FR2396488A1 - Appareil de radiographie medicale - Google Patents

Appareil de radiographie medicale

Info

Publication number
FR2396488A1
FR2396488A1 FR7819134A FR7819134A FR2396488A1 FR 2396488 A1 FR2396488 A1 FR 2396488A1 FR 7819134 A FR7819134 A FR 7819134A FR 7819134 A FR7819134 A FR 7819134A FR 2396488 A1 FR2396488 A1 FR 2396488A1
Authority
FR
France
Prior art keywords
detectors
radiation
source
patient
path
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
FR7819134A
Other languages
English (en)
Other versions
FR2396488B1 (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.)
EMI Ltd
Original Assignee
EMI 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 EMI Ltd filed Critical EMI Ltd
Publication of FR2396488A1 publication Critical patent/FR2396488A1/fr
Application granted granted Critical
Publication of FR2396488B1 publication Critical patent/FR2396488B1/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
    • A61B6/56—Details of data transmission or power supply, e.g. use of slip rings
    • 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
    • A61B6/42—Arrangements for detecting radiation specially adapted for radiation diagnosis
    • A61B6/4275—Arrangements for detecting radiation specially adapted for radiation diagnosis using a detector unit almost surrounding the patient, e.g. more than 180°

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Medical Informatics (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Molecular Biology (AREA)
  • Biophysics (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Optics & Photonics (AREA)
  • Pathology (AREA)
  • Radiology & Medical Imaging (AREA)
  • Biomedical Technology (AREA)
  • Physics & Mathematics (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Surgery (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Pulmonology (AREA)
  • Theoretical Computer Science (AREA)
  • Apparatus For Radiation Diagnosis (AREA)
  • Analysing Materials By The Use Of Radiation (AREA)

Abstract

Appareil de tomographie assisté d'un ordinateur; une source émettrice d'un faisceau de radiations divergent est entraînée en rotation autour du corps du patient, et un anneau de détecteurs fixe est disposé pour recevoir les radiations après leur passage dans le corps du patient, le rayon de cet anneau étant plus petit que celui de l'orbite sur laquelle est entraînée la source. Pour eviter que les radiations soient interceptées par ceux des détecteurs qui se trouvent, à un moment donné, entre source et corps du patient, des moyens sont prévus pour déplacer temporairement ces détecteurs hors du trajet du faisceau de radiations et ne maintenir dans ce trajet que les détecteurs se trouvant à l'opposé de la source. Application : diagnostiques médicaux.
FR7819134A 1977-06-29 1978-06-27 Appareil de radiographie medicale Granted FR2396488A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/811,279 US4137455A (en) 1977-06-29 1977-06-29 Medical radiographic apparatus with means for notating detector ring

Publications (2)

Publication Number Publication Date
FR2396488A1 true FR2396488A1 (fr) 1979-01-26
FR2396488B1 FR2396488B1 (fr) 1983-11-18

Family

ID=25206099

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7819134A Granted FR2396488A1 (fr) 1977-06-29 1978-06-27 Appareil de radiographie medicale

Country Status (13)

Country Link
US (1) US4137455A (fr)
JP (1) JPS5953055B2 (fr)
AU (1) AU514836B2 (fr)
BE (1) BE868477A (fr)
CA (1) CA1075379A (fr)
DE (1) DE2828963C2 (fr)
FR (1) FR2396488A1 (fr)
GB (1) GB2000656B (fr)
HK (1) HK42882A (fr)
MY (1) MY8300173A (fr)
NL (1) NL187959C (fr)
NZ (1) NZ187705A (fr)
SE (1) SE427154B (fr)

