GB1463234A - Tomographic apparatus - Google Patents

Tomographic apparatus

Info

Publication number
GB1463234A
GB1463234A GB639575A GB639575A GB1463234A GB 1463234 A GB1463234 A GB 1463234A GB 639575 A GB639575 A GB 639575A GB 639575 A GB639575 A GB 639575A GB 1463234 A GB1463234 A GB 1463234A
Authority
GB
United Kingdom
Prior art keywords
frame
patient
source
detector
ray
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
GB639575A
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.)
DIGITAL INFORM SCIENCE
Original Assignee
DIGITAL INFORM SCIENCE
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 DIGITAL INFORM SCIENCE filed Critical DIGITAL INFORM SCIENCE
Publication of GB1463234A publication Critical patent/GB1463234A/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
    • A61B6/40—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
    • 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
    • A61B6/06—Diaphragms
    • 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
    • A61B6/08—Auxiliary means for directing the radiation beam to a particular spot, e.g. using light 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
    • A61B6/10—Safety means specially adapted therefor
    • 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
    • A61B6/44—Constructional features of apparatus for radiation diagnosis
    • A61B6/4429—Constructional features of apparatus for radiation diagnosis related to the mounting of source units and detector units
    • A61B6/4435—Constructional features of apparatus for radiation diagnosis related to the mounting of source units and detector units the source unit and the detector unit being coupled by a rigid structure
    • A61B6/4447—Tiltable gantries
    • 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
    • A61B6/50—Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment specially adapted for specific body parts; specially adapted for specific clinical applications
    • A61B6/501—Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment specially adapted for specific body parts; specially adapted for specific clinical applications for diagnosis of the head, e.g. neuroimaging or craniography
    • 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

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)
  • High Energy & Nuclear Physics (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Optics & Photonics (AREA)
  • Molecular Biology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Veterinary Medicine (AREA)
  • Pathology (AREA)
  • Surgery (AREA)
  • Animal Behavior & Ethology (AREA)
  • Biophysics (AREA)
  • Public Health (AREA)
  • Radiology & Medical Imaging (AREA)
  • Neurology (AREA)
  • Neurosurgery (AREA)
  • Dentistry (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • General Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Apparatus For Radiation Diagnosis (AREA)
  • Analysing Materials By The Use Of Radiation (AREA)

Abstract

1463234 X-ray diagnostic apparatus DIGITAL INFORMATION SCIENCE CORP 14 Feb 1975 [15 Feb 1974] 6395/75 Headings H4F and H5R Apparatus for examining a slice of a body by orbiting in incremental steps an X-ray source 96 and associated detector 98 around the body, and between each such orbital step laterally moving the source and detector across the body, the resulting absorption output signals being fed to a computer for processing to thereby derive a pictorial representation of the body slice. The apparatus comprises a vertical frame 20 having an opening therethrough of a size sufficiently large to permit a patient supported on a table to move therethrough. A carrier frame 60 having an opening co-extensive with the opening in frame 20 is supported on frame 20 and is rotated relative thereto around the patient, the source 96 and detector 98 being mounted on a third frame 80 which is movable transversely in the plane of frame 60 to effect the above lateral scanning action. The frame 20, and thus also frames 60 and 80 carried thereby, may be tilted about axis 21 relative to the patient so that slices of the patient other than vertical slices may be examined. This tilting is effected by adjustable bars interconnecting the top of the frame 20 with the top of a fixed frame 12 (Fig. 5, not shown) and when the frame 20 is tilted the table carrying the patient is automatically lowered. The table, or rather a stretcher, carrying the patient may be incrementally moved to thereby accurately locate the patient relative to the source and detector, the stretcher having a rack formed in its bottom side which engages with a stepping motor on the table (Fig. 5, not shown). Counterbalance weights 70a and 70b are provided on frame 60 which are moved in the opposite directions to the source and detector as the frame 80 (and thus the source and detector) are transversely moved across the patient. The apparatus also includes a shutter arrangement which interrupts the X-ray beam from source 96 until such time as the patient approaches the beam (Figs. 11A-11B, not shown), the shutter being actuated when a light beam is interrupted by a band of X-ray transparent material which is opaque to the light that is wrapped around the patient's body or head.
GB639575A 1974-02-15 1975-02-14 Tomographic apparatus Expired GB1463234A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US443042A US3922552A (en) 1974-02-15 1974-02-15 Diagnostic X-ray systems
AU34577/78A AU518378B2 (en) 1974-02-15 1978-03-29 Tomographic scanner

