[go: up one dir, main page]
More Web Proxy on the site http://driver.im/

GB1528574A - Radiography - Google Patents

Radiography

Info

Publication number
GB1528574A
GB1528574A GB4670074A GB4670074A GB1528574A GB 1528574 A GB1528574 A GB 1528574A GB 4670074 A GB4670074 A GB 4670074A GB 4670074 A GB4670074 A GB 4670074A GB 1528574 A GB1528574 A GB 1528574A
Authority
GB
United Kingdom
Prior art keywords
collimator
slice
oct
passages
photomultipliers
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
GB4670074A
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 GB4670074A priority Critical patent/GB1528574A/en
Publication of GB1528574A publication Critical patent/GB1528574A/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
    • A61B6/02—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
    • A61B6/40—Arrangements for generating radiation specially adapted for radiation diagnosis
    • A61B6/4064—Arrangements for generating radiation specially adapted for radiation diagnosis specially adapted for producing a particular type of beam
    • A61B6/4085—Cone-beams
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01T—MEASUREMENT OF NUCLEAR OR X-RADIATION
    • G01T1/00—Measuring X-radiation, gamma radiation, corpuscular radiation, or cosmic radiation
    • G01T1/16—Measuring radiation intensity
    • G01T1/161—Applications in the field of nuclear medicine, e.g. in vivo counting
    • G01T1/164—Scintigraphy
    • G01T1/1641—Static instruments for imaging the distribution of radioactivity in one or two dimensions using one or several scintillating elements; Radio-isotope cameras
    • G01T1/1644—Static instruments for imaging the distribution of radioactivity in one or two dimensions using one or several scintillating elements; Radio-isotope cameras using an array of optically separate scintillation elements permitting direct location of scintillations

Landscapes

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

Abstract

1528574 Radiography EMI Ltd 27 Oct 1975 [29 Oct 1974] 46700/74 Heading H4F A radiological examination apparatus for examining a body 1 by causing a divergent or scanned beam of X-rays or gamma rays from a source 2 to traverse the body through a plurality of parallel planar slices, either simultaneously or in succession, is provided for each slice with a collimator 7 with an array of passages in the plane of the slice, each passage having a scintillator 4 and each group of scintillators having at least one channel photomultiplier 5 to derive electrical signals representing absorption of the radiation in passing through the slice, the whole apparatus being rotatable about an axis 6 perpendicular to the slices to permit irradiation from different source positions. Figs. 2a and 2b (neither shown) show a collimator with two associated photomultipliers the passages of half of the collimator being lengthened to provide space for both photomultipliers.
GB4670074A 1975-10-27 1975-10-27 Radiography Expired GB1528574A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB4670074A GB1528574A (en) 1975-10-27 1975-10-27 Radiography

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4670074A GB1528574A (en) 1975-10-27 1975-10-27 Radiography

Publications (1)

Publication Number Publication Date
GB1528574A true GB1528574A (en) 1978-10-11

Family

ID=10442258

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4670074A Expired GB1528574A (en) 1975-10-27 1975-10-27 Radiography

Country Status (1)

Country Link
GB (1) GB1528574A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0051350A2 (en) * 1980-10-31 1982-05-12 Technicare Corporation Shadowgraphic slit scanner
US4472822A (en) * 1980-05-19 1984-09-18 American Science And Engineering, Inc. X-Ray computed tomography using flying spot mechanical scanning mechanism
US4718076A (en) * 1983-04-22 1988-01-05 Kabushiki Kaisha Toshiba X-ray imaging apparatus
US5228069A (en) * 1989-06-04 1993-07-13 Elscint Ltd. Dual slice scanner
US5625661A (en) * 1994-04-30 1997-04-29 Shimadzu Corporation X-ray CT apparatus
US5712889A (en) * 1994-08-24 1998-01-27 Lanzara; Giovanni Scanned volume CT scanner
EP1005257A2 (en) * 1998-11-25 2000-05-31 Picker International, Inc. Computed tomography

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4472822A (en) * 1980-05-19 1984-09-18 American Science And Engineering, Inc. X-Ray computed tomography using flying spot mechanical scanning mechanism
EP0051350A2 (en) * 1980-10-31 1982-05-12 Technicare Corporation Shadowgraphic slit scanner
EP0051350A3 (en) * 1980-10-31 1982-07-21 Technicare Corporation Shadowgraphic slit scanner with video display
US4718076A (en) * 1983-04-22 1988-01-05 Kabushiki Kaisha Toshiba X-ray imaging apparatus
US5228069A (en) * 1989-06-04 1993-07-13 Elscint Ltd. Dual slice scanner
US5625661A (en) * 1994-04-30 1997-04-29 Shimadzu Corporation X-ray CT apparatus
US5712889A (en) * 1994-08-24 1998-01-27 Lanzara; Giovanni Scanned volume CT scanner
EP1005257A2 (en) * 1998-11-25 2000-05-31 Picker International, Inc. Computed tomography
EP1005257A3 (en) * 1998-11-25 2003-06-11 Marconi Medical Systems, Inc. Computed tomography

Similar Documents

Publication Publication Date Title
US4101768A (en) Apparatus for computerized tomography having improved anti-scatter collimators
Derenzo Precision measurement of annihilation point spread distributions for medically important positron emitters
GB1478123A (en) Tomography
US5638817A (en) Gamma camera split collimator collimation method and apparatus
DE2233345C2 (en) Device for imaging an object by radiating it with X-rays
GB1283915A (en) A method of and apparatus for examination of a body by radiation such as x or gamma radiation
DE2426343C2 (en) Device for examining an object using X-rays
CA1051128A (en) POSITION SENSITIVE X-RAY OR .gamma.-RAY DETECTOR AND 3-D TOMOGRAPHY USING SAME
US6211523B1 (en) Autocontouring device for gamma camera using radioactive source and transverse motion
Brooks et al. Design considerations for positron emission tomography
GB2130835A (en) Apparatus for the diagnosis of body structures into which a gamma-emitting radioactive isotape has been introduced
GB2030422A (en) Apparatus for use in tomography
US4239972A (en) Device for computed tomography
US3808440A (en) Method and apparatus for measuring radioisotope distribution
GB1528574A (en) Radiography
US6642523B1 (en) PET and SPECT systems with attenuation correction
GB1577615A (en) Radiography
JPS5599087A (en) Emission type tomography
GB2007457A (en) Tomography apparatus using Bismuth germanate scintillators
GB1598685A (en) Radiography
GB1571510A (en) Radiography
US4843618A (en) Radiography
US4160911A (en) Fan beam CT apparatus the interbeam angle of which varies with position across the fan
Patton et al. Simultaneous emission and fluorescent scanning of the thyroid
FR2405696A1 (en) TRANSVERSE AXIAL TOMOGRAPHY METHOD AND APPARATUS

Legal Events

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