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2714759C3 (de) * 1977-04-01 1981-03-26 Siemens AG, 1000 Berlin und 8000 München Röntgendiagnostikgerät zur Herstellung von Transversalschichtbildern
USRE34160E (en) * 1977-06-29 1993-01-12 Emi Limited Medical radiographic apparatus
JPS54108590A (en) * 1978-02-14 1979-08-25 Hitachi Medical Corp Scanner for computer tomograph
US4227088A (en) * 1978-10-10 1980-10-07 Bell Telephone Laboratories, Incorporated High speed computer assisted tomography
US4246484A (en) * 1979-01-08 1981-01-20 Emi Limited Medical radiographic apparatus
US4644573A (en) * 1979-09-17 1987-02-17 Picker Corporation Computed tomography method and apparatus
US4250387A (en) * 1979-10-12 1981-02-10 Emi Limited Medical radiographic apparatus and method
US4316091A (en) * 1979-11-15 1982-02-16 Emi Limited CT Scanner
JPS5975139A (ja) * 1982-10-22 1984-04-27 Konishiroku Photo Ind Co Ltd Ｘ線断層像作成方法及び装置
DE3325385A1 (de) * 1983-07-14 1985-01-31 Kleinewefers Gmbh, 4150 Krefeld Druckbehandlungswalze
JPS60174138A (ja) * 1984-02-20 1985-09-07 株式会社日立メデイコ Ｘ線ｃｔ装置におけるスキヤナ回転盤の角度検出装置
US4669103A (en) * 1984-05-29 1987-05-26 Elscint Ltd. CT scanner with rotatable fan beam and non-rotatable detector ring
US4610021A (en) * 1984-06-13 1986-09-02 Imatron, Inc. X-ray transmission scanning system having variable fan beam geometry
DE10211016A1 (de) * 2002-03-13 2003-09-25 Philips Intellectual Property Röntgengerät mit lageveränderlichem Röntgendetektor
US7142629B2 (en) * 2004-03-31 2006-11-28 General Electric Company Stationary computed tomography system and method
US8472583B2 (en) 2010-09-29 2013-06-25 Varian Medical Systems, Inc. Radiation scanning of objects for contraband
CN103720485A (zh) * 2012-10-10 2014-04-16 苏州生物医学工程技术研究所 移动式ct机
US9724057B2 (en) 2015-06-30 2017-08-08 Toshiba Medical Systems Corporation Magnetic field actuation of detectors in a computed tomography scanner

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2291679A1 (fr) * 1974-11-13 1976-06-11 Emi Ltd Perfectionnements concernant la radiographie
FR2368930A1 (fr) * 1976-11-02 1978-05-26 Siemens Ag Appareil de radiodiagnostic pour la realisation de tomographies transversales
FR2385374A1 (fr) * 1977-04-01 1978-10-27 Siemens Ag Appareil de radiodiagnostic pour la realisation de tomographies transversales
FR2391697A1 (fr) * 1977-05-24 1978-12-22 Siemens Ag Appareil de radiodiagnostic pour realiser des tomographies transversales

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1283915A (en) * 1968-08-23 1972-08-02 Emi Ltd A method of and apparatus for examination of a body by radiation such as x or gamma radiation
US4005311A (en) * 1974-02-15 1977-01-25 Georgetown University Diagnostic X-ray systems
US4031395A (en) * 1975-02-21 1977-06-21 Emi Limited Radiography
US4045672A (en) * 1975-09-11 1977-08-30 Nihon Denshi Kabushiki Kaisha Apparatus for tomography comprising a pin hole for forming a microbeam of x-rays

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2291679A1 (fr) * 1974-11-13 1976-06-11 Emi Ltd Perfectionnements concernant la radiographie
FR2368930A1 (fr) * 1976-11-02 1978-05-26 Siemens Ag Appareil de radiodiagnostic pour la realisation de tomographies transversales
FR2385374A1 (fr) * 1977-04-01 1978-10-27 Siemens Ag Appareil de radiodiagnostic pour la realisation de tomographies transversales
FR2391697A1 (fr) * 1977-05-24 1978-12-22 Siemens Ag Appareil de radiodiagnostic pour realiser des tomographies transversales

Also Published As

Publication number Publication date
NL7807010A (nl) 1979-01-03
DE2828963C2 (de) 1984-10-18
NL187959B (nl) 1991-10-01
AU514836B2 (en) 1981-02-26
HK42882A (en) 1982-10-08
MY8300173A (en) 1983-12-31
US4137455A (en) 1979-01-30
FR2396488B1 (fr) 1983-11-18
AU3704378A (en) 1979-12-20
JPS5412585A (en) 1979-01-30
NL187959C (nl) 1992-03-02
SE7807313L (sv) 1978-12-30
SE427154B (sv) 1983-03-14
DE2828963A1 (de) 1979-01-04
CA1075379A (fr) 1980-04-08
JPS5953055B2 (ja) 1984-12-22
GB2000656B (en) 1982-01-06
GB2000656A (en) 1979-01-10
NZ187705A (en) 1981-07-13
BE868477A (fr) 1978-10-16

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Legal Events

Date Code Title Description
TP Transmission of property
ST Notification of lapse
ST Notification of lapse