Publications (1)

Publication Number Publication Date
GB1463234A true GB1463234A (en) 1977-02-02

Family

ID=25622939

Family Applications (1)

Application Number Title Priority Date Filing Date
GB639575A Expired GB1463234A (en) 1974-02-15 1975-02-14 Tomographic apparatus

Country Status (8)

Country Link
US (1) US3922552A (en)
JP (1) JPS50122292A (en)
AT (1) AT353899B (en)
AU (1) AU518378B2 (en)
CA (1) CA1025131A (en)
DE (1) DE2506377A1 (en)
FR (1) FR2260977B1 (en)
GB (1) GB1463234A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4464775A (en) * 1980-10-08 1984-08-07 Tokyo Shibaura Denki Kabushiki Kaisha Method and apparatus for collecting X-ray absorption data in X-ray computed tomography apparatus

Families Citing this family (43)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3973127A (en) * 1974-10-09 1976-08-03 Tokyo Shibaura Electric Co., Ltd. X-ray tomography apparatus
GB1564116A (en) * 1975-10-02 1980-04-02 Emi Ltd Driving and positioning arrangement for radiography
DE2604020C3 (en) * 1976-02-03 1980-12-04 Philips Patentverwaltung Gmbh, 2000 Hamburg Device for determining the absorption of radiation in a plane of a body with a masking device that fades out a wedge-shaped radiation region
US4177382A (en) * 1976-04-28 1979-12-04 E M I Limited Radiography
GB1584953A (en) * 1976-07-28 1981-02-18 Emi Ltd Radiography
NL171222C (en) * 1976-10-01 1983-03-01 Philips Nv APPARATUS FOR MEASURING LOCAL ABSORPTION DIFFERENCES.
JPS5746967Y2 (en) * 1976-11-30 1982-10-15
JPS582695B2 (en) * 1977-02-14 1983-01-18 株式会社東芝 Inspection device using penetrating radiation
US4093860A (en) * 1977-02-25 1978-06-06 General Electric Company Gantry for computed tomography
FR2381507A1 (en) * 1977-02-25 1978-09-22 Gen Electric TILTING STRUCTURE FOR X-RAY TOMOGRAPHY DEVICE
US4088888A (en) * 1977-02-25 1978-05-09 General Electric Company Gantry for computed tomography
US4093861A (en) * 1977-02-25 1978-06-06 General Electric Company Gantry for computed tomography
US4093862A (en) * 1977-02-25 1978-06-06 General Electric Company Gantry for computed tomography
US4115695A (en) * 1977-02-25 1978-09-19 General Electric Company Gantry for computed tomography
US4112303A (en) * 1977-02-25 1978-09-05 General Electric Company Gantry for computed tomography
DE2714759C3 (en) * 1977-04-01 1981-03-26 Siemens AG, 1000 Berlin und 8000 München X-ray diagnostic device for the production of transverse slice images
JPS53123692A (en) * 1977-04-05 1978-10-28 Toshiba Corp X-ray tomograph by computer operation
JPS6027532B2 (en) * 1977-04-16 1985-06-29 株式会社東芝 CT scanner
GB1603346A (en) * 1977-05-13 1981-11-25 Hitachi Medical Corp Scanning apparatus for cross-sectional inspection equipment
JPS53143191A (en) * 1977-05-20 1978-12-13 Hitachi Medical Corp Xxray inspecting device
US4114043A (en) * 1977-05-20 1978-09-12 U.S. Philips Corporation Cable-supporting arrangement for x-ray tomographic scanner
US4136284A (en) * 1977-06-16 1979-01-23 Elscint Ltd. Apparatus for examining a body by means of penetrating radiation
US4200800A (en) * 1977-11-03 1980-04-29 American Science & Engineering, Inc. Reduced dose CT scanning
DE2802593A1 (en) * 1978-01-21 1979-07-26 Philips Patentverwaltung DEVICE FOR DETERMINING THE SPATIAL DISTRIBUTION OF THE ABSORPTION OF RADIATION IN A LEVEL
JPS5837363Y2 (en) * 1978-02-20 1983-08-23 株式会社日立メデイコ Tilting device for CT equipment
