GB2340015B - Computed tomography scanner with reduced power x-ray source - Google Patents

Computed tomography scanner with reduced power x-ray source

Info

Publication number
GB2340015B
GB2340015B GB9924423A GB9924423A GB2340015B GB 2340015 B GB2340015 B GB 2340015B GB 9924423 A GB9924423 A GB 9924423A GB 9924423 A GB9924423 A GB 9924423A GB 2340015 B GB2340015 B GB 2340015B
Authority
GB
United Kingdom
Prior art keywords
ray source
computed tomography
reduced power
tomography scanner
scanner
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 - Fee Related
Application number
GB9924423A
Other versions
GB9924423D0 (en
GB2340015A (en
Inventor
Bernard M Gordon
John Dobbs
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.)
Analogic Corp
Original Assignee
Analogic Corp
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 US08/739,543 external-priority patent/US5867553A/en
Application filed by Analogic Corp filed Critical Analogic Corp
Publication of GB9924423D0 publication Critical patent/GB9924423D0/en
Publication of GB2340015A publication Critical patent/GB2340015A/en
Application granted granted Critical
Publication of GB2340015B publication Critical patent/GB2340015B/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • A61B6/40—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
    • A61B6/4071—Pencil beams
    • 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
    • A61B6/4021—Arrangements for generating radiation specially adapted for radiation diagnosis involving movement of the focal spot
    • 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
    • A61B6/4035—Arrangements for generating radiation specially adapted for radiation diagnosis the source being combined with a filter or grating
    • 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

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Medical Informatics (AREA)
  • Radiology & Medical Imaging (AREA)
  • Molecular Biology (AREA)
  • Biophysics (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Optics & Photonics (AREA)
  • Pathology (AREA)
  • Physics & Mathematics (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Surgery (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Pulmonology (AREA)
  • Theoretical Computer Science (AREA)
  • Apparatus For Radiation Diagnosis (AREA)
GB9924423A 1995-11-02 1996-11-01 Computed tomography scanner with reduced power x-ray source Expired - Fee Related GB2340015B (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US55206495A 1995-11-02 1995-11-02
US08/739,543 US5867553A (en) 1995-11-02 1996-10-30 Computed tomography scanner with reduced power x-ray source
GB9805862A GB2320878B (en) 1995-11-02 1996-11-01 Computed tomography scanner with reduced power x-ray source

Publications (3)

Publication Number Publication Date
GB9924423D0 GB9924423D0 (en) 1999-12-15
GB2340015A GB2340015A (en) 2000-02-09
GB2340015B true GB2340015B (en) 2000-04-26

Family

ID=27269248

Family Applications (4)

Application Number Title Priority Date Filing Date
GB9924409A Expired - Fee Related GB2340012B (en) 1995-11-02 1996-11-01 Computed tomography scanner with reduced power x-ray source
GB9924423A Expired - Fee Related GB2340015B (en) 1995-11-02 1996-11-01 Computed tomography scanner with reduced power x-ray source
GB9924420A Expired - Fee Related GB2340014B (en) 1995-11-02 1996-11-01 Computed tomography scanner with reduced power x-ray source
GB9924416A Expired - Fee Related GB2340013B (en) 1995-11-02 1996-11-01 Computed tomography scanner with reduced power x-ray source

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB9924409A Expired - Fee Related GB2340012B (en) 1995-11-02 1996-11-01 Computed tomography scanner with reduced power x-ray source

Family Applications After (2)

Application Number Title Priority Date Filing Date
GB9924420A Expired - Fee Related GB2340014B (en) 1995-11-02 1996-11-01 Computed tomography scanner with reduced power x-ray source
GB9924416A Expired - Fee Related GB2340013B (en) 1995-11-02 1996-11-01 Computed tomography scanner with reduced power x-ray source

Country Status (1)

Country Link
GB (4) GB2340012B (en)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4365155A (en) * 1979-03-28 1982-12-21 Hitachi, Ltd. Scintillator with ZnWO4 single crystal
US4547893A (en) * 1981-06-12 1985-10-15 Analogic Corporation Continuous wave fan beam tomography system having a best-estimating filter
US4785354A (en) * 1984-12-28 1988-11-15 Bridgestone Corporation Tire load test CT scanner
US4991189A (en) * 1990-04-16 1991-02-05 General Electric Company Collimation apparatus for x-ray beam correction
US5128864A (en) * 1989-08-09 1992-07-07 W. L. Systems, Inc. Method for computing tomographic scans
WO1994024939A1 (en) * 1993-04-22 1994-11-10 Lunar Corporation Reduced field-of-view ct system for imaging compact embedded structures
US5550886A (en) * 1994-11-22 1996-08-27 Analogic Corporation X-Ray focal spot movement compensation system

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4365155A (en) * 1979-03-28 1982-12-21 Hitachi, Ltd. Scintillator with ZnWO4 single crystal
US4547893A (en) * 1981-06-12 1985-10-15 Analogic Corporation Continuous wave fan beam tomography system having a best-estimating filter
US4785354A (en) * 1984-12-28 1988-11-15 Bridgestone Corporation Tire load test CT scanner
US5128864A (en) * 1989-08-09 1992-07-07 W. L. Systems, Inc. Method for computing tomographic scans
US4991189A (en) * 1990-04-16 1991-02-05 General Electric Company Collimation apparatus for x-ray beam correction
WO1994024939A1 (en) * 1993-04-22 1994-11-10 Lunar Corporation Reduced field-of-view ct system for imaging compact embedded structures
US5550886A (en) * 1994-11-22 1996-08-27 Analogic Corporation X-Ray focal spot movement compensation system

Also Published As

Publication number Publication date
GB9924409D0 (en) 1999-12-15
GB9924423D0 (en) 1999-12-15
GB2340012B (en) 2000-04-26
GB2340014B (en) 2000-04-26
GB2340013A (en) 2000-02-09
GB2340013B (en) 2000-04-26
GB9924416D0 (en) 1999-12-15
GB2340014A (en) 2000-02-09
GB2340012A (en) 2000-02-09
GB9924420D0 (en) 1999-12-15
GB2340015A (en) 2000-02-09

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Legal Events

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

Effective date: 20011101