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ES455525A1 - Un dispositivo para medir la absorcion de radiacion en una rebanada de un cuerpo, particularmente en un paciente some- tido a rayos x. - Google Patents

Un dispositivo para medir la absorcion de radiacion en una rebanada de un cuerpo, particularmente en un paciente some- tido a rayos x.

Info

Publication number
ES455525A1
ES455525A1 ES455525A ES455525A ES455525A1 ES 455525 A1 ES455525 A1 ES 455525A1 ES 455525 A ES455525 A ES 455525A ES 455525 A ES455525 A ES 455525A ES 455525 A1 ES455525 A1 ES 455525A1
Authority
ES
Spain
Prior art keywords
slice
radiation
measuring absorption
measuring
measuring values
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
ES455525A
Other languages
English (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.)
Koninklijke Philips NV
Original Assignee
Philips Gloeilampenfabrieken NV
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 Philips Gloeilampenfabrieken NV filed Critical Philips Gloeilampenfabrieken NV
Publication of ES455525A1 publication Critical patent/ES455525A1/es
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
    • A61B6/02—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
    • A61B6/06—Diaphragms

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Medical Informatics (AREA)
  • Radiology & Medical Imaging (AREA)
  • Biomedical Technology (AREA)
  • Biophysics (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Veterinary Medicine (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Optics & Photonics (AREA)
  • Pathology (AREA)
  • Public Health (AREA)
  • Physics & Mathematics (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Molecular Biology (AREA)
  • Surgery (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Pulmonology (AREA)
  • Theoretical Computer Science (AREA)
  • Apparatus For Radiation Diagnosis (AREA)
  • Analysing Materials By The Use Of Radiation (AREA)
  • Measurement Of Radiation (AREA)

Abstract

Un dispositivo para medir la absorción de radiación en una porción de un cuerpo, particularmente en un paciente sometido a rayos X, dispositivo que comprende un radiador que emite un haz de radiación en abanico que envuelve por completo un cuerpo que se va a examinar, una formación o disposición regular de detectores, dispuestos detrás del cuerpo, para medir la intensidad local de radiación, y un mecanismo de movimiento para hacer girar el sistema de radiador y detectores durante una mediación, caracterizado por el hecho de habilitarse un dispositivo protector o de pantalla que se mueve con el radiador trasladándose durante la medición pero que no se hace girar, por lo menos mientras está presente en el trayecto de haz, siendo el ángulo de rotación del sistema de radiador y detectores igual a la suma del ángulo de exploración (beta) y el ángulo de abertura (alfa) del haz de radiación en abanico.
ES455525A 1976-02-03 1977-02-01 Un dispositivo para medir la absorcion de radiacion en una rebanada de un cuerpo, particularmente en un paciente some- tido a rayos x. Expired ES455525A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2604020A DE2604020C3 (de) 1976-02-03 1976-02-03 Vorrichtung zur Ermittlung der Absorption einer Strahlung in einer Ebene eines Körpers mit einer einen keilförmigen Strahlungsbereich ausblendenden Abblendvorrichtung

Publications (1)

Publication Number Publication Date
ES455525A1 true ES455525A1 (es) 1978-11-16

Family

ID=5968912

Family Applications (1)

Application Number Title Priority Date Filing Date
ES455525A Expired ES455525A1 (es) 1976-02-03 1977-02-01 Un dispositivo para medir la absorcion de radiacion en una rebanada de un cuerpo, particularmente en un paciente some- tido a rayos x.

Country Status (13)

Country Link
US (1) US4097747A (es)
JP (1) JPS5829091B2 (es)
AU (1) AU506027B2 (es)
BE (1) BE850985A (es)
BR (1) BR7700590A (es)
CA (1) CA1089118A (es)
DE (1) DE2604020C3 (es)
ES (1) ES455525A1 (es)
FR (1) FR2340555A1 (es)
GB (1) GB1577961A (es)
IT (1) IT1105543B (es)
NL (1) NL7700970A (es)
SE (1) SE7700959L (es)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2609925C2 (de) * 1976-03-10 1982-06-09 Philips Patentverwaltung Gmbh, 2000 Hamburg Anordnung zur Ermittlung der Verteilung der Absorption eines Körpers
US4132895A (en) * 1976-08-28 1979-01-02 Emi Limited Radiography
US4266135A (en) * 1977-07-01 1981-05-05 Ohio Nuclear, Inc. Method of determining collimator aperture efficiency and apparatus with an efficient collimator aperture size
US4190773A (en) * 1977-07-01 1980-02-26 Braden Arthur B Shutter for rotating source CT scanner
US4200800A (en) * 1977-11-03 1980-04-29 American Science & Engineering, Inc. Reduced dose CT scanning
DE2756659A1 (de) * 1977-12-19 1979-06-21 Philips Patentverwaltung Anordnung zur bestimmung der absorptionsverteilung
DE2939146A1 (de) * 1979-09-27 1981-04-16 Philips Patentverwaltung Gmbh, 2000 Hamburg Verfahren zur untersuchung eines koerpers mit durchdringender strahlung
FR2604082B1 (fr) * 1986-09-23 1994-06-03 Thomson Cgr Dispositif de mammographie
DE102013013552B3 (de) 2013-08-14 2014-07-03 Ziehm Imaging Gmbh Verfahren zur Aufnahme eines in der Zentralschicht vollständigen Projektionsdatensatzes zur CT- Rekonstruktion unter Verwendung eines C-Bogen-Röntgengeräts mit einem begrenzten Rotationsbereich

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3866047A (en) * 1968-08-23 1975-02-11 Emi Ltd Penetrating radiation examining apparatus having a scanning collimator
US3922552A (en) * 1974-02-15 1975-11-25 Robert S Ledley Diagnostic X-ray systems
GB1529799A (en) * 1974-11-13 1978-10-25 Emi Ltd Radiography
US3965353A (en) * 1974-12-06 1976-06-22 Albert Macovski Cross-sectional X-ray emission imaging system

Also Published As

Publication number Publication date
DE2604020A1 (de) 1977-08-04
FR2340555A1 (fr) 1977-09-02
US4097747A (en) 1978-06-27
AU2181977A (en) 1978-08-10
FR2340555B1 (es) 1982-01-15
IT1105543B (it) 1985-11-04
BR7700590A (pt) 1977-10-04
BE850985A (fr) 1977-08-01
SE7700959L (sv) 1977-08-04
GB1577961A (en) 1980-10-29
DE2604020B2 (de) 1980-04-10
DE2604020C3 (de) 1980-12-04
AU506027B2 (en) 1979-12-13
JPS5829091B2 (ja) 1983-06-20
NL7700970A (nl) 1977-08-05
CA1089118A (en) 1980-11-04
JPS5294788A (en) 1977-08-09

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