GB1577615A - Radiography - Google Patents

Radiography Download PDF

Info

Publication number
GB1577615A
GB1577615A GB19681/76A GB1968176A GB1577615A GB 1577615 A GB1577615 A GB 1577615A GB 19681/76 A GB19681/76 A GB 19681/76A GB 1968176 A GB1968176 A GB 1968176A GB 1577615 A GB1577615 A GB 1577615A
Authority
GB
United Kingdom
Prior art keywords
paths
slice
radiation
coefficients
output signals
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
GB19681/76A
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 GB19681/76A priority Critical patent/GB1577615A/en
Priority to US05/793,390 priority patent/US4138611A/en
Priority to FR7714371A priority patent/FR2350820A1/fr
Priority to DE2721712A priority patent/DE2721712C2/de
Priority to NLAANVRAGE7705358,A priority patent/NL183629C/xx
Priority to JP5590977A priority patent/JPS52144995A/ja
Publication of GB1577615A publication Critical patent/GB1577615A/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
    • 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)
GB19681/76A 1976-05-13 1976-05-13 Radiography Expired GB1577615A (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
GB19681/76A GB1577615A (en) 1976-05-13 1976-05-13 Radiography
US05/793,390 US4138611A (en) 1976-05-13 1977-05-03 Fan beam CT apparatus with post-processing weighting of picture element signals
FR7714371A FR2350820A1 (fr) 1976-05-13 1977-05-11 Perfectionnements apportes aux appareils de tomographie axiale
DE2721712A DE2721712C2 (de) 1976-05-13 1977-05-12 Computer-Tomograph
NLAANVRAGE7705358,A NL183629C (nl) 1976-05-13 1977-05-13 Radiografische werkwijze.
JP5590977A JPS52144995A (en) 1976-05-13 1977-05-13 Radiation photograph camera

Applications Claiming Priority (1)

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

Publications (1)

Publication Number Publication Date
GB1577615A true GB1577615A (en) 1980-10-29

Family

ID=10133417

Family Applications (1)

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

Country Status (6)

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

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
JP5635732B2 (ja) * 2005-12-15 2014-12-03 コーニンクレッカ フィリップス エヌ ヴェ 複数繰り返しアルゴリズムの進行的な収束

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 (https=) * 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
NL183629C (nl) 1988-12-16
DE2721712A1 (de) 1977-11-17
JPS558168B2 (https=) 1980-03-03
JPS52144995A (en) 1977-12-02
FR2350820A1 (fr) 1977-12-09
NL7705358A (nl) 1977-11-15
DE2721712C2 (de) 1984-12-13
US4138611A (en) 1979-02-06
FR2350820B1 (https=) 1981-12-04

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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)
PE20 Patent expired after termination of 20 years

Effective date: 19970426