US4284895A (en) * 1978-02-21 1981-08-18 Ira Lon Morgan Method and apparatus for tomographic examination of an object by penetrating radiation
US4253027A (en) * 1978-06-14 1981-02-24 Ohio-Nuclear, Inc. Tomographic scanner
DE2829179C2 (en) * 1978-07-03 1982-06-09 Siemens AG, 1000 Berlin und 8000 München Layering device for the production of transverse slice images of a subject
FR2431853A1 (en) * 1978-07-27 1980-02-22 Radiologie Cie Gle METHOD FOR AUTOMATIC CENTERING OF AN OBJECT TO BE EXAMINED IN A FAN BEAM TOMODENSITOMETER AND TOMODENSITOMETER SUITABLE FOR THIS METHOD
DE2901406A1 (en) * 1979-01-15 1980-07-24 Philips Patentverwaltung METHOD FOR DETERMINING THE BODY BORDER FOR RECONSTRUCTING THE ABSORPTION OF RADIATION IN A PLANE AREA OF A BODY
JPS5849256B2 (en) * 1979-01-23 1983-11-02 株式会社東芝 Radiation tomography device
DE2944147A1 (en) * 1979-11-02 1981-05-14 Philips Patentverwaltung Gmbh, 2000 Hamburg ARRANGEMENT FOR DETERMINING THE SPREAD DENSITY DISTRIBUTION IN A LEVEL EXAMINATION AREA
DE3010780A1 (en) * 1980-03-20 1981-09-24 Siemens AG, 1000 Berlin und 8000 München RAY DIAGNOSTIC DEVICE
US4493039A (en) * 1980-05-06 1985-01-08 President And Directors Of Georgetown University Apparatus and method for image reproduction of materials using their magnetic and electric properties
DE3126643A1 (en) * 1981-07-06 1983-01-20 Siemens AG, 1000 Berlin und 8000 München "RADIATION DIAGNOSTIC DEVICE"
JPS5964069A (en) * 1982-10-04 1984-04-11 バリアン・アソシエイツ・インコ−ポレイテツド Sight level apparatus for electronic arc treatment
US5042487A (en) * 1989-11-13 1991-08-27 Marquardt Mark R Examination unit including positionable patient chair, examination device and support system
US5287546A (en) * 1992-09-14 1994-02-15 Lunar Corporation Patient positioning apparatus for bone scanning
US5651047A (en) 1993-01-25 1997-07-22 Cardiac Mariners, Incorporated Maneuverable and locateable catheters
US5682412A (en) * 1993-04-05 1997-10-28 Cardiac Mariners, Incorporated X-ray source
US5550378A (en) * 1993-04-05 1996-08-27 Cardiac Mariners, Incorporated X-ray detector
US6234671B1 (en) 1998-10-06 2001-05-22 Cardiac Mariners, Inc. X-ray system with scanning beam x-ray source below object table
US6198802B1 (en) 1998-10-06 2001-03-06 Cardiac Mariners, Inc. Scanning beam x-ray source and assembly

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3432657A (en) * 1965-07-06 1969-03-11 Intelligent Instr Inc X-ray helical scanning means for displaying an image of an object within the body being scanned
GB1283915A (en) * 1968-08-23 1972-08-02 Emi Ltd A method of and apparatus for examination of a body by radiation such as x or gamma radiation
FR2088964A5 (en) * 1970-04-30 1972-01-07 Radiologie Cie Gle
US3708664A (en) * 1970-11-12 1973-01-02 Gen Electric Diagnostic x-ray system
JPS4711196U (en) * 1971-02-24 1972-10-09

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4464775A (en) * 1980-10-08 1984-08-07 Tokyo Shibaura Denki Kabushiki Kaisha Method and apparatus for collecting X-ray absorption data in X-ray computed tomography apparatus

Also Published As

Publication number Publication date
JPS50122292A (en) 1975-09-25
CA1025131A (en) 1978-01-24
ATA115175A (en) 1979-05-15
DE2506377A1 (en) 1976-11-11
AU518378B2 (en) 1981-10-01
FR2260977B1 (en) 1979-05-11
US3922552A (en) 1975-11-25
AU3457778A (en) 1978-07-20
FR2260977A1 (en) 1975-09-12
AT353899B (en) 1979-12-10

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee