GB1576286A - Radiograhy - Google Patents

Radiograhy Download PDF

Info

Publication number
GB1576286A
GB1576286A GB29256/77A GB2925677A GB1576286A GB 1576286 A GB1576286 A GB 1576286A GB 29256/77 A GB29256/77 A GB 29256/77A GB 2925677 A GB2925677 A GB 2925677A GB 1576286 A GB1576286 A GB 1576286A
Authority
GB
United Kingdom
Prior art keywords
radiation
source
absorption
paths
pixel
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.)
Expired
Application number
GB29256/77A
Other languages
English (en)
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
Priority to GB29256/77A priority Critical patent/GB1576286A/en
Priority to JP7920078A priority patent/JPS5419693A/ja
Priority to FR7820314A priority patent/FR2397179A1/fr
Priority to DE2830832A priority patent/DE2830832C2/de
Publication of GB1576286A publication Critical patent/GB1576286A/en
Expired 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
    • A61B6/58—Testing, adjusting or calibrating thereof
    • A61B6/582—Calibration
    • A61B6/583—Calibration using calibration phantoms
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T11/00—2D [Two Dimensional] image generation
    • G06T11/003—Reconstruction from projections, e.g. tomography
    • G06T11/005—Specific pre-processing for tomographic reconstruction, e.g. calibration, source positioning, rebinning, scatter correction, retrospective gating

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Medical Informatics (AREA)
  • Physics & Mathematics (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Surgery (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Optics & Photonics (AREA)
  • Pathology (AREA)
  • Radiology & Medical Imaging (AREA)
  • Biomedical Technology (AREA)
  • Biophysics (AREA)
  • Molecular Biology (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Apparatus For Radiation Diagnosis (AREA)
  • Medical Treatment And Welfare Office Work (AREA)
  • Analysing Materials By The Use Of Radiation (AREA)
GB29256/77A 1977-07-12 1977-07-12 Radiograhy Expired GB1576286A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
GB29256/77A GB1576286A (en) 1977-07-12 1977-07-12 Radiograhy
JP7920078A JPS5419693A (en) 1977-07-12 1978-06-29 Radiant ray camera
FR7820314A FR2397179A1 (fr) 1977-07-12 1978-07-07 Appareil de tomographie a traitement ameliore
DE2830832A DE2830832C2 (de) 1977-07-12 1978-07-11 Computer-Tomograph

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB29256/77A GB1576286A (en) 1977-07-12 1977-07-12 Radiograhy

Publications (1)

Publication Number Publication Date
GB1576286A true GB1576286A (en) 1980-10-08

Family

ID=10288627

Family Applications (1)

Application Number Title Priority Date Filing Date
GB29256/77A Expired GB1576286A (en) 1977-07-12 1977-07-12 Radiograhy

Country Status (4)

Country Link
JP (1) JPS5419693A (fr)
DE (1) DE2830832C2 (fr)
FR (1) FR2397179A1 (fr)
GB (1) GB1576286A (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4739481A (en) * 1984-03-15 1988-04-19 Yokogawa Medical Systems, Limited X-ray CT image processing apparatus

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA1104727A (fr) * 1977-08-18 1981-07-07 Godfrey N. Hounsfield Explorateur ct a rotation uniquement avec deviation du faisceau
US4278889A (en) * 1979-10-15 1981-07-14 Ohio Nuclear, Inc. Current amplifier with automatic drift correction for tomographic scanners
JPS59158800A (ja) * 1983-02-25 1984-09-08 新明和工業株式会社 高所作業車の安全装置
FR2636752B1 (fr) * 1988-09-16 1990-10-26 Gen Electric Cgr Procede et systeme de correction des defauts d'images d'un scanner dus aux deplacements de ce dernier

Family Cites Families (9)

* 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
GB1430989A (en) * 1971-06-30 1976-04-07 Clarke Gravely Corp Floor or carpet cleaning apparatus
GB1471531A (en) * 1973-04-25 1977-04-27 Emi Ltd Radiography
GB1493594A (en) * 1974-01-31 1977-11-30 Emi Ltd Radiography
JPS522186A (en) * 1974-11-29 1977-01-08 Univ Leland Stanford Junior Device for detecting and stopping divergent transmissive radiation and threeedimensional sectional camera device
GB1537487A (en) * 1975-03-18 1978-12-29 Emi Ltd Radiography
GB1571509A (en) * 1976-03-03 1980-07-16 Emi Ltd Radiography
GB1577615A (en) * 1976-05-13 1980-10-29 Emi Ltd Radiography
BE850233A (fr) * 1977-01-10 1977-05-02 Emi Ltd Appareil de tomographie a compensation de sensibilite des detecteurs

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4739481A (en) * 1984-03-15 1988-04-19 Yokogawa Medical Systems, Limited X-ray CT image processing apparatus

Also Published As

Publication number Publication date
JPS5543770B2 (fr) 1980-11-08
DE2830832C2 (de) 1985-07-04
FR2397179B1 (fr) 1983-03-04
JPS5419693A (en) 1979-02-14
FR2397179A1 (fr) 1979-02-09
DE2830832A1 (de) 1979-01-25

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
732 Registration of transactions, instruments or events in the register (sect. 32/1977)
PCNP Patent ceased through non-payment of renewal fee

Effective date: 19970525