FR2387633A1 - Appareil d'examen du corps humain par couches successives - Google Patents

Appareil d'examen du corps humain par couches successives

Info

Publication number
FR2387633A1
FR2387633A1 FR7811197A FR7811197A FR2387633A1 FR 2387633 A1 FR2387633 A1 FR 2387633A1 FR 7811197 A FR7811197 A FR 7811197A FR 7811197 A FR7811197 A FR 7811197A FR 2387633 A1 FR2387633 A1 FR 2387633A1
Authority
FR
France
Prior art keywords
layer
detection means
source
boundary
plane
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.)
Withdrawn
Application number
FR7811197A
Other languages
English (en)
Inventor
John Compton Truscott
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.)
General Electric Co
Original Assignee
General Electric Co
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 General Electric Co filed Critical General Electric Co
Publication of FR2387633A1 publication Critical patent/FR2387633A1/fr
Withdrawn legal-status Critical Current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
    • A61B6/44—Constructional features of apparatus for radiation diagnosis
    • A61B6/4476—Constructional features of apparatus for radiation diagnosis related to motor-assisted motion of the source unit
    • 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]

Landscapes

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

Abstract

Appareil permettant de visualiser, sur toute la surface de l'écran du moniteur, l'image de la couche explorée. Il comprend des moyens 45, 51, tournant autour d'un axe le long duquel est disposé le corps sous examen, une source 10 projetant un faisceau de radiations en forme d'éventail, le faisceau qui intercepte couche par couche le corps examiné étant limité par des rayons limites qui divergent dans le plan d'une couche considérée en faisant un angle de divergence fixe, des moyens de détection des radiations incurvés diamétralement opposés à la source recevant les radiations émises entre les rayons limites après leur passage dans la couche considérée, et des moyens 56, 57, 58, 58' pour monter la source et les moyens de détection de manière à les entraîner conjointement en orbite et les déplacer conjointement dans le plan de la couche de telle sorte que, quelles que soient les dimensions de cette couche, ses bords sont toujours tangents aux rayons limites du faisceau divergent et que la projection de cette couche couvre pratiquement la totalité de la longueur des moyens de détection. Application à la tomographie calculée.
FR7811197A 1977-04-18 1978-04-17 Appareil d'examen du corps humain par couches successives Withdrawn FR2387633A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/788,387 US4115696A (en) 1977-04-18 1977-04-18 Computed tomography scanner

Publications (1)

Publication Number Publication Date
FR2387633A1 true FR2387633A1 (fr) 1978-11-17

Family

ID=25144335

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7811197A Withdrawn FR2387633A1 (fr) 1977-04-18 1978-04-17 Appareil d'examen du corps humain par couches successives

Country Status (6)

Country Link
US (1) US4115696A (fr)
JP (1) JPS53144291A (fr)
DE (1) DE2816218A1 (fr)
ES (1) ES468607A1 (fr)
FR (1) FR2387633A1 (fr)
SE (1) SE7804334L (fr)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4200799A (en) * 1976-07-15 1980-04-29 Tokyo Shibaura Electric Co., Ltd. Tomographing device
NL7707541A (nl) * 1977-07-07 1979-01-09 Philips Nv Kabelgeleiding, alsmede medische inrichting voorzien van een dergelijke kabelgeleiding.
US4262204A (en) * 1979-09-24 1981-04-14 General Electric Company Patient cradle for computerized tomography apparatus
DE3112891A1 (de) * 1980-04-02 1982-01-28 General Electric Co., New York, N.Y. "rechnergesteuertes tomographiegeraet und -verfahren"
CA1196691A (fr) * 1982-01-12 1985-11-12 Bradley Fry Systeme et methodes de reconstruction pour imagerie a impedance
US4580219A (en) * 1983-05-02 1986-04-01 General Electric Company Method for reducing image artifacts due to projection measurement inconsistencies
JPS60109200A (ja) * 1983-11-18 1985-06-14 Toshiba Corp Ｘ線ｃｔ装置
SE469651B (sv) * 1988-07-13 1993-08-16 Bernt Nymark Biopsibaage
US7453987B1 (en) * 2004-03-04 2008-11-18 Science Applications International Corporation Method and system for high energy, low radiation power X-ray imaging of the contents of a target
US20050254626A1 (en) * 2004-05-12 2005-11-17 Weems Hollowell Portable holder for X-ray cassettes
CN2796650Y (zh) * 2005-03-31 2006-07-19 西门子（中国）有限公司 焦点至探测器距离可调的计算机断层摄影系统
WO2006111202A1 (fr) * 2005-04-19 2006-10-26 Swissray International Inc. Appareil de radiographie dote d'un pied et d'un bras radial reglable en hauteur sur le pied
US20090141853A1 (en) * 2007-11-30 2009-06-04 Veronica Crews Protective shield for ct scanning machine
US8314394B1 (en) 2009-11-04 2012-11-20 Science Applications International Corporation System and method for three-dimensional imaging using scattering from annihilation coincidence photons
CN103674979B (zh) 2012-09-19 2016-12-21 同方威视技术股份有限公司 一种行李物品ct安检系统及其探测器装置
US9808211B2 (en) * 2013-11-12 2017-11-07 Carestream Health, Inc. Head and neck imager

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2732073A1 (de) * 1976-07-15 1978-01-19 Tokyo Shibaura Electric Co Tomographievorrichtung
NL7610858A (nl) * 1976-10-01 1978-04-04 Philips Nv Apparaat voor het meten van lokale absorptie- verschillen.

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1529799A (en) * 1974-11-13 1978-10-25 Emi Ltd Radiography
JPS539494A (en) * 1976-07-15 1978-01-27 Toshiba Corp Tomographic apparatus

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2732073A1 (de) * 1976-07-15 1978-01-19 Tokyo Shibaura Electric Co Tomographievorrichtung
NL7610858A (nl) * 1976-10-01 1978-04-04 Philips Nv Apparaat voor het meten van lokale absorptie- verschillen.
FR2366561A1 (fr) * 1976-10-01 1978-04-28 Philips Nv Appareil pour mesurer des differences d'absorption locale a l'aide d'un faisceau de rayons x en forme d'eventail

Also Published As

Publication number Publication date
JPS53144291A (en) 1978-12-15
ES468607A1 (es) 1978-11-16
SE7804334L (sv) 1978-10-19
US4115696A (en) 1978-09-19
DE2816218A1 (de) 1978-10-26

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Legal Events

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