FR2260144B2 - - Google Patents

Info

Publication number
FR2260144B2
FR2260144B2 FR7502915A FR7502915A FR2260144B2 FR 2260144 B2 FR2260144 B2 FR 2260144B2 FR 7502915 A FR7502915 A FR 7502915A FR 7502915 A FR7502915 A FR 7502915A FR 2260144 B2 FR2260144 B2 FR 2260144B2
Authority
FR
France
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
FR7502915A
Other languages
French (fr)
Other versions
FR2260144A2 (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
Publication of FR2260144A2 publication Critical patent/FR2260144A2/fr
Application granted granted Critical
Publication of FR2260144B2 publication Critical patent/FR2260144B2/fr
Granted legal-status Critical Current

Links

Classifications

    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B6/00Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment
    • A61B6/40Arrangements for generating radiation specially adapted for radiation diagnosis
    • A61B6/4064Arrangements for generating radiation specially adapted for radiation diagnosis specially adapted for producing a particular type of beam
    • A61B6/4071Pencil beams
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B6/00Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment
    • A61B6/02Arrangements for diagnosis sequentially in different planes; Stereoscopic radiation diagnosis
    • A61B6/03Computed tomography [CT]
    • A61B6/032Transmission computed tomography [CT]
    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06TIMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T11/002D [Two Dimensional] image generation
    • G06T11/003Reconstruction from projections, e.g. tomography
    • G06T11/006Inverse problem, transformation from projection-space into object-space, e.g. transform methods, back-projection, algebraic methods
    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06TIMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T2211/00Image generation
    • G06T2211/40Computed tomography
    • G06T2211/421Filtered back projection [FBP]

Landscapes

  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Medical Informatics (AREA)
  • Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Surgery (AREA)
  • Public Health (AREA)
  • Optics & Photonics (AREA)
  • Pathology (AREA)
  • Radiology & Medical Imaging (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Molecular Biology (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Veterinary Medicine (AREA)
  • General Physics & Mathematics (AREA)
  • Biophysics (AREA)
  • Algebra (AREA)
  • Pulmonology (AREA)
  • Mathematical Analysis (AREA)
  • Mathematical Optimization (AREA)
  • Mathematical Physics (AREA)
  • Pure & Applied Mathematics (AREA)
  • Apparatus For Radiation Diagnosis (AREA)
  • Analysing Materials By The Use Of Radiation (AREA)
FR7502915A 1974-01-31 1975-01-30 Short-wave radiation absorption measuring equipment - processes data to obtain set of convoluted terms Granted FR2260144A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB456474 1974-01-31
GB1994074 1974-05-07

Publications (2)

Publication Number Publication Date
FR2260144A2 FR2260144A2 (en) 1975-08-29
FR2260144B2 true FR2260144B2 (ru) 1979-05-18

Family

ID=26239229

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7502915A Granted FR2260144A2 (en) 1974-01-31 1975-01-30 Short-wave radiation absorption measuring equipment - processes data to obtain set of convoluted terms

Country Status (3)

Country Link
JP (1) JPS50109783A (ru)
FR (1) FR2260144A2 (ru)
NL (1) NL7501206A (ru)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1069995B (it) * 1975-11-25 1985-03-25 Philips Med Syst Inc Procedimento ed apparecchio di tomografia computerizzata
JPH0119932Y2 (ru) * 1978-01-19 1989-06-09

Also Published As

Publication number Publication date
FR2260144A2 (en) 1975-08-29
JPS50109783A (ru) 1975-08-29
NL7501206A (nl) 1975-08-04

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