FR2422967A1 - Dispositif pour definir la repartition d'absorption de rayonnement dans une region d'examen plane - Google Patents

Dispositif pour definir la repartition d'absorption de rayonnement dans une region d'examen plane

Info

Publication number
FR2422967A1
FR2422967A1 FR7908960A FR7908960A FR2422967A1 FR 2422967 A1 FR2422967 A1 FR 2422967A1 FR 7908960 A FR7908960 A FR 7908960A FR 7908960 A FR7908960 A FR 7908960A FR 2422967 A1 FR2422967 A1 FR 2422967A1
Authority
FR
France
Prior art keywords
radiation
patient
distribution
measurement
defining
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
FR7908960A
Other languages
English (en)
French (fr)
Other versions
FR2422967B1 (https=
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.)
Koninklijke Philips NV
Original Assignee
Philips Gloeilampenfabrieken 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 Philips Gloeilampenfabrieken NV filed Critical Philips Gloeilampenfabrieken NV
Publication of FR2422967A1 publication Critical patent/FR2422967A1/fr
Application granted granted Critical
Publication of FR2422967B1 publication Critical patent/FR2422967B1/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
    • G06T12/10—Image preprocessing, e.g. calibration, positioning of sources or scatter correction

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)
FR7908960A 1978-04-10 1979-04-09 Dispositif pour definir la repartition d'absorption de rayonnement dans une region d'examen plane Granted FR2422967A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19782815347 DE2815347A1 (de) 1978-04-10 1978-04-10 Verfahren zur ermittlung der verteilung der absorption einer strahlung in einem ebenen untersuchungsbereich

Publications (2)

Publication Number Publication Date
FR2422967A1 true FR2422967A1 (fr) 1979-11-09
FR2422967B1 FR2422967B1 (https=) 1984-06-29

Family

ID=6036539

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7908960A Granted FR2422967A1 (fr) 1978-04-10 1979-04-09 Dispositif pour definir la repartition d'absorption de rayonnement dans une region d'examen plane

Country Status (10)

Country Link
US (1) US4309614A (https=)
JP (1) JPS54139782A (https=)
BE (1) BE875441A (https=)
CA (1) CA1126416A (https=)
DE (1) DE2815347A1 (https=)
FR (1) FR2422967A1 (https=)
GB (1) GB2024559B (https=)
IL (1) IL57155A (https=)
NL (1) NL7902669A (https=)
SE (1) SE7903070L (https=)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3632811A1 (de) * 1985-09-26 1987-04-02 Toshiba Kawasaki Kk Roentgenuntersuchungsgeraet

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4442489A (en) * 1979-06-16 1984-04-10 U.S. Philips Corporation Device for computed tomography
DE2924423A1 (de) * 1979-06-16 1980-12-18 Philips Patentverwaltung Verfahren zur ermittlung der raeumlichen verteilung der absorption von strahlung in einem ebenen bereich
JPS5615729A (en) * 1979-07-17 1981-02-16 Tokyo Shibaura Electric Co Computer tomographing device
US4412289A (en) * 1980-02-13 1983-10-25 The President Of Tokyo Institute Of Technology Reconstruction method of X-ray computed tomography
US4942596A (en) * 1988-08-31 1990-07-17 General Electric Company Adaptive enhancement of x-ray images
DE19933537B4 (de) * 1998-08-18 2005-03-17 Siemens Ag Röntgen-Computertomographie-Gerät mit Mitteln zur Modulation der Röntgenleistung einer Röntgenstrahlenquelle
US6385280B1 (en) 1998-08-18 2002-05-07 Siemens Aktiengesellschaft X-ray computed tomography apparatus with modulation of the x-ray power of the x-ray source
JP4739738B2 (ja) * 2004-12-01 2011-08-03 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 線量評価方法およびｘ線ｃｔ装置
DE102005055423A1 (de) * 2005-11-21 2007-05-31 Yxlon International X-Ray Gmbh CT-Verfahren zur Aufnahme von Projektionsdaten

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2294456A1 (fr) * 1974-12-09 1976-07-09 Siemens Ag Appareil de tomographie pour la realisation de tomographies transversales
FR2296185A1 (fr) * 1974-12-23 1976-07-23 Philips Nv Dispositif pour mesurer des differences d'absorption locale de rayonnement
FR2335854A1 (fr) * 1975-12-19 1977-07-15 Radiologie Cie Gle Appareil de tomographie axiale transverse

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4032784A (en) * 1975-08-04 1977-06-28 The Gerber Scientific Instrument Company Method and apparatus for examining a body by a beam of x-rays or other penetrating radiation

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2294456A1 (fr) * 1974-12-09 1976-07-09 Siemens Ag Appareil de tomographie pour la realisation de tomographies transversales
FR2296185A1 (fr) * 1974-12-23 1976-07-23 Philips Nv Dispositif pour mesurer des differences d'absorption locale de rayonnement
FR2335854A1 (fr) * 1975-12-19 1977-07-15 Radiologie Cie Gle Appareil de tomographie axiale transverse

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3632811A1 (de) * 1985-09-26 1987-04-02 Toshiba Kawasaki Kk Roentgenuntersuchungsgeraet

Also Published As

Publication number Publication date
GB2024559A (en) 1980-01-09
FR2422967B1 (https=) 1984-06-29
SE7903070L (sv) 1979-10-11
GB2024559B (en) 1982-08-11
JPS6253180B2 (https=) 1987-11-09
IL57155A0 (en) 1979-07-25
CA1126416A (en) 1982-06-22
JPS54139782A (en) 1979-10-30
US4309614A (en) 1982-01-05
NL7902669A (nl) 1979-10-12
DE2815347A1 (de) 1979-10-18
IL57155A (en) 1981-07-31
BE875441A (fr) 1979-10-09

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