DE60213552D1 - Röntgencomputertomograf mit Logarithmusumwandlung - Google Patents

Röntgencomputertomograf mit Logarithmusumwandlung

Info

Publication number
DE60213552D1
DE60213552D1 DE60213552T DE60213552T DE60213552D1 DE 60213552 D1 DE60213552 D1 DE 60213552D1 DE 60213552 T DE60213552 T DE 60213552T DE 60213552 T DE60213552 T DE 60213552T DE 60213552 D1 DE60213552 D1 DE 60213552D1
Authority
DE
Germany
Prior art keywords
computer tomograph
ray computer
logarithm conversion
logarithm
conversion
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 - Lifetime
Application number
DE60213552T
Other languages
English (en)
Other versions
DE60213552T2 (de
Inventor
Issei Mori
Akira Adachi
Masahiro Kazama
Satoshi Saito
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Toshiba Corp
Original Assignee
Toshiba Corp
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 Toshiba Corp filed Critical Toshiba Corp
Publication of DE60213552D1 publication Critical patent/DE60213552D1/de
Application granted granted Critical
Publication of DE60213552T2 publication Critical patent/DE60213552T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B6/00—Apparatus for radiation diagnosis, e.g. combined with radiation therapy equipment
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N23/00—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00
    • G01N23/02—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by transmitting the radiation through the material
    • G01N23/04—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by transmitting the radiation through the material and forming images of the material
    • G01N23/046—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by transmitting the radiation through the material and forming images of the material using tomography, e.g. computed tomography [CT]
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2223/00—Investigating materials by wave or particle radiation
    • G01N2223/40—Imaging
    • G01N2223/419—Imaging computed tomograph
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S378/00—X-ray or gamma ray systems or devices
    • Y10S378/901—Computer tomography program or processor
DE60213552T 2002-02-19 2002-10-14 Röntgencomputertomograf mit Logarithmusumwandlung Expired - Lifetime DE60213552T2 (de)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP2002041166 2002-02-19
JP2002041166 2002-02-19
JP2002287330 2002-09-30
JP2002287330A JP4363834B2 (ja) 2002-02-19 2002-09-30 Ｘ線コンピュータ断層撮影装置

Publications (2)

Publication Number Publication Date
DE60213552D1 true DE60213552D1 (de) 2006-09-14
DE60213552T2 DE60213552T2 (de) 2007-10-04

Family

ID=27624627

Family Applications (1)

Application Number Title Priority Date Filing Date
DE60213552T Expired - Lifetime DE60213552T2 (de) 2002-02-19 2002-10-14 Röntgencomputertomograf mit Logarithmusumwandlung

Country Status (4)

Country Link
US (1) US6829324B2 (de)
EP (1) EP1336836B1 (de)
JP (1) JP4363834B2 (de)
DE (1) DE60213552T2 (de)

Families Citing this family (18)

