FR2485790A1 - Systeme de filtration, a effet modulable a distance et appareil de radiologie comportant un tel systeme - Google Patents

Systeme de filtration, a effet modulable a distance et appareil de radiologie comportant un tel systeme Download PDF

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Publication number
FR2485790A1
FR2485790A1 FR8013966A FR8013966A FR2485790A1 FR 2485790 A1 FR2485790 A1 FR 2485790A1 FR 8013966 A FR8013966 A FR 8013966A FR 8013966 A FR8013966 A FR 8013966A FR 2485790 A1 FR2485790 A1 FR 2485790A1
Authority
FR
France
Prior art keywords
filter
filtration system
blades
image
display member
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
FR8013966A
Other languages
English (en)
French (fr)
Other versions
FR2485790B1 (enExample
Inventor
Jean Caugant
Jacques Dale
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.)
Compagnie Generale de Radiologie SA
Original Assignee
Compagnie Generale de Radiologie SA
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 Compagnie Generale de Radiologie SA filed Critical Compagnie Generale de Radiologie SA
Priority to FR8013966A priority Critical patent/FR2485790A1/fr
Publication of FR2485790A1 publication Critical patent/FR2485790A1/fr
Application granted granted Critical
Publication of FR2485790B1 publication Critical patent/FR2485790B1/fr
Granted legal-status Critical Current

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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]
    • 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
    • A61B6/40—Arrangements for generating radiation specially adapted for radiation diagnosis
    • A61B6/4035—Arrangements for generating radiation specially adapted for radiation diagnosis the source being combined with a filter or grating
    • 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
    • A61B6/54—Control of apparatus or devices for radiation diagnosis
    • A61B6/548—Remote control of the apparatus or devices
    • G—PHYSICS
    • G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21K—TECHNIQUES FOR HANDLING PARTICLES OR IONISING RADIATION NOT OTHERWISE PROVIDED FOR; IRRADIATION DEVICES; GAMMA RAY OR X-RAY MICROSCOPES
    • G21K1/00—Arrangements for handling particles or ionising radiation, e.g. focusing or moderating
    • G21K1/02—Arrangements for handling particles or ionising radiation, e.g. focusing or moderating using diaphragms, collimators
    • G21K1/04—Arrangements for handling particles or ionising radiation, e.g. focusing or moderating using diaphragms, collimators using variable diaphragms, shutters, choppers
    • G—PHYSICS
    • G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21K—TECHNIQUES FOR HANDLING PARTICLES OR IONISING RADIATION NOT OTHERWISE PROVIDED FOR; IRRADIATION DEVICES; GAMMA RAY OR X-RAY MICROSCOPES
    • G21K1/00—Arrangements for handling particles or ionising radiation, e.g. focusing or moderating
    • G21K1/02—Arrangements for handling particles or ionising radiation, e.g. focusing or moderating using diaphragms, collimators
    • G21K1/04—Arrangements for handling particles or ionising radiation, e.g. focusing or moderating using diaphragms, collimators using variable diaphragms, shutters, choppers
    • G21K1/046—Arrangements for handling particles or ionising radiation, e.g. focusing or moderating using diaphragms, collimators using variable diaphragms, shutters, choppers varying the contour of the field, e.g. multileaf collimators

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Medical Informatics (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Animal Behavior & Ethology (AREA)
  • Optics & Photonics (AREA)
  • Pathology (AREA)
  • Radiology & Medical Imaging (AREA)
  • Biomedical Technology (AREA)
  • Biophysics (AREA)
  • Molecular Biology (AREA)
  • Surgery (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • General Engineering & Computer Science (AREA)
  • Pulmonology (AREA)
  • Theoretical Computer Science (AREA)
  • Apparatus For Radiation Diagnosis (AREA)
FR8013966A 1980-06-24 1980-06-24 Systeme de filtration, a effet modulable a distance et appareil de radiologie comportant un tel systeme Granted FR2485790A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR8013966A FR2485790A1 (fr) 1980-06-24 1980-06-24 Systeme de filtration, a effet modulable a distance et appareil de radiologie comportant un tel systeme

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8013966A FR2485790A1 (fr) 1980-06-24 1980-06-24 Systeme de filtration, a effet modulable a distance et appareil de radiologie comportant un tel systeme

Publications (2)

Publication Number Publication Date
FR2485790A1 true FR2485790A1 (fr) 1981-12-31
FR2485790B1 FR2485790B1 (enExample) 1984-09-14

Family

ID=9243444

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8013966A Granted FR2485790A1 (fr) 1980-06-24 1980-06-24 Systeme de filtration, a effet modulable a distance et appareil de radiologie comportant un tel systeme

Country Status (1)

Country Link
FR (1) FR2485790A1 (enExample)

