SE7703692L - TOMOGRAPHY APPARATUS - Google Patents
TOMOGRAPHY APPARATUSInfo
- Publication number
- SE7703692L SE7703692L SE7703692A SE7703692A SE7703692L SE 7703692 L SE7703692 L SE 7703692L SE 7703692 A SE7703692 A SE 7703692A SE 7703692 A SE7703692 A SE 7703692A SE 7703692 L SE7703692 L SE 7703692L
- Authority
- SE
- Sweden
- Prior art keywords
- detectors
- radiation
- fan
- shaped beam
- radiation source
- Prior art date
Links
- 238000003325 tomography Methods 0.000 title 1
- 230000005855 radiation Effects 0.000 abstract 4
- 230000003321 amplification Effects 0.000 abstract 1
- 238000011156 evaluation Methods 0.000 abstract 1
- 238000005259 measurement Methods 0.000 abstract 1
- 238000003199 nucleic acid amplification method Methods 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
- A61B6/42—Arrangements for detecting radiation specially adapted for radiation diagnosis
- A61B6/4275—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 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]
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Medical Informatics (AREA)
- Heart & Thoracic Surgery (AREA)
- Animal Behavior & Ethology (AREA)
- Biophysics (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Optics & Photonics (AREA)
- Pathology (AREA)
- Radiology & Medical Imaging (AREA)
- Biomedical Technology (AREA)
- Physics & Mathematics (AREA)
- Molecular Biology (AREA)
- Surgery (AREA)
- High Energy & Nuclear Physics (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (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 (2)
| Publication Number | Publication Date |
|---|---|
| SE7703692L true SE7703692L (en) | 1978-03-28 |
| SE420158B SE420158B (en) | 1981-09-21 |
Family
ID=24919078
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SE7703692A SE420158B (en) | 1976-09-27 | 1977-03-30 | tomography |
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) |
Families Citing this family (3)
| 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 |
| DE3875999T2 (en) * | 1987-04-10 | 1993-03-25 | British Aerospace | IMAGE PLANT. |
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 NL NL7709973A patent/NL7709973A/en not_active Application Discontinuation
- 1977-09-12 ZA ZA00775457A patent/ZA775457B/en unknown
- 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 DD DD77201184A patent/DD133399A5/en unknown
- 1977-09-23 NO NO773279A patent/NO148209C/en unknown
- 1977-09-26 SU SU772529050A patent/SU650521A3/en active
- 1977-09-26 AR AR269334A patent/AR215907A1/en active
- 1977-09-26 YU YU02272/77A patent/YU227277A/en unknown
- 1977-09-26 GB GB39968/77A patent/GB1539685A/en not_active Expired
- 1977-09-26 BR BR7706396A patent/BR7706396A/en unknown
- 1977-09-26 HU HU77AE512A patent/HU176639B/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
Also Published As
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| NUG | Patent has lapsed |
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