GB1539685A - Tomography scanning - Google Patents
Tomography scanningInfo
- Publication number
- GB1539685A GB1539685A GB39968/77A GB3996877A GB1539685A GB 1539685 A GB1539685 A GB 1539685A GB 39968/77 A GB39968/77 A GB 39968/77A GB 3996877 A GB3996877 A GB 3996877A GB 1539685 A GB1539685 A GB 1539685A
- Authority
- GB
- United Kingdom
- Prior art keywords
- detectors
- radiation
- fan
- shaped beam
- radiation source
- 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
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
- A61B6/42—Apparatus for radiation diagnosis, e.g. combined with radiation therapy equipment with arrangements for detecting radiation specially adapted for radiation diagnosis
- A61B6/4275—Apparatus for radiation diagnosis, e.g. combined with radiation therapy equipment with arrangements for detecting radiation specially adapted for radiation diagnosis using a detector unit almost surrounding the patient, e.g. more than 180°
-
- 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]
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Medical Informatics (AREA)
- Radiology & Medical Imaging (AREA)
- Molecular Biology (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)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Physics & Mathematics (AREA)
- Surgery (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Pulmonology (AREA)
- Theoretical Computer Science (AREA)
- Analysing Materials By The Use Of Radiation (AREA)
- Apparatus For Radiation Diagnosis (AREA)
- Photoreceptors In Electrophotography (AREA)
- Non-Silver Salt Photosensitive Materials And Non-Silver Salt Photography (AREA)
- Developing Agents For Electrophotography (AREA)
Abstract
A fan-shaped beam (13) of hard radiation is emitted from a radiation source (11). This fan-shaped beam penetrates an examination region (14) and then impinges on a row of detectors (16) in which the radiation values corresponding to the transparency in the cross-section of the examination region are detected. The detectors (16) are situated on a circular track concentrically relative to the axis of rotation of the radiation source (11), and thus receive as they rotate a sequence of measured data for specific cross-sectional regions in each case, which are displayed via evaluation devices (17, 21). This device permits high-power scanning with a high resolution, there being no need for precise matching of the amplification between the individual detectors. It is possible for the detectors to be routinely calibrated without the patient having to leave the measurement region. <IMAGE>
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US72655676A | 1976-09-27 | 1976-09-27 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1539685A true GB1539685A (en) | 1979-01-31 |
Family
ID=24919078
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB39968/77A Expired GB1539685A (en) | 1976-09-27 | 1977-09-26 | Tomography scanning |
Country Status (30)
| Country | Link |
|---|---|
| JP (1) | JPS5341989A (en) |
| AR (1) | AR215907A1 (en) |
| AT (1) | AT380165B (en) |
| AU (1) | AU508455B2 (en) |
| BE (1) | BE851918A (en) |
| BR (1) | BR7706396A (en) |
| CA (1) | CA1123974A (en) |
| CH (1) | CH616582A5 (en) |
| DD (1) | DD133399A5 (en) |
| DE (1) | DE2728815A1 (en) |
| DK (1) | DK82777A (en) |
| ES (1) | ES462511A1 (en) |
| FI (1) | FI61803C (en) |
| FR (1) | FR2365329A1 (en) |
| GB (1) | GB1539685A (en) |
| GR (1) | GR62632B (en) |
| HK (1) | HK43383A (en) |
| HU (1) | HU176639B (en) |
| IE (1) | IE45698B1 (en) |
| IL (1) | IL51336A (en) |
| IT (1) | IT1078364B (en) |
| MX (1) | MX143749A (en) |
| MY (1) | MY8300053A (en) |
| NL (1) | NL7709973A (en) |
| NO (1) | NO148209C (en) |
| PT (1) | PT67049B (en) |
| SE (1) | SE420158B (en) |
| SU (1) | SU650521A3 (en) |
| YU (1) | YU227277A (en) |
| ZA (1) | ZA775457B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4933961A (en) * | 1987-04-10 | 1990-06-12 | British Aerospace Public Limited Company | Imaging system |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3001103A1 (en) * | 1980-01-14 | 1981-07-16 | Siemens AG, 1000 Berlin und 8000 München | Transverse layer image computer tomograph - has ring of detectors narrowing trapezoidally towards scanning rotation centre |
| JPS61209641A (en) * | 1985-03-15 | 1986-09-17 | 株式会社東芝 | X-ray ct apparatus |
Family Cites Families (9)
| 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 |
| DE2024037B2 (en) * | 1970-05-16 | 1980-01-17 | Koch & Sterzel Gmbh & Co, 4300 Essen | Multiple axis X=ray examination appts - has chair adjustable in three directions and turning with bracket parallel to floor |
| DE2442809A1 (en) * | 1974-09-06 | 1976-03-18 | Philips Patentverwaltung | ARRANGEMENT FOR DETERMINING ABSORPTION IN A BODY |
| GB1529799A (en) * | 1974-11-13 | 1978-10-25 | Emi Ltd | Radiography |
| NL181622C (en) * | 1975-02-21 | 1987-10-01 | Emi Ltd | RADIO CONTROLLER. |
| FR2304321A1 (en) * | 1975-03-20 | 1976-10-15 | Emi Ltd | X-ray scanning system - with multiple detectors providing detailed absorption data for a body under examination |
| GB1571510A (en) * | 1976-02-25 | 1980-07-16 | Emi Ltd | Radiography |
| GB1571509A (en) * | 1976-03-03 | 1980-07-16 | Emi Ltd | Radiography |
| JPS558167A (en) * | 1978-07-04 | 1980-01-21 | Pioneer Electronic Corp | Voltage setting circuit |
-
1977
- 1977-01-26 IL IL51336A patent/IL51336A/en unknown
- 1977-01-27 GR GR52661A patent/GR62632B/en unknown
- 1977-01-31 FR FR7702654A patent/FR2365329A1/en active Granted
- 1977-02-01 IT IT19856/77A patent/IT1078364B/en active
- 1977-02-04 CA CA271,364A patent/CA1123974A/en not_active Expired
- 1977-02-25 DK DK82777A patent/DK82777A/en not_active Application Discontinuation
- 1977-02-28 BE BE175341A patent/BE851918A/en not_active IP Right Cessation
- 1977-03-23 JP JP3200377A patent/JPS5341989A/en active Pending
- 1977-03-30 SE SE7703692A patent/SE420158B/en not_active IP Right Cessation
- 1977-06-22 CH CH767577A patent/CH616582A5/en not_active IP Right Cessation
- 1977-06-27 DE DE19772728815 patent/DE2728815A1/en not_active Ceased
- 1977-09-08 AT AT0647277A patent/AT380165B/en not_active IP Right Cessation
- 1977-09-12 ZA ZA00775457A patent/ZA775457B/en unknown
- 1977-09-12 NL NL7709973A patent/NL7709973A/en not_active Application Discontinuation
- 1977-09-16 FI FI772730A patent/FI61803C/en not_active IP Right Cessation
- 1977-09-19 PT PT67049A patent/PT67049B/en unknown
- 1977-09-21 AU AU28979/77A patent/AU508455B2/en not_active Expired
- 1977-09-21 ES ES462511A patent/ES462511A1/en not_active Expired
- 1977-09-23 NO NO773279A patent/NO148209C/en unknown
- 1977-09-23 DD DD77201184A patent/DD133399A5/en unknown
- 1977-09-26 HU HU77AE512A patent/HU176639B/en unknown
- 1977-09-26 GB GB39968/77A patent/GB1539685A/en not_active Expired
- 1977-09-26 AR AR269334A patent/AR215907A1/en active
- 1977-09-26 SU SU772529050A patent/SU650521A3/en active
- 1977-09-26 YU YU02272/77A patent/YU227277A/en unknown
- 1977-09-26 BR BR7706396A patent/BR7706396A/en unknown
- 1977-09-27 IE IE1973/77A patent/IE45698B1/en unknown
- 1977-09-27 MX MX170706A patent/MX143749A/en unknown
-
1983
- 1983-10-20 HK HK433/83A patent/HK43383A/en unknown
- 1983-12-30 MY MY53/83A patent/MY8300053A/en unknown
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4933961A (en) * | 1987-04-10 | 1990-06-12 | British Aerospace Public Limited Company | Imaging system |
Also Published As
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed [section 19, patents act 1949] | ||
| 732 | Registration of transactions, instruments or events in the register (sect. 32/1977) | ||
| PCNP | Patent ceased through non-payment of renewal fee |