NL8000120A - Werkwijze voor het bepalen van de lichaamsrand voor de rekonstruktie van de absorptie van straling in een vlak gebied van een lichaam. - Google Patents
Werkwijze voor het bepalen van de lichaamsrand voor de rekonstruktie van de absorptie van straling in een vlak gebied van een lichaam. Download PDFInfo
- Publication number
- NL8000120A NL8000120A NL8000120A NL8000120A NL8000120A NL 8000120 A NL8000120 A NL 8000120A NL 8000120 A NL8000120 A NL 8000120A NL 8000120 A NL8000120 A NL 8000120A NL 8000120 A NL8000120 A NL 8000120A
- Authority
- NL
- Netherlands
- Prior art keywords
- radiation
- area
- edge
- examination
- determined
- Prior art date
Links
- 230000005855 radiation Effects 0.000 title claims description 69
- 238000010521 absorption reaction Methods 0.000 title claims description 34
- 238000000034 method Methods 0.000 title claims description 18
- 239000013598 vector Substances 0.000 claims description 20
- 238000002835 absorbance Methods 0.000 claims description 6
- 238000005259 measurement Methods 0.000 claims description 4
- 238000001179 sorption measurement Methods 0.000 claims 1
- 238000003325 tomography Methods 0.000 description 4
- 238000004364 calculation method Methods 0.000 description 3
- 230000002093 peripheral effect Effects 0.000 description 2
- 238000012935 Averaging Methods 0.000 description 1
- 238000003491 array Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004020 luminiscence type Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 210000000056 organ Anatomy 0.000 description 1
- 238000002604 ultrasonography Methods 0.000 description 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
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/103—Detecting, measuring or recording devices for testing the shape, pattern, colour, size or movement of the body or parts thereof, for diagnostic purposes
- A61B5/107—Measuring physical dimensions, e.g. size of the entire body or parts thereof
- A61B5/1077—Measuring of profiles
-
- 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
- A61B6/08—Auxiliary means for directing the radiation beam to a particular spot, e.g. using light beams
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N23/00—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00
- G01N23/02—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by transmitting the radiation through the material
- G01N23/04—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by transmitting the radiation through the material and forming images of the material
- G01N23/046—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by transmitting the radiation through the material and forming images of the material using tomography, e.g. computed tomography [CT]
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2223/00—Investigating materials by wave or particle radiation
- G01N2223/40—Imaging
- G01N2223/419—Imaging computed tomograph
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S378/00—X-ray or gamma ray systems or devices
- Y10S378/901—Computer tomography program or processor
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Medical Informatics (AREA)
- Pathology (AREA)
- General Health & Medical Sciences (AREA)
- Physics & Mathematics (AREA)
- Surgery (AREA)
- Veterinary Medicine (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Radiology & Medical Imaging (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Molecular Biology (AREA)
- Public Health (AREA)
- Animal Behavior & Ethology (AREA)
- Biophysics (AREA)
- High Energy & Nuclear Physics (AREA)
- Optics & Photonics (AREA)
- Pulmonology (AREA)
- Theoretical Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Dentistry (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Analysing Materials By The Use Of Radiation (AREA)
- Apparatus For Radiation Diagnosis (AREA)
- Length-Measuring Devices Using Wave Or Particle Radiation (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19792901406 DE2901406A1 (de) | 1979-01-15 | 1979-01-15 | Verfahren zur ermittlung des koerperrandes zur rekonstruktion der absorption von strahlung in einem ebenen bereich eines koerpers |
