FR2260252B1 - - Google Patents

Info

Publication number
FR2260252B1
FR2260252B1 FR7502913A FR7502913A FR2260252B1 FR 2260252 B1 FR2260252 B1 FR 2260252B1 FR 7502913 A FR7502913 A FR 7502913A FR 7502913 A FR7502913 A FR 7502913A FR 2260252 B1 FR2260252 B1 FR 2260252B1
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
FR7502913A
Other versions
FR2260252A1 (fr
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 FR2260252A1 publication Critical patent/FR2260252A1/fr
Application granted granted Critical
Publication of FR2260252B1 publication Critical patent/FR2260252B1/fr
Expired legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B6/00—Apparatus for radiation diagnosis, e.g. combined with radiation therapy equipment
    • A61B6/02—Devices for diagnosis sequentially in different planes; Stereoscopic radiation diagnosis
    • A61B6/03—Computerised tomographs
    • A61B6/032—Transmission computed tomography [CT]
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B6/00—Apparatus for radiation diagnosis, e.g. combined with radiation therapy equipment
    • A61B6/50—Clinical applications
    • A61B6/501—Clinical applications involving diagnosis of head, e.g. neuroimaging, craniography
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B6/00—Apparatus for radiation diagnosis, e.g. combined with radiation therapy equipment
    • A61B6/58—Testing, adjusting or calibrating apparatus or devices for radiation diagnosis
    • A61B6/582—Calibration
    • A61B6/585—Calibration of detector units
    • 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
    • G06T11/006—Inverse problem, transformation from projection-space into object-space, e.g. transform methods, back-projection, algebraic methods
FR7502913A 1974-01-31 1975-01-30 Expired FR2260252B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4561/74A GB1493593A (en) 1974-01-31 1974-01-31 Radiography

Publications (2)

Publication Number Publication Date
FR2260252A1 FR2260252A1 (fr) 1975-08-29
FR2260252B1 true FR2260252B1 (fr) 1980-09-05

Family

ID=9779476

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7502913A Expired FR2260252B1 (fr) 1974-01-31 1975-01-30

Country Status (6)

Country Link
US (1) US4071760A (fr)
JP (1) JPS5441398B2 (fr)
DE (1) DE2503978C3 (fr)
FR (1) FR2260252B1 (fr)
GB (1) GB1493593A (fr)
NL (1) NL183336C (fr)