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2530857A1 (fr) * 1982-07-23 1984-01-27 Minnesota Mining & Mfg Systeme de filtre pour appareil de radiographie
EP0146992A1 (en) * 1983-12-22 1985-07-03 Koninklijke Philips Electronics N.V. X-ray examination apparatus having a selective filter
EP0209930A1 (en) * 1985-06-21 1987-01-28 B.V. Optische Industrie "De Oude Delft" Apparatus and method for slit radiography with different x-ray energies
EP0223305A1 (en) * 1985-11-15 1987-05-27 B.V. Optische Industrie "De Oude Delft" Piezoelectric attenuation tongue system for slit radiography equipment
EP0148213A4 (en) * 1983-06-06 1988-02-23 Wisconsin Alumni Res Found Apparatus for forming an X-ray beam compensation mask and method of compensating the X-ray image of an object.
WO1988007807A1 (en) * 1987-04-02 1988-10-06 B.V. Optische Industrie "De Oude Delft" Method and apparatus for contrast equalization of an x-ray image
EP0223432A3 (en) * 1985-11-14 1988-11-02 Shih-Ping Wang X-ray radiography system
WO1989002645A1 (en) * 1987-09-07 1989-03-23 B.V. Optische Industrie "De Oude Delft" Equipment for slit radiography
EP0220770A3 (en) * 1985-10-24 1989-06-28 B.V. Optische Industrie "De Oude Delft" Radioscopic image former
WO1989012898A1 (en) * 1988-06-22 1989-12-28 B.V. Optische Industrie "De Oude Delft" Slit radiography device provided with absorption elements, and procedure for producing absorption elements
US4953189A (en) * 1985-11-14 1990-08-28 Hologic, Inc. X-ray radiography method and system
FR2654917A1 (fr) * 1989-11-24 1991-05-31 Gen Electric Cgr Appareil de radiologie avec filtre d'homogeneisation.
EP0449083A1 (en) * 1990-03-26 1991-10-02 General Electric Company Bow-tie X-ray filter assembly for dual energy tomography
WO1997013255A3 (de) * 1995-10-02 1997-06-19 Deutsches Krebsforsch Konturenkollimator für die strahlentherapie
WO2019161953A1 (de) * 2018-02-26 2019-08-29 Siemens Healthcare Gmbh Verfahren und vorrichtung zum verändern einer räumlichen intensitätsverteilung eines röntgenstrahls
GB2624858A (en) * 2022-11-25 2024-06-05 Univ Hospital Southampton Nhs Foundation Trust Radiation shield

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2116168A5 (enExample) * 1970-11-30 1972-07-07 Medinova Ab
DE2345406A1 (de) * 1973-09-08 1975-07-10 Ulrich Dr Rer Nat Wolfstieg Blende fuer die messung von roentgeninterferenzlinien

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2116168A5 (enExample) * 1970-11-30 1972-07-07 Medinova Ab
DE2345406A1 (de) * 1973-09-08 1975-07-10 Ulrich Dr Rer Nat Wolfstieg Blende fuer die messung von roentgeninterferenzlinien

Cited By (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2530857A1 (fr) * 1982-07-23 1984-01-27 Minnesota Mining & Mfg Systeme de filtre pour appareil de radiographie
EP0148213A4 (en) * 1983-06-06 1988-02-23 Wisconsin Alumni Res Found Apparatus for forming an X-ray beam compensation mask and method of compensating the X-ray image of an object.
EP0146992A1 (en) * 1983-12-22 1985-07-03 Koninklijke Philips Electronics N.V. X-ray examination apparatus having a selective filter
EP0209930A1 (en) * 1985-06-21 1987-01-28 B.V. Optische Industrie "De Oude Delft" Apparatus and method for slit radiography with different x-ray energies
EP0220770A3 (en) * 1985-10-24 1989-06-28 B.V. Optische Industrie "De Oude Delft" Radioscopic image former
EP0223432A3 (en) * 1985-11-14 1988-11-02 Shih-Ping Wang X-ray radiography system
US4953189A (en) * 1985-11-14 1990-08-28 Hologic, Inc. X-ray radiography method and system
EP0223305A1 (en) * 1985-11-15 1987-05-27 B.V. Optische Industrie "De Oude Delft" Piezoelectric attenuation tongue system for slit radiography equipment
WO1988007807A1 (en) * 1987-04-02 1988-10-06 B.V. Optische Industrie "De Oude Delft" Method and apparatus for contrast equalization of an x-ray image
WO1989002645A1 (en) * 1987-09-07 1989-03-23 B.V. Optische Industrie "De Oude Delft" Equipment for slit radiography
WO1989012898A1 (en) * 1988-06-22 1989-12-28 B.V. Optische Industrie "De Oude Delft" Slit radiography device provided with absorption elements, and procedure for producing absorption elements
FR2654917A1 (fr) * 1989-11-24 1991-05-31 Gen Electric Cgr Appareil de radiologie avec filtre d'homogeneisation.
EP0431989A1 (fr) * 1989-11-24 1991-06-12 General Electric Cgr S.A. Appareil de radiologie avec filtre d'homogénéisation
US5185775A (en) * 1989-11-24 1993-02-09 General Electric Cgr S.A. X-ray apparatus including a homogenizing filter
EP0449083A1 (en) * 1990-03-26 1991-10-02 General Electric Company Bow-tie X-ray filter assembly for dual energy tomography
WO1997013255A3 (de) * 1995-10-02 1997-06-19 Deutsches Krebsforsch Konturenkollimator für die strahlentherapie
US6188748B1 (en) 1995-10-02 2001-02-13 Deutsches Krebsforschungszentrum Stiftung Des Offentlichen Rechts Contour collimator for radiotherapy
WO2019161953A1 (de) * 2018-02-26 2019-08-29 Siemens Healthcare Gmbh Verfahren und vorrichtung zum verändern einer räumlichen intensitätsverteilung eines röntgenstrahls
US11234662B2 (en) 2018-02-26 2022-02-01 Siemens Healthcare Gmbh Method and device for changing the spatial intensity distribution of an x-ray beam
GB2624858A (en) * 2022-11-25 2024-06-05 Univ Hospital Southampton Nhs Foundation Trust Radiation shield
GB2624858B (en) * 2022-11-25 2024-11-20 Univ Hospital Southampton Nhs Foundation Trust Radiation shield

Also Published As

Publication number Publication date
FR2485790B1 (enExample) 1984-09-14

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