FR2446626A1 - Appareil permettant d'obtenir une tomographie a l'aide d'un faisceau en eventail - Google Patents

Appareil permettant d'obtenir une tomographie a l'aide d'un faisceau en eventail

Info

Publication number
FR2446626A1
FR2446626A1 FR8001331A FR8001331A FR2446626A1 FR 2446626 A1 FR2446626 A1 FR 2446626A1 FR 8001331 A FR8001331 A FR 8001331A FR 8001331 A FR8001331 A FR 8001331A FR 2446626 A1 FR2446626 A1 FR 2446626A1
Authority
FR
France
Prior art keywords
subject
rays
plane
fan beam
absorbed
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.)
Granted
Application number
FR8001331A
Other languages
English (en)
French (fr)
Other versions
FR2446626B1 (OSRAM
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
Tokyo Shibaura Electric Co Ltd
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 Tokyo Shibaura Electric Co Ltd filed Critical Tokyo Shibaura Electric Co Ltd
Publication of FR2446626A1 publication Critical patent/FR2446626A1/fr
Application granted granted Critical
Publication of FR2446626B1 publication Critical patent/FR2446626B1/fr
Granted legal-status Critical Current

Links

Classifications

    • 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]
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T12/00—Tomographic reconstruction from projections
    • G06T12/20—Inverse problem, i.e. transformations from projection space into object space
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T2211/00—Image generation
    • G06T2211/40—Computed tomography
    • G06T2211/421—Filtered back projection [FBP]
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Medical Informatics (AREA)
  • Pathology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Pulmonology (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Optics & Photonics (AREA)
  • General Physics & Mathematics (AREA)
  • Radiology & Medical Imaging (AREA)
  • Biomedical Technology (AREA)
  • Biophysics (AREA)
  • Molecular Biology (AREA)
  • Surgery (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Apparatus For Radiation Diagnosis (AREA)
  • Analysing Materials By The Use Of Radiation (AREA)
  • Image Processing (AREA)
FR8001331A 1979-01-22 1980-01-22 Appareil permettant d'obtenir une tomographie a l'aide d'un faisceau en eventail Granted FR2446626A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP476079A JPS5599240A (en) 1979-01-22 1979-01-22 Ct scanner

Publications (2)

Publication Number Publication Date
FR2446626A1 true FR2446626A1 (fr) 1980-08-14
FR2446626B1 FR2446626B1 (OSRAM) 1985-05-17

Family

ID=11592838

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8001331A Granted FR2446626A1 (fr) 1979-01-22 1980-01-22 Appareil permettant d'obtenir une tomographie a l'aide d'un faisceau en eventail

Country Status (6)

Country Link
US (1) US4313163A (OSRAM)
JP (1) JPS5599240A (OSRAM)
DE (1) DE3002187A1 (OSRAM)
FR (1) FR2446626A1 (OSRAM)
GB (1) GB2042847B (OSRAM)
NL (1) NL8000354A (OSRAM)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4412289A (en) * 1980-02-13 1983-10-25 The President Of Tokyo Institute Of Technology Reconstruction method of X-ray computed tomography
JPS58118735A (ja) * 1982-01-06 1983-07-14 株式会社東芝 コンピユ−タ断層撮影装置
FR2527339A1 (fr) * 1982-05-21 1983-11-25 Schlumberger Etienne Procede et installation pour analyser des discontinuites situees dans un milieu sensiblement homogene
US4570224A (en) * 1982-11-29 1986-02-11 Elscint, Inc. Combining rebinned and unrebinned parallel ray data with unequal lateral spacing to create tomograph images
US4581581A (en) * 1983-06-30 1986-04-08 General Electric Company Method of projection reconstruction imaging with reduced sensitivity to motion-related artifacts
US4578753A (en) * 1983-08-29 1986-03-25 Elscint Ltd. Systems and methods for minimizing noncoplanarity artifacts
DE4235183C2 (de) * 1992-10-19 1997-10-23 Fraunhofer Ges Forschung Verfahren zur Erzeugung von Schichtaufnahmen von einem Meßobjekt mittels Röntgenstrahlung
US5396890A (en) * 1993-09-30 1995-03-14 Siemens Medical Systems, Inc. Three-dimensional scan converter for ultrasound imaging
US5838756A (en) * 1996-01-08 1998-11-17 Kabushiki Kaisha Toshiba Radiation computed tomography apparatus
US8218720B2 (en) * 2007-03-12 2012-07-10 Varian Medical Systems, Inc. Method and apparatus to facilitate reconstructing an image using fan-beam data
JP6370280B2 (ja) * 2015-09-16 2018-08-08 富士フイルム株式会社 断層画像生成装置、方法およびプログラム
CN105590331B (zh) * 2015-12-11 2018-09-18 沈阳东软医疗系统有限公司 Ct扫描数据的背景校正方法及装置

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1531229A (en) * 1974-12-19 1978-11-08 Emi Ltd Radiography
DE2511231A1 (de) * 1975-03-14 1976-09-23 Philips Patentverwaltung Anordnung zur ermittlung der absorption einer strahlung in einer ebene eines koerpers
DE2521796C3 (de) * 1975-05-16 1979-12-13 Philips Patentverwaltung Gmbh, 2000 Hamburg Anordnung zur Ermittlung der räumlichen Verteilung der Absorption oder der Emission von Strahlung in einer Ebene eines Körpers
GB1594751A (en) * 1977-01-31 1981-08-05 Tokyo Shibaura Electric Co Method and apparatus for tomography by means of penetrating radiation
JPS5394787A (en) * 1977-01-31 1978-08-19 Toshiba Corp Tomographic diagnostic equipment by radiation
JPS5438789A (en) * 1977-09-02 1979-03-23 Hitachi Medical Corp Tomography
GB1602072A (en) * 1978-05-12 1981-11-04 Emi Ltd Processing arrangements for constructing representations of parts of bodies

Also Published As

Publication number Publication date
FR2446626B1 (OSRAM) 1985-05-17
GB2042847B (en) 1983-05-05
NL8000354A (nl) 1980-07-24
US4313163A (en) 1982-01-26
DE3002187A1 (de) 1980-07-24
GB2042847A (en) 1980-09-24
JPS5599240A (en) 1980-07-29

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Legal Events

Date Code Title Description
CD Change of name or company name
ST Notification of lapse