| DE2901406 | 1979-01-15 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL8000120A true NL8000120A (nl) | 1980-07-17 |
Family
ID=6060622
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL8000120A NL8000120A (nl) | 1979-01-15 | 1980-01-09 | Werkwijze voor het bepalen van de lichaamsrand voor de rekonstruktie van de absorptie van straling in een vlak gebied van een lichaam. |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US4375696A (de) |
| JP (1) | JPS5596407A (de) |
| DE (1) | DE2901406A1 (de) |
| FR (1) | FR2446105A1 (de) |
| GB (1) | GB2040138B (de) |
| NL (1) | NL8000120A (de) |
| SE (1) | SE8000221L (de) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4442489A (en) * | 1979-06-16 | 1984-04-10 | U.S. Philips Corporation | Device for computed tomography |
| NL7905282A (nl) * | 1979-07-06 | 1981-01-08 | Philips Nv | Werkwijze en inrichting voor het bepalen van een stralingsabsorptieverdeling in een vlak van een lichaam. |
| US4368389A (en) * | 1980-06-26 | 1983-01-11 | Blum Alvin S | Photon emission tomographic apparatus and method |
| JPS60124904U (ja) * | 1984-01-31 | 1985-08-23 | 株式会社島津製作所 | 輪郭検出装置 |
| US4969110A (en) * | 1988-08-01 | 1990-11-06 | General Electric Company | Method of using a priori information in computerized tomography |
| US5133981A (en) * | 1989-11-17 | 1992-07-28 | Atrix Laboratories, Inc. | Purification of benzophenanthridine alkaloids extracts from alkaloid extracts |
| US5270926A (en) * | 1990-12-21 | 1993-12-14 | General Electric Company | Method and apparatus for reconstructing a three-dimensional computerized tomography (CT) image of an object from incomplete cone beam projection data |
| US5333164A (en) * | 1991-12-11 | 1994-07-26 | General Electric Company | Method and apparatus for acquiring and processing only a necessary volume of radon data consistent with the overall shape of the object for efficient three dimensional image reconstruction |
| FR2700259A1 (fr) * | 1993-01-13 | 1994-07-13 | Gen Electric Cgr | Dispositif automatique de collimation d'un faisceau de rayons X d'un scanner et procédé de mise en Óoeuvre. |
| US6055449A (en) * | 1997-09-22 | 2000-04-25 | Siemens Corporate Research, Inc. | Method for localization of a biopsy needle or similar surgical tool in a radiographic image |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3922552A (en) * | 1974-02-15 | 1975-11-25 | Robert S Ledley | Diagnostic X-ray systems |
| DE2551584A1 (de) * | 1975-11-17 | 1977-05-26 | Siemens Ag | Roentgen-schichtgeraet zur herstellung von transversal-schichtbildern |
| DE2753260A1 (de) * | 1977-11-30 | 1979-05-31 | Philips Patentverwaltung | Verfahren zur ermittlung der raeumlichen verteilung der absorption einer strahlung |
| US4181858A (en) * | 1977-12-30 | 1980-01-01 | Emi Limited | Adjustable compensating device for radiographic apparatus |
| DE2802593A1 (de) * | 1978-01-21 | 1979-07-26 | Philips Patentverwaltung | Geraet zur ermittlung der raeumlichen verteilung der absorption von strahlung in einem ebenen bereich |
-
1979
- 1979-01-15 DE DE19792901406 patent/DE2901406A1/de not_active Withdrawn
-
1980
- 1980-01-09 NL NL8000120A patent/NL8000120A/nl not_active Application Discontinuation
- 1980-01-11 GB GB8001006A patent/GB2040138B/en not_active Expired
- 1980-01-11 SE SE8000221A patent/SE8000221L/xx not_active Application Discontinuation
- 1980-01-11 FR FR8000590A patent/FR2446105A1/fr active Granted
- 1980-01-14 US US06/111,580 patent/US4375696A/en not_active Expired - Lifetime
- 1980-01-16 JP JP269280A patent/JPS5596407A/ja active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| FR2446105A1 (fr) | 1980-08-08 |
| US4375696A (en) | 1983-03-01 |
| GB2040138A (en) | 1980-08-20 |
| DE2901406A1 (de) | 1980-07-24 |
| FR2446105B1 (de) | 1983-07-22 |
| GB2040138B (en) | 1983-08-17 |
| SE8000221L (sv) | 1980-07-16 |
| JPS5596407A (en) | 1980-07-22 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| BV | The patent application has lapsed |