Families Citing this family (30)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4289968A (en) * 1975-01-23 1981-09-15 Emi Limited Radiography
DE2600266A1 (de) * 1976-01-07 1977-07-14 Philips Patentverwaltung Anordnung zur ermittlung der absorption einer strahlung
NL7704119A (nl) * 1976-04-19 1977-10-21 Varian Associates Tomografische aftastinrichting.
JPS52151587A (en) * 1976-04-19 1977-12-16 Varian Associates Sectional camera scanner
DE2627885A1 (de) * 1976-06-22 1978-01-05 Philips Patentverwaltung Anordnung zur ermittlung der raeumlichen verteilung der absorption von strahlung in einer ebene eines koerpers
GB1584954A (en) * 1976-08-17 1981-02-18 Emi Ltd Radiography
DE2648132A1 (de) * 1976-10-23 1978-04-27 Philips Patentverwaltung Verfahren und anordnung zur verminderung des einflusses von detektorfehlern bei roentgen-scannern
JPS5394787A (en) * 1977-01-31 1978-08-19 Toshiba Corp Tomographic diagnostic equipment by radiation
GB1595805A (en) * 1977-02-24 1981-08-19 Emi Ltd Radiography
DE2718943A1 (de) * 1977-04-28 1978-11-02 Philips Patentverwaltung Anordnung zur herstellung von roentgenschichtaufnahmen
JPS53143190A (en) * 1977-05-20 1978-12-13 Hitachi Medical Corp Xxray inspecting device
DE2723401A1 (de) * 1977-05-24 1978-12-07 Siemens Ag Schichtgeraet zur herstellung von transversalschichtbildern
CA1104727A (fr) * 1977-08-18 1981-07-07 Godfrey N. Hounsfield Explorateur ct a rotation uniquement avec deviation du faisceau
US4181939A (en) * 1977-12-30 1980-01-01 Union Carbide Corporation Scanner data multiplexer for interfacing a radiation detector array and a computer
DE2844927A1 (de) * 1978-10-14 1980-04-30 Philips Patentverwaltung Verfahren zur ermittlung des koerperrandes zur rekonstruktion einer absorptionsverteilung in einem ebenen untersuchungsbereich eines koerpers
US4278889A (en) * 1979-10-15 1981-07-14 Ohio Nuclear, Inc. Current amplifier with automatic drift correction for tomographic scanners
JPS56150512U (fr) * 1981-04-02 1981-11-11
US4578767A (en) * 1981-10-02 1986-03-25 Raytheon Company X-ray system tester
CA1196691A (fr) * 1982-01-12 1985-11-12 Bradley Fry Systeme et methodes de reconstruction pour imagerie a impedance
US4472823A (en) * 1982-03-17 1984-09-18 U.S. Philips Corporation Computed tomography apparatus with detector sensitivity correction
EP0109205A3 (fr) * 1982-11-15 1985-07-31 Picker International, Inc. Procédé et appareil d'imagerie de tomogrammes traités par ordinateur
DE3321057A1 (de) * 1983-06-09 1984-12-13 Philipp 8500 Nürnberg Röder Geraet zur untersuchung oder behandlung eines patienten mittels durchdringender strahlung
US4891829A (en) * 1986-11-19 1990-01-02 Exxon Research And Engineering Company Method and apparatus for utilizing an electro-optic detector in a microtomography system
US4870672A (en) * 1987-08-26 1989-09-26 General Electric Company Thermal emittance coating for x-ray tube target
FR2626432B1 (fr) * 1988-01-25 1995-10-13 Commissariat Energie Atomique Appareil de tomographie a rayons x
US4882494A (en) * 1988-02-26 1989-11-21 Michael D. Duncan Apparatus and method for flooding a nuclear imaging device with radiation from an imaging source
ES2085885T3 (es) * 1989-11-08 1996-06-16 George S Allen Brazo mecanico para sistema interactivo de cirugia dirigido por imagenes.
US5052119A (en) * 1989-12-27 1991-10-01 North American Philips Corporation Angular micro-positioning device
US5533081A (en) * 1995-01-17 1996-07-02 General Electric Company Guided ringfix algorithm for image reconstruction
US10067076B2 (en) 2013-12-23 2018-09-04 Johnson Matthey Public Limited Company Scanning method

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
US3784820A (en) * 1970-06-22 1974-01-08 Univ Case Western Reserve Tomographic scanning process
GB1389672A (en) * 1971-10-29 1975-04-03 Univ Sherbrooke Apparatus and method for the detection and measurement of radioactivity in the human body
US3780290A (en) * 1972-03-28 1973-12-18 Atomic Energy Commission Radiation camera motion correction system
FR2183387A5 (fr) * 1972-05-05 1973-12-14 Radiologie Cie Gle
GB1475492A (en) * 1973-06-01 1977-06-01 Emi Ltd Apparatus for examining objects by means of penetrating radiation

Also Published As

Publication number Publication date
JPS50124687A (fr) 1975-09-30
DE2503978A1 (de) 1975-08-07
JPS5441398B2 (fr) 1979-12-07
DE2503978B2 (de) 1980-05-08
DE2503978C3 (de) 1982-08-12
NL7501209A (nl) 1975-08-04
NL183336C (nl) 1988-10-03
NL183336B (nl) 1988-05-02
US4071760A (en) 1978-01-31
GB1493593A (en) 1977-11-30
FR2260252A1 (fr) 1975-08-29

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Legal Events

Date Code Title Description
TP Transmission of property