FR2264516A1 - Radiographic examination unit - uses predicted signals from various ray receivers to counteract discrepancies in sensitivity - Google Patents
Radiographic examination unit - uses predicted signals from various ray receivers to counteract discrepancies in sensitivityInfo
- Publication number
- FR2264516A1 FR2264516A1 FR7508902A FR7508902A FR2264516A1 FR 2264516 A1 FR2264516 A1 FR 2264516A1 FR 7508902 A FR7508902 A FR 7508902A FR 7508902 A FR7508902 A FR 7508902A FR 2264516 A1 FR2264516 A1 FR 2264516A1
- Authority
- FR
- France
- Prior art keywords
- discrepancies
- receivers
- sensitivity
- counteract
- examination unit
- 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.)
- Granted
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
- A61B6/02—Devices for diagnosis sequentially in different planes; Stereoscopic radiation diagnosis
- A61B6/03—Computerised tomographs
- A61B6/032—Transmission computed tomography [CT]
-
- 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
- A61B6/40—Apparatus for radiation diagnosis, e.g. combined with radiation therapy equipment with arrangements for generating radiation specially adapted for radiation diagnosis
- A61B6/4021—Apparatus for radiation diagnosis, e.g. combined with radiation therapy equipment with arrangements for generating radiation specially adapted for radiation diagnosis involving movement of the focal spot
- A61B6/4028—Apparatus for radiation diagnosis, e.g. combined with radiation therapy equipment with arrangements for generating radiation specially adapted for radiation diagnosis involving movement of the focal spot resulting in acquisition of views from substantially different positions, e.g. EBCT
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T11/00—2D [Two Dimensional] image generation
- G06T11/003—Reconstruction from projections, e.g. tomography
-
- 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
- A61B6/4291—Apparatus for radiation diagnosis, e.g. combined with radiation therapy equipment with arrangements for detecting radiation specially adapted for radiation diagnosis the detector being combined with a grid or grating
-
- 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
- A61B6/44—Constructional features of apparatus for radiation diagnosis
- A61B6/4488—Means for cooling
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB13018/74A GB1497396A (en) | 1974-03-23 | 1974-03-23 | Radiography |
GB1740274 | 1974-04-20 | ||
GB3303374 | 1974-07-26 |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2264516A1 true FR2264516A1 (en) | 1975-10-17 |
FR2264516B1 FR2264516B1 (fr) | 1977-11-25 |
Family
ID=27256920
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7508902A Granted FR2264516A1 (en) | 1974-03-23 | 1975-03-21 | Radiographic examination unit - uses predicted signals from various ray receivers to counteract discrepancies in sensitivity |
Country Status (4)
Country | Link |
---|---|
JP (1) | JPS5444597B2 (fr) |
DE (1) | DE2513137C3 (fr) |
FR (1) | FR2264516A1 (fr) |
NL (1) | NL179783C (fr) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2304321A1 (fr) * | 1975-03-20 | 1976-10-15 | Emi Ltd | Appareil de tomographie a multiples detecteurs |
FR2397085A1 (fr) * | 1977-07-07 | 1979-02-02 | Philips Nv | Guidage de cable et dispositif medical muni d'un tel guidage |
Families Citing this family (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1529799A (en) | 1974-11-13 | 1978-10-25 | Emi Ltd | Radiography |
US4149247A (en) * | 1975-12-23 | 1979-04-10 | Varian Associates, Inc. | Tomographic apparatus and method for reconstructing planar slices from non-absorbed and non-scattered radiation |
NL7601219A (nl) * | 1976-02-06 | 1977-08-09 | Philips Nv | Roentgensysteem met een roentgenstraler- en een roentgendetector aandrijving. |
DE2628493C2 (de) * | 1976-06-25 | 1983-03-10 | Siemens AG, 1000 Berlin und 8000 München | Röntgenschichtgerät zur Herstellung von Transversal-Schichtbildern mit einer um den Fokus einer Röntgenröhre gekrümmten Reihe von Detektoren |
GB1584954A (en) * | 1976-08-17 | 1981-02-18 | Emi Ltd | Radiography |
GB1592084A (en) * | 1976-09-16 | 1981-07-01 | Gen Electric | Computerized tomographic system |
US4107531A (en) * | 1976-09-16 | 1978-08-15 | General Electric Company | X-ray body scanner using encoder for generating system controlling timing pulse train |
JPS5399893A (en) * | 1977-02-14 | 1978-08-31 | Toshiba Corp | Cable processor |
JPS53115778U (fr) * | 1977-02-22 | 1978-09-14 | ||
FR2381507A1 (fr) * | 1977-02-25 | 1978-09-22 | Gen Electric | Structure basculante pour appareil de tomographie a rayons x |
US4093861A (en) * | 1977-02-25 | 1978-06-06 | General Electric Company | Gantry for computed tomography |
US4115695A (en) * | 1977-02-25 | 1978-09-19 | General Electric Company | Gantry for computed tomography |
US4093862A (en) * | 1977-02-25 | 1978-06-06 | General Electric Company | Gantry for computed tomography |
GB1603345A (en) * | 1977-05-13 | 1981-11-25 | Hitachi Medical Corp | Scanning apparatus for cross-sectional inspection equipment |
NL7705788A (nl) * | 1977-05-26 | 1978-11-28 | Philips Nv | Inrichting voor computer-tomografie. |
JPS5477270A (en) * | 1977-12-01 | 1979-06-20 | Tdk Corp | Metal or alloy magnetic powder and its manufacture |
DE3012648A1 (de) * | 1980-04-01 | 1981-10-08 | Philips Patentverwaltung Gmbh, 2000 Hamburg | Computer-tomographiegeraet |
DE19832276C2 (de) * | 1998-07-17 | 2002-10-24 | Siemens Ag | Verfahren zur Rekonstruktion von aus mittels eines CT-Gerätes durch Spiralabtastung gewonnenen Meßwerten |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2549402A (en) * | 1948-04-01 | 1951-04-17 | Jr Carl A Vossberg | X-ray measuring system |
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 |
-
1975
- 1975-03-20 JP JP3418075A patent/JPS5444597B2/ja not_active Expired
- 1975-03-21 FR FR7508902A patent/FR2264516A1/fr active Granted
- 1975-03-22 DE DE2513137A patent/DE2513137C3/de not_active Expired
- 1975-03-24 NL NLAANVRAGE7503520,A patent/NL179783C/xx not_active IP Right Cessation
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2304321A1 (fr) * | 1975-03-20 | 1976-10-15 | Emi Ltd | Appareil de tomographie a multiples detecteurs |
FR2397085A1 (fr) * | 1977-07-07 | 1979-02-02 | Philips Nv | Guidage de cable et dispositif medical muni d'un tel guidage |
Also Published As
Publication number | Publication date |
---|---|
DE2513137B2 (de) | 1980-05-29 |
NL7503520A (nl) | 1975-09-25 |
NL179783C (nl) | 1986-11-17 |
FR2264516B1 (fr) | 1977-11-25 |
JPS50133878A (fr) | 1975-10-23 |
JPS5444597B2 (fr) | 1979-12-26 |
NL179783B (nl) | 1986-06-16 |
DE2513137C3 (de) | 1982-07-08 |
DE2513137A1 (de) | 1975-10-09 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
TP | Transmission of property |