DE2721712C2 - Computer-Tomograph - Google Patents

Computer-Tomograph

Info

Publication number
DE2721712C2
DE2721712C2 DE2721712A DE2721712A DE2721712C2 DE 2721712 C2 DE2721712 C2 DE 2721712C2 DE 2721712 A DE2721712 A DE 2721712A DE 2721712 A DE2721712 A DE 2721712A DE 2721712 C2 DE2721712 C2 DE 2721712C2
Authority
DE
Germany
Prior art keywords
paths
output signals
radiation
ray source
detector
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
DE2721712A
Other languages
German (de)
English (en)
Other versions
DE2721712A1 (de
Inventor
Godfrey Newbold Newark Nottinghamshire Hounsfield
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 DE2721712A1 publication Critical patent/DE2721712A1/de
Application granted granted Critical
Publication of DE2721712C2 publication Critical patent/DE2721712C2/de
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
    • 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
    • A61B6/58—Testing, adjusting or calibrating thereof
    • A61B6/582—Calibration
    • A61B6/585—Calibration of detector units
    • 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
    • A61B6/4021—Arrangements for generating radiation specially adapted for radiation diagnosis involving movement of the focal spot
    • A61B6/4028—Arrangements for generating radiation specially adapted for radiation diagnosis involving movement of the focal spot resulting in acquisition of views from substantially different positions, e.g. EBCT
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A90/00—Technologies having an indirect contribution to adaptation to climate change
    • Y02A90/10—Information and communication technologies [ICT] supporting adaptation to climate change, e.g. for weather forecasting or climate simulation

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Medical Informatics (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Animal Behavior & Ethology (AREA)
  • Biophysics (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Optics & Photonics (AREA)
  • Pathology (AREA)
  • Radiology & Medical Imaging (AREA)
  • Biomedical Technology (AREA)
  • Physics & Mathematics (AREA)
  • Molecular Biology (AREA)
  • Surgery (AREA)
  • High Energy & Nuclear Physics (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Pulmonology (AREA)
  • Theoretical Computer Science (AREA)
  • Apparatus For Radiation Diagnosis (AREA)
  • Analysing Materials By The Use Of Radiation (AREA)
  • Medical Treatment And Welfare Office Work (AREA)
  • Measurement Of Radiation (AREA)
DE2721712A 1976-05-13 1977-05-12 Computer-Tomograph Expired DE2721712C2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB19681/76A GB1577615A (en) 1976-05-13 1976-05-13 Radiography

Publications (2)

Publication Number Publication Date
DE2721712A1 DE2721712A1 (de) 1977-11-17
DE2721712C2 true DE2721712C2 (de) 1984-12-13

Family

ID=10133417

Family Applications (1)

Application Number Title Priority Date Filing Date
DE2721712A Expired DE2721712C2 (de) 1976-05-13 1977-05-12 Computer-Tomograph

Country Status (6)

Country Link
US (1) US4138611A (enExample)
JP (1) JPS52144995A (enExample)
DE (1) DE2721712C2 (enExample)
FR (1) FR2350820A1 (enExample)
GB (1) GB1577615A (enExample)
NL (1) NL183629C (enExample)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1576286A (en) * 1977-07-12 1980-10-08 Emi Ltd Radiograhy
GB1602071A (en) * 1978-05-12 1981-11-04 Emi Ltd Processing arrangements for medical examination
GB1602072A (en) * 1978-05-12 1981-11-04 Emi Ltd Processing arrangements for constructing representations of parts of bodies
US4253027A (en) * 1978-06-14 1981-02-24 Ohio-Nuclear, Inc. Tomographic scanner
NL7902015A (nl) * 1979-03-14 1980-09-16 Philips Nv Werkwijze en inrichting voor het bepalen van een stralingsabsorptieverdeling in een deel van een lichaam.
US4250387A (en) * 1979-10-12 1981-02-10 Emi Limited Medical radiographic apparatus and method
NL8204086A (nl) * 1982-10-22 1984-05-16 Philips Nv Werkwijze en inrichting voor het bepalen van een stralingsverzwakkingsverdeling in een vlak van een lichaam.
JPS6096231A (ja) * 1983-10-31 1985-05-29 株式会社東芝 Ｘ線ｃｔ装置
JPH01119233A (ja) * 1987-10-30 1989-05-11 Yokogawa Medical Syst Ltd Ｘ線断層撮影装置
NL8802184A (nl) * 1988-09-05 1990-04-02 Philips Nv Werkwijze en inrichting voor correctie van strooistralingseffecten in roentgenbeelden.
US5457321A (en) * 1990-02-20 1995-10-10 Kabushiki Kaisha Toshiba Spect apparatus utilizing fan-parallel data conversion
US5142286A (en) * 1990-10-01 1992-08-25 General Electric Company Read-out photodiodes using sigma-delta oversampled analog-to-digital converters
US5335255A (en) * 1992-03-24 1994-08-02 Seppi Edward J X-ray scanner with a source emitting plurality of fan beams
US7961839B2 (en) * 2005-12-15 2011-06-14 Koninklijke Philips Electronics N.V. Advanced convergence for multiple iterative algorithm

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
GB1430088A (en) * 1972-05-17 1976-03-31 Emi Ltd Radiography
GB1471531A (en) * 1973-04-25 1977-04-27 Emi Ltd Radiography
GB1475492A (en) * 1973-06-01 1977-06-01 Emi Ltd Apparatus for examining objects by means of penetrating radiation
FR2232294B1 (enExample) * 1973-06-05 1978-01-13 Emi Ltd
GB1478124A (en) * 1973-08-31 1977-06-29 Emi Ltd Apparatus for examining bodies by means of penetrating radiation
GB1509528A (en) * 1974-06-07 1978-05-04 Emi Ltd Radiology
GB1529799A (en) 1974-11-13 1978-10-25 Emi Ltd Radiography
DE2609226A1 (de) * 1976-03-05 1977-09-08 Siemens Ag Anordnung zur untersuchung eines koerpers mit ionisierender strahlung

Also Published As

Publication number Publication date
NL7705358A (nl) 1977-11-15
NL183629C (nl) 1988-12-16
JPS52144995A (en) 1977-12-02
FR2350820B1 (enExample) 1981-12-04
US4138611A (en) 1979-02-06
DE2721712A1 (de) 1977-11-17
FR2350820A1 (fr) 1977-12-09
GB1577615A (en) 1980-10-29
JPS558168B2 (enExample) 1980-03-03

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Legal Events

Date Code Title Description
OD Request for examination
D2 Grant after examination
8364 No opposition during term of opposition