NENP Non-entry into the national phase

Ref country code: DE

WWW Wipo information: withdrawn in national office

Country of ref document: DE

NENP Non-entry into the national phase

Ref country code: RU

WWW Wipo information: withdrawn in national office

Country of ref document: RU

WWP Wipo information: published in national office

Ref document number: 2006727853

Country of ref document: EP