FR2363796A1 - Appareil de reconstitution d'un tomogramme de la section transversale d'un objet - Google Patents

Appareil de reconstitution d'un tomogramme de la section transversale d'un objet

Info

Publication number
FR2363796A1
FR2363796A1 FR7726995A FR7726995A FR2363796A1 FR 2363796 A1 FR2363796 A1 FR 2363796A1 FR 7726995 A FR7726995 A FR 7726995A FR 7726995 A FR7726995 A FR 7726995A FR 2363796 A1 FR2363796 A1 FR 2363796A1
Authority
FR
France
Prior art keywords
tomogram
cross
section
reconstituting
stored
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
FR7726995A
Other languages
English (en)
Other versions
FR2363796B1 (fr
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.)
Optische Industrie de Oude Delft NV
Original Assignee
Optische Industrie de Oude Delft NV
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 Optische Industrie de Oude Delft NV filed Critical Optische Industrie de Oude Delft NV
Publication of FR2363796A1 publication Critical patent/FR2363796A1/fr
Application granted granted Critical
Publication of FR2363796B1 publication Critical patent/FR2363796B1/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
    • 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)
  • Analysing Materials By The Use Of Radiation (AREA)
  • Apparatus For Radiation Diagnosis (AREA)

Abstract

L'invention concerne un appareil de reconstitution, élément par élément, d'un tomogramme de la section transversale d'un objet. Des données de profils de signaux modifiés obtenus en exposant l'objet à un faisceau plat de rayonnement pénétrant sous des angles différents sont mémorisées en forme analogique suivant des trajets primaires liés uniquement à l'angle d'incidence, et les éléments d'informations mémorisées sont ensuite lus suivant des trajets secondaires pour être intégrés. L'invention s'applique notamment au diagnostic médical.
FR7726995A 1976-09-06 1977-09-06 Appareil de reconstitution d'un tomogramme de la section transversale d'un objet Granted FR2363796A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL7609885A NL7609885A (nl) 1976-09-06 1976-09-06 Stelsel voor het elementsgewijs reconstrueren van een tomogram van een dwarsdoorsnede van een object.

Publications (2)

Publication Number Publication Date
FR2363796A1 true FR2363796A1 (fr) 1978-03-31
FR2363796B1 FR2363796B1 (fr) 1984-02-10

Family

ID=19826851

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7726995A Granted FR2363796A1 (fr) 1976-09-06 1977-09-06 Appareil de reconstitution d'un tomogramme de la section transversale d'un objet

Country Status (11)

Country Link
US (1) US4209827A (fr)
JP (1) JPS5332688A (fr)
CA (1) CA1085518A (fr)
CH (1) CH627934A5 (fr)
DE (1) DE2739001C2 (fr)
FR (1) FR2363796A1 (fr)
GB (1) GB1583055A (fr)
IL (1) IL52875A0 (fr)
IT (1) IT1084217B (fr)
NL (1) NL7609885A (fr)
SE (1) SE7709951L (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0022299A1 (fr) * 1979-07-06 1981-01-14 Koninklijke Philips Electronics N.V. Procédé et dispositif pour déterminer la répartition de l'absorption de la radiation dans un plan d'un corps

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6944322B2 (en) * 2001-03-28 2005-09-13 Visiongate, Inc. Optical tomography of small objects using parallel ray illumination and post-specimen optical magnification
US6991738B1 (en) 2004-10-13 2006-01-31 University Of Washington Flow-through drum centrifuge
DE102007026909B4 (de) * 2007-06-12 2013-04-11 Siemens Aktiengesellschaft Digitales Röntgenbildaufnahmesystem, Verfahren zum Erzeugen eines Bilddatensatzes und Verfahren zum reproduzierbaren Erzeugen von Röntgenbildaufnahmen
WO2017117210A1 (fr) 2015-12-30 2017-07-06 Visiongate, Inc. Système et procédé automatisé de détection et de surveillance de dysplasie et d'administration de chimio-prévention

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3499146A (en) * 1966-10-10 1970-03-03 Albert G Richards Variable depth laminagraphy with means for highlighting the detail of selected lamina
FR2019365A1 (fr) * 1968-08-23 1970-07-03 Emi Ltd
DE2521230A1 (de) * 1973-04-26 1975-11-27 Emi Ltd Radiologisches geraet
FR2280919A1 (fr) * 1974-08-03 1976-02-27 Philips Nv Procede et dispositif pour la tomosynthese
FR2289973A1 (fr) * 1974-10-28 1976-05-28 Optische Ind De Oude Delft Nv Correlateur electro-optique
FR2292985A1 (fr) * 1974-11-29 1976-06-25 Univ Leland Stanford Junior Detecteur de rayons x ou g sensible a la position et procede de tomographie a trois dimensions utilisant ce detecteur

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1509176A (en) * 1974-05-09 1978-04-26 Emi Ltd Radiography
GB1478123A (en) * 1973-08-18 1977-06-29 Emi Ltd Tomography
DE2442412A1 (de) * 1974-09-05 1976-03-18 Philips Patentverwaltung Anordnung zur ermittlung der verteilung der absorption oder der emission von strahlung in einer ebene eines koerpers
DE2442809A1 (de) * 1974-09-06 1976-03-18 Philips Patentverwaltung Anordnung zur ermittlung der absorption in einem koerper
US4044240A (en) * 1975-11-28 1977-08-23 Picker Corporation Tomography system having an ultra high speed processing unit
US4066900A (en) * 1976-03-19 1978-01-03 Emi Limited Technique for cat utilizing composite beam paths which are wider at their ends than therebetween

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3499146A (en) * 1966-10-10 1970-03-03 Albert G Richards Variable depth laminagraphy with means for highlighting the detail of selected lamina
FR2019365A1 (fr) * 1968-08-23 1970-07-03 Emi Ltd
DE2521230A1 (de) * 1973-04-26 1975-11-27 Emi Ltd Radiologisches geraet
FR2280919A1 (fr) * 1974-08-03 1976-02-27 Philips Nv Procede et dispositif pour la tomosynthese
FR2289973A1 (fr) * 1974-10-28 1976-05-28 Optische Ind De Oude Delft Nv Correlateur electro-optique
FR2292985A1 (fr) * 1974-11-29 1976-06-25 Univ Leland Stanford Junior Detecteur de rayons x ou g sensible a la position et procede de tomographie a trois dimensions utilisant ce detecteur

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0022299A1 (fr) * 1979-07-06 1981-01-14 Koninklijke Philips Electronics N.V. Procédé et dispositif pour déterminer la répartition de l'absorption de la radiation dans un plan d'un corps

Also Published As

Publication number Publication date
US4209827A (en) 1980-06-24
IL52875A0 (en) 1977-11-30
FR2363796B1 (fr) 1984-02-10
SE7709951L (sv) 1978-03-07
CA1085518A (fr) 1980-09-09
DE2739001C2 (de) 1985-02-28
NL7609885A (nl) 1978-03-08
JPS5332688A (en) 1978-03-28
DE2739001A1 (de) 1978-04-27
CH627934A5 (de) 1982-02-15
IT1084217B (it) 1985-05-25
GB1583055A (en) 1981-01-21
IL52875A (fr) 1980-12-31

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Legal Events

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ST Notification of lapse