FR2431852A1 - Appareil de tomographie axiale transverse - Google Patents
Appareil de tomographie axiale transverseInfo
- Publication number
- FR2431852A1 FR2431852A1 FR7822267A FR7822267A FR2431852A1 FR 2431852 A1 FR2431852 A1 FR 2431852A1 FR 7822267 A FR7822267 A FR 7822267A FR 7822267 A FR7822267 A FR 7822267A FR 2431852 A1 FR2431852 A1 FR 2431852A1
- Authority
- FR
- France
- Prior art keywords
- conjunction
- photographic film
- direct printing
- radiation
- axial tomography
- 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.)
- Withdrawn
Links
- 238000010017 direct printing Methods 0.000 title abstract 2
- 238000003325 tomography Methods 0.000 title abstract 2
- 230000005855 radiation Effects 0.000 abstract 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 abstract 1
- 229910052802 copper Inorganic materials 0.000 abstract 1
- 239000010949 copper Substances 0.000 abstract 1
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
- A61B6/40—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
-
- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21K—TECHNIQUES FOR HANDLING PARTICLES OR IONISING RADIATION NOT OTHERWISE PROVIDED FOR; IRRADIATION DEVICES; GAMMA RAY OR X-RAY MICROSCOPES
- G21K1/00—Arrangements for handling particles or ionising radiation, e.g. focusing or moderating
- G21K1/10—Scattering devices; Absorbing devices; Ionising radiation filters
-
- 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
- A61B6/42—Arrangements for detecting radiation specially adapted for radiation diagnosis
- A61B6/4291—Arrangements for detecting radiation specially adapted for radiation diagnosis the detector being combined with a grid or grating
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Medical Informatics (AREA)
- Physics & Mathematics (AREA)
- High Energy & Nuclear Physics (AREA)
- Heart & Thoracic Surgery (AREA)
- Animal Behavior & Ethology (AREA)
- Optics & Photonics (AREA)
- Pathology (AREA)
- Radiology & Medical Imaging (AREA)
- Biomedical Technology (AREA)
- Biophysics (AREA)
- Molecular Biology (AREA)
- Surgery (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Spectroscopy & Molecular Physics (AREA)
- General Engineering & Computer Science (AREA)
- Pulmonology (AREA)
- Theoretical Computer Science (AREA)
- Apparatus For Radiation Diagnosis (AREA)
Abstract
L'invention concerne un appareil radiologique pour tomographie axiale transverse par impression directe d'une pellicule photographique. La grille filtrante plane, à épaisseur variable, est remplacée par une feuille de cuivre d'épaisseur constante, légèrement incurvée pour être en tous points sensiblement normale au faisceau. Cette disposition permet de diminuer notablement la distance du sujet à examiner à la cassette, ce qui produit une meilleure définition du cliché et une diminution du grandissement. Tomographe particulièrement bien adapté aux examens de sujets à grandes mensurations.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7822267A FR2431852A1 (fr) | 1978-07-27 | 1978-07-27 | Appareil de tomographie axiale transverse |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7822267A FR2431852A1 (fr) | 1978-07-27 | 1978-07-27 | Appareil de tomographie axiale transverse |
Publications (1)
Publication Number | Publication Date |
---|---|
FR2431852A1 true FR2431852A1 (fr) | 1980-02-22 |
Family
ID=9211262
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7822267A Withdrawn FR2431852A1 (fr) | 1978-07-27 | 1978-07-27 | Appareil de tomographie axiale transverse |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR2431852A1 (fr) |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3222692A (en) * | 1963-12-16 | 1965-12-14 | Ca Atomic Energy Ltd | Support for therapy equipment |
FR1531983A (fr) * | 1966-07-23 | 1968-07-05 | Tokyo Shibaura Electric Co | Appareil de radiographie dit de rotatographie |
FR2140703A5 (fr) * | 1970-12-08 | 1973-01-19 | France Etat | |
FR2365330A1 (fr) * | 1976-09-23 | 1978-04-21 | Emi Ltd | Perfectionnements a la radiographie |
-
1978
- 1978-07-27 FR FR7822267A patent/FR2431852A1/fr not_active Withdrawn
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3222692A (en) * | 1963-12-16 | 1965-12-14 | Ca Atomic Energy Ltd | Support for therapy equipment |
FR1531983A (fr) * | 1966-07-23 | 1968-07-05 | Tokyo Shibaura Electric Co | Appareil de radiographie dit de rotatographie |
FR2140703A5 (fr) * | 1970-12-08 | 1973-01-19 | France Etat | |
FR2365330A1 (fr) * | 1976-09-23 | 1978-04-21 | Emi Ltd | Perfectionnements a la radiographie |
Non-Patent Citations (1)
Title |
---|
NV768/70 * |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
AU8534191A (en) | Marked x-ray film with modified cassette for identifying the exposure side of a medical radiograph | |
FR2431852A1 (fr) | Appareil de tomographie axiale transverse | |
FR2623079B1 (fr) | Dispositif de mammographie | |
GB1405735A (en) | Process and apparatus for making a substracted image radiographic record | |
GB1366275A (en) | Radiodiagnostic apparatus intended in particular for pediatric applications | |
US2967939A (en) | Gammagraph for medical purposes | |
Harrison et al. | Evaluation of radiation dose and risk to the patient from coronary angiography | |
Beaman et al. | Tungsten anode tubes with K-edge filters for mammography | |
WO1993007476A3 (fr) | Dispositif d'angiographie numerique soustractive | |
Skucas et al. | Comparison of the image quality of 105mm film with conventional film | |
Koshiba et al. | Use of Polaroid film in intraoperative renal radiography: a new technique | |
GB2060935B (en) | Cassette with intensifying screens for use with radiographic film | |
Lewis | Larynx examination by spot-films | |
Springer et al. | High-energy radiography (Cobalt 60 and Cesium 137) for tumor localization and treatment planning | |
Deibeiit et al. | Solarized Roentgenographic Duplication | |
Soila et al. | Fast tungstate screens in clinical radiography | |
SORENSON | Radiographic Photography and Imaging Processes | |
CRITTENDEN et al. | Simplified subtraction | |
Chamberlain et al. | The Chest Roentgenogram and Chest Roentgenographic Surveys Related to X-Ray Radiation Effects and Protection from Radiation Exposure: A Statement of the Committee on Radiation Effects | |
Goldman et al. | A film changer for small animals | |
JPS59214800A (ja) | X線補償フイルタ可変装置付x線透視撮影装置 | |
FR2245979A1 (en) | Medical X-ray appts. - incorporates optical system for transposing information on patient's data card onto X-ray film | |
Chait et al. | Positive Prints of Dense Roentgenograms: A Teaching Aid | |
Darby et al. | A protected loading device for thin 192Ir wires | |
Pennock | Principles of Veterinary Radiography |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |