GB1164859A - Tomography - Google Patents
TomographyInfo
- Publication number
- GB1164859A GB1164859A GB48751/67A GB4875167A GB1164859A GB 1164859 A GB1164859 A GB 1164859A GB 48751/67 A GB48751/67 A GB 48751/67A GB 4875167 A GB4875167 A GB 4875167A GB 1164859 A GB1164859 A GB 1164859A
- Authority
- GB
- United Kingdom
- Prior art keywords
- recorded
- angle
- source
- radiation
- recording means
- 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
Links
- 238000003325 tomography Methods 0.000 title abstract 2
- 230000005855 radiation Effects 0.000 abstract 3
- 238000001914 filtration Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 abstract 1
- 230000002093 peripheral effect Effects 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
- A61B6/06—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
- A61B6/58—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)
- Optics & Photonics (AREA)
- Biomedical Technology (AREA)
- Biophysics (AREA)
- High Energy & Nuclear Physics (AREA)
- Veterinary Medicine (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Public Health (AREA)
- Pathology (AREA)
- Radiology & Medical Imaging (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)
Abstract
1,164,859. Tomographic X-ray apparatus. TOKYO SHIBAURA ELECTRIC CO. Ltd. 26 Oct., 1967, No. 48751/67. Heading H5R. In the method of tomography wherein a selected layer of the body is recorded by oscillating the radiation source e.g. X-ray tube and image recording means coupled to said source and positioned on the opposite side of the body under scribing about an axis intersecting with and perpendicular to the body layer being recorded, the angle of spread of the radiation beam is controlled by a diaphragm in accordance with the angle turned through at any given instant by the source and recording means, the angle being measured from a known rest position. The diaphragm preferably also includes means for attenuating or filtering the radiation used. As a result of this beam spread, angular position relationship, the peripheral portions of the body are recorded on the developed film at the same intensity as the internal portions of the section; thus permitting the more accurate location of any areas of interest.
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US675972A US3484604A (en) | 1967-10-17 | 1967-10-17 | Axial transverse tomography wherein the angle of spread of radiation is controlled |
GB48751/67A GB1164859A (en) | 1967-10-17 | 1967-10-26 | Tomography |
NL6714606A NL134725C (en) | 1967-10-17 | 1967-10-27 | |
FR127793A FR1550456A (en) | 1967-10-17 | 1967-11-10 |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US67597267A | 1967-10-17 | 1967-10-17 | |
GB48751/67A GB1164859A (en) | 1967-10-17 | 1967-10-26 | Tomography |
NL6714606A NL134725C (en) | 1967-10-17 | 1967-10-27 | |
FR127793 | 1967-11-10 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1164859A true GB1164859A (en) | 1969-09-24 |
Family
ID=27444943
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB48751/67A Expired GB1164859A (en) | 1967-10-17 | 1967-10-26 | Tomography |
Country Status (4)
Country | Link |
---|---|
US (1) | US3484604A (en) |
FR (1) | FR1550456A (en) |
GB (1) | GB1164859A (en) |
NL (1) | NL134725C (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1478123A (en) * | 1973-08-18 | 1977-06-29 | Emi Ltd | Tomography |
DE2609925C2 (en) * | 1976-03-10 | 1982-06-09 | Philips Patentverwaltung Gmbh, 2000 Hamburg | Arrangement for determining the distribution of the absorption of a body |
US5449913A (en) * | 1993-11-03 | 1995-09-12 | Chang; Wei | Apparatus for producing attenuation scan |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1535359A (en) * | 1920-12-28 | 1925-04-28 | Tousey Sinclair | X-ray filter or screen |
DE1081186B (en) * | 1958-11-03 | 1960-05-05 | Mueller C H F Ag | Device for layer image recording devices |
US3248547A (en) * | 1963-10-21 | 1966-04-26 | Picker X Ray Corp | Device for accurately positioning X-ray filters in the beam path |
-
1967
- 1967-10-17 US US675972A patent/US3484604A/en not_active Expired - Lifetime
- 1967-10-26 GB GB48751/67A patent/GB1164859A/en not_active Expired
- 1967-10-27 NL NL6714606A patent/NL134725C/xx active
- 1967-11-10 FR FR127793A patent/FR1550456A/fr not_active Expired
Also Published As
Publication number | Publication date |
---|---|
NL134725C (en) | 1972-03-15 |
NL6714606A (en) | 1969-04-29 |
FR1550456A (en) | 1968-12-20 |
US3484604A (en) | 1969-12-16 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed [section 19, patents act 1949] | ||
746 | Register noted 'licences of right' (sect. 46/1977) | ||
PCNP | Patent ceased through non-payment of renewal fee |