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US7270227B2 (en) * 2003-10-29 2007-09-18 Lockheed Martin Corporation Material handling system and method of use
US7183906B2 (en) * 2004-03-19 2007-02-27 Lockheed Martin Corporation Threat scanning machine management system
US20050251398A1 (en) * 2004-05-04 2005-11-10 Lockheed Martin Corporation Threat scanning with pooled operators
US7212113B2 (en) * 2004-05-04 2007-05-01 Lockheed Martin Corporation Passenger and item tracking with system alerts
US20060282886A1 (en) * 2005-06-09 2006-12-14 Lockheed Martin Corporation Service oriented security device management network
US7684421B2 (en) * 2005-06-09 2010-03-23 Lockheed Martin Corporation Information routing in a distributed environment
JP5635732B2 (ja) * 2005-12-15 2014-12-03 コーニンクレッカ フィリップス エヌ ヴェ 複数繰り返しアルゴリズムの進行的な収束
US10064584B2 (en) * 2005-12-22 2018-09-04 Visen Medical, Inc. Combined x-ray and optical tomographic imaging system
US20090016482A1 (en) * 2006-01-05 2009-01-15 Koninklijke Philips Electronics N. V. Artifact suppression
US20080060910A1 (en) * 2006-09-08 2008-03-13 Shawn Younkin Passenger carry-on bagging system for security checkpoints
US8260019B2 (en) 2007-08-17 2012-09-04 General Electric Company Methods and apparatus for data communication across a slip ring
WO2011053296A1 (en) * 2009-10-29 2011-05-05 Analogic Corporation Three-dimensional scanner data compression
WO2011065079A1 (ja) * 2009-11-26 2011-06-03 コニカミノルタエムジー株式会社 放射線画像撮影システムおよび放射線画像撮影装置
JP5788245B2 (ja) * 2011-07-06 2015-09-30 株式会社東芝 Ｘ線ｃｔ装置
JP6379114B2 (ja) * 2014-01-28 2018-08-22 株式会社日立製作所 Ｘ線ｃｔ装置、および、ｘ線ｃｔ装置用画像演算装置
US10213176B2 (en) * 2016-04-27 2019-02-26 Toshiba Medical Systems Corporation Apparatus and method for hybrid pre-log and post-log iterative image reconstruction for computed tomography
JP7258473B2 (ja) * 2018-05-01 2023-04-17 キヤノンメディカルシステムズ株式会社 Ｘ線ｃｔ装置及び撮影条件管理装置
CN113539440B (zh) * 2021-07-20 2023-11-21 东软医疗系统股份有限公司 Ct图像重建方法及装置、存储介质、计算机设备

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55156431A (en) 1979-05-24 1980-12-05 Sony Corp Noise reduction system
NL8202417A (nl) 1982-06-15 1984-01-02 Philips Nv Inrichting en werkwijze voor het verwerken van roentgenbeelden.
JPH0685565B2 (ja) 1985-11-14 1994-10-26 コニカ株式会社 Ｘ線フイルム画像読取方法
JPH05261093A (ja) 1992-03-17 1993-10-12 Toshiba Corp アーチファクト補正方式及びそのｃｔ装置
JP3408848B2 (ja) 1993-11-02 2003-05-19 株式会社日立メディコ 散乱ｘ線補正法及びｘ線ｃｔ装置並びに多チャンネルｘ線検出器
JP3400063B2 (ja) 1994-02-15 2003-04-28 株式会社東芝 コンピュータ断層撮影装置
JP3589769B2 (ja) 1995-12-19 2004-11-17 株式会社日立メディコ Ｘ線ｃｔ装置
JP3805107B2 (ja) * 1998-06-24 2006-08-02 株式会社日立メディコ Ｘ線を用いた計測装置
US6055291A (en) * 1998-08-25 2000-04-25 General Electric Company Systems, methods and apparatus for reconstructing images
US6201849B1 (en) * 1999-08-16 2001-03-13 Analogic Corporation Apparatus and method for reconstruction of volumetric images in a helical scanning cone-beam computed tomography system
JP2001119583A (ja) 1999-10-21 2001-04-27 Fuji Photo Film Co Ltd 画像情報読取方法および装置
US6385278B1 (en) * 2000-04-28 2002-05-07 Ge Medical Systems Global Technology Company, Llc Method and apparatus for region of interest multislice CT scan
JP4805447B2 (ja) 2000-10-16 2011-11-02 株式会社東芝 Ｘ線コンピュータ断層撮影装置
US6415013B1 (en) * 2000-12-28 2002-07-02 Ge Medical Systems Global Technology Company, Llc Backprojection methods and apparatus for computed tomography imaging systems
US6490335B1 (en) * 2001-11-21 2002-12-03 Ge Medical Systems Global Technologies Company Llc Helical segment image reconstruction

Also Published As

Publication number Publication date
EP1336836B1 (de) 2006-08-02
EP1336836A3 (de) 2004-04-21
JP2003310600A (ja) 2003-11-05
EP1336836A2 (de) 2003-08-20
JP4363834B2 (ja) 2009-11-11
US20030156679A1 (en) 2003-08-21
US6829324B2 (en) 2004-12-07
DE60213552T2 (de) 2007-10-04

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Legal Events

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8320 Willingness to grant licences declared (paragraph 23)
8364 No opposition during term of opposition