GB1523764A - Method and device for tomosynthesis - Google Patents

Method and device for tomosynthesis

Info

Publication number
GB1523764A
GB1523764A GB32057/75A GB3205775A GB1523764A GB 1523764 A GB1523764 A GB 1523764A GB 32057/75 A GB32057/75 A GB 32057/75A GB 3205775 A GB3205775 A GB 3205775A GB 1523764 A GB1523764 A GB 1523764A
Authority
GB
United Kingdom
Prior art keywords
circuit
image intensifier
image
storage tube
intensifier
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
GB32057/75A
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.)
Philips Electronics UK Ltd
Original Assignee
Philips Electronic and Associated Industries 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 Philips Electronic and Associated Industries Ltd filed Critical Philips Electronic and Associated Industries Ltd
Publication of GB1523764A publication Critical patent/GB1523764A/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
    • A61B6/42—Arrangements for detecting radiation specially adapted for radiation diagnosis
    • A61B6/4208—Arrangements for detecting radiation specially adapted for radiation diagnosis characterised by using a particular type of detector
    • A61B6/4225—Arrangements for detecting radiation specially adapted for radiation diagnosis characterised by using a particular type of detector using image intensifiers
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N23/00—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00
    • G01N23/02—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by transmitting the radiation through the material
    • G01N23/04—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by transmitting the radiation through the material and forming images of the material
    • G01N23/044—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by transmitting the radiation through the material and forming images of the material using laminography or tomosynthesis
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2223/00—Investigating materials by wave or particle radiation
    • G01N2223/40—Imaging
    • G01N2223/419—Imaging computed tomograph

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Pathology (AREA)
  • Physics & Mathematics (AREA)
  • Medical Informatics (AREA)
  • Engineering & Computer Science (AREA)
  • General Health & Medical Sciences (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Heart & Thoracic Surgery (AREA)
  • General Physics & Mathematics (AREA)
  • Biochemistry (AREA)
  • Biophysics (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Analytical Chemistry (AREA)
  • Chemical & Material Sciences (AREA)
  • Optics & Photonics (AREA)
  • Radiology & Medical Imaging (AREA)
  • Biomedical Technology (AREA)
  • Immunology (AREA)
  • Molecular Biology (AREA)
  • Surgery (AREA)
  • Animal Behavior & Ethology (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Apparatus For Radiation Diagnosis (AREA)
  • Analysing Materials By The Use Of Radiation (AREA)
  • X-Ray Techniques (AREA)
  • Transforming Light Signals Into Electric Signals (AREA)
  • Image Analysis (AREA)
  • Image Processing (AREA)

Abstract

1523764 Radiography; correcting raster distortion in cathode-ray tubes PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 31 July 1975 [3 Aug 1974] 32057/75 Headings H4F and H4T A sectional plane of a body O is imaged by rotating an X-ray source around a circle F 1 to F N while an electronic image intensifier 1 is correspondingly rotated about a circle M, to M N so that the central radiation beam always passes through a point Q in the plane of interest, the images viewed at each position of the source and intensifier being superimposed in a storage tube 5 whose scanning is synchronized with that of a camera tube 2 viewing the output of the image intensifier 1 by means of a common deflection circuit 6, but the scanning voltages of the storage tube have correction voltages #U x and #U y added thereto in amplifiers 6<SP>1</SP>, 6<SP>11</SP> so as to compensate for the fact that the input screen of the image intensifier 1 is curved, e.g. spherical, rather than flat. The correction voltages are generated in a circuit 7 under the control of a computer 8 and are typically a quadratic function of the cartesian coordinates of each image point. The specification describes a circuit for generating such a quadratic function using conventional analogue techniques and also a circuit using resolvers for coordinate rotation to eliminate the effect of the rotation of the image intensifier to give a stationary superimposed image on the storage tube target.
GB32057/75A 1974-08-03 1975-07-31 Method and device for tomosynthesis Expired GB1523764A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2437529A DE2437529A1 (en) 1974-08-03 1974-08-03 METHOD AND ARRANGEMENT FOR DISTORTION-FREE TOMOSYNTHESIS

Publications (1)

Publication Number Publication Date
GB1523764A true GB1523764A (en) 1978-09-06

Family

ID=5922399

Family Applications (1)

Application Number Title Priority Date Filing Date
GB32057/75A Expired GB1523764A (en) 1974-08-03 1975-07-31 Method and device for tomosynthesis

Country Status (4)

Country Link
JP (1) JPS5138892A (en)
DE (1) DE2437529A1 (en)
FR (1) FR2280919A1 (en)
GB (1) GB1523764A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4598369A (en) * 1983-05-02 1986-07-01 Picker International, Inc. Tomography apparatus and method

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL7609885A (en) * 1976-09-06 1978-03-08 Optische Ind De Oude Delft Nv SYSTEM FOR ELEMENTBY RECONSTRUCTION OF A TOMOGRAM OF A CROSS-SECTION OF AN OBJECT.
DE2658331C2 (en) * 1976-12-23 1982-06-09 Philips Patentverwaltung Gmbh, 2000 Hamburg X-ray slice recording device with an image recording device containing an image intensifier and a television camera
DE2718943A1 (en) * 1977-04-28 1978-11-02 Philips Patentverwaltung ARRANGEMENT FOR THE PRODUCTION OF X-RAY FILM PHOTOS

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4598369A (en) * 1983-05-02 1986-07-01 Picker International, Inc. Tomography apparatus and method

Also Published As

Publication number Publication date
FR2280919A1 (en) 1976-02-27
DE2437529B2 (en) 1978-10-26
JPS5426477B2 (en) 1979-09-04
DE2437529A1 (en) 1976-02-12
FR2280919B1 (en) 1979-06-15
DE2437529C3 (en) 1979-06-28
JPS5138892A (en) 1976-03-31

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee