CA1071773A - Method and apparatus for computerized tomography - Google Patents
Method and apparatus for computerized tomographyInfo
- Publication number
- CA1071773A CA1071773A CA266,564A CA266564A CA1071773A CA 1071773 A CA1071773 A CA 1071773A CA 266564 A CA266564 A CA 266564A CA 1071773 A CA1071773 A CA 1071773A
- Authority
- CA
- Canada
- Prior art keywords
- ring
- elements
- signals
- concentric
- attenuation
- 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
- 238000000034 method Methods 0.000 title claims abstract description 36
- 238000003325 tomography Methods 0.000 title description 6
- 230000005251 gamma ray Effects 0.000 claims abstract description 21
- 230000009102 absorption Effects 0.000 claims abstract description 18
- 238000010521 absorption reaction Methods 0.000 claims abstract description 18
- 230000005540 biological transmission Effects 0.000 claims abstract description 10
- 238000005259 measurement Methods 0.000 claims description 30
- 239000011159 matrix material Substances 0.000 claims description 27
- 230000004044 response Effects 0.000 claims description 23
- 239000007787 solid Substances 0.000 claims description 3
- 230000000875 corresponding effect Effects 0.000 claims 6
- 238000007493 shaping process Methods 0.000 claims 2
- 239000013078 crystal Substances 0.000 description 8
- 230000007423 decrease Effects 0.000 description 7
- 238000013459 approach Methods 0.000 description 5
- 230000008901 benefit Effects 0.000 description 5
- 230000006870 function Effects 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 238000001514 detection method Methods 0.000 description 4
- 238000011835 investigation Methods 0.000 description 4
- 230000033001 locomotion Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 238000013519 translation Methods 0.000 description 3
- 101100400378 Mus musculus Marveld2 gene Proteins 0.000 description 2
- 230000005856 abnormality Effects 0.000 description 2
- 238000004364 calculation method Methods 0.000 description 2
- 238000004590 computer program Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000013480 data collection Methods 0.000 description 2
- 238000013500 data storage Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000000704 physical effect Effects 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 210000001519 tissue Anatomy 0.000 description 2
- 230000000007 visual effect Effects 0.000 description 2
- 238000012935 Averaging Methods 0.000 description 1
- 208000014644 Brain disease Diseases 0.000 description 1
- 240000008100 Brassica rapa Species 0.000 description 1
- 206010028980 Neoplasm Diseases 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- 238000002583 angiography Methods 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 229910052790 beryllium Inorganic materials 0.000 description 1
- ATBAMAFKBVZNFJ-UHFFFAOYSA-N beryllium atom Chemical compound [Be] ATBAMAFKBVZNFJ-UHFFFAOYSA-N 0.000 description 1
- 210000004556 brain Anatomy 0.000 description 1
- 230000002844 continuous effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000000977 initiatory effect Effects 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000002285 radioactive effect Effects 0.000 description 1
- 210000004872 soft tissue Anatomy 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- 230000002311 subsequent effect Effects 0.000 description 1
- FBWNMEQMRUMQSO-UHFFFAOYSA-N tergitol NP-9 Chemical compound CCCCCCCCCC1=CC=C(OCCOCCOCCOCCOCCOCCOCCOCCOCCO)C=C1 FBWNMEQMRUMQSO-UHFFFAOYSA-N 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 238000009827 uniform distribution Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 229910052724 xenon Inorganic materials 0.000 description 1
- FHNFHKCVQCLJFQ-UHFFFAOYSA-N xenon atom Chemical compound [Xe] FHNFHKCVQCLJFQ-UHFFFAOYSA-N 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
- A61B6/00—Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment
- A61B6/44—Constructional features of apparatus for radiