FR2451148A1 - Appareil de tomographie pourvu de moyens de calibrage initial - Google Patents

Appareil de tomographie pourvu de moyens de calibrage initial

Info

Publication number
FR2451148A1
FR2451148A1 FR8011107A FR8011107A FR2451148A1 FR 2451148 A1 FR2451148 A1 FR 2451148A1 FR 8011107 A FR8011107 A FR 8011107A FR 8011107 A FR8011107 A FR 8011107A FR 2451148 A1 FR2451148 A1 FR 2451148A1
Authority
FR
France
Prior art keywords
photomultipliers
signal amplitudes
processor
utilises
initial calibration
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.)
Granted
Application number
FR8011107A
Other languages
English (en)
French (fr)
Other versions
FR2451148B1 (nl
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
Priority claimed from GB20259/74A external-priority patent/GB1508300A/en
Application filed by EMI Ltd filed Critical EMI Ltd
Publication of FR2451148A1 publication Critical patent/FR2451148A1/fr
Application granted granted Critical
Publication of FR2451148B1 publication Critical patent/FR2451148B1/fr
Granted 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
    • A61B6/585—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
    • A61B6/02—Arrangements for diagnosis sequentially in different planes; Stereoscopic radiation diagnosis
    • A61B6/03—Computed tomography [CT]
    • A61B6/032—Transmission computed tomography [CT]
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T11/00—2D [Two Dimensional] image generation
    • G06T11/003—Reconstruction from projections, e.g. tomography
    • G06T11/005—Specific pre-processing for tomographic reconstruction, e.g. calibration, source positioning, rebinning, scatter correction, retrospective gating

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Medical Informatics (AREA)
  • Physics & Mathematics (AREA)
  • Radiology & Medical Imaging (AREA)
  • Surgery (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Optics & Photonics (AREA)
  • Pathology (AREA)
  • Biophysics (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)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Theoretical Computer Science (AREA)
  • Pulmonology (AREA)
  • General Physics & Mathematics (AREA)
  • Measurement Of Radiation (AREA)
FR8011107A 1974-05-08 1980-05-19 Appareil de tomographie pourvu de moyens de calibrage initial Granted FR2451148A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB20259/74A GB1508300A (en) 1974-05-08 1974-05-08 Radiology
GB2025975 1975-04-24

Publications (2)

Publication Number Publication Date
FR2451148A1 true FR2451148A1 (fr) 1980-10-03
FR2451148B1 FR2451148B1 (nl) 1983-12-30

Family

ID=26254565

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8011107A Granted FR2451148A1 (fr) 1974-05-08 1980-05-19 Appareil de tomographie pourvu de moyens de calibrage initial

Country Status (1)

Country Link
FR (1) FR2451148A1 (nl)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0030143A2 (en) * 1979-11-29 1981-06-10 Technicare Corporation Apparatus for preprocessing truncated intensity projection values in computed tomography

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0030143A2 (en) * 1979-11-29 1981-06-10 Technicare Corporation Apparatus for preprocessing truncated intensity projection values in computed tomography
EP0030143A3 (en) * 1979-11-29 1981-12-23 Technicare Corporation Method of preprocessing truncated intensity projection values in computed tomography

Also Published As

Publication number Publication date
FR2451148B1 (nl) 1983-12-30

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Legal Events

Date Code Title Description
TP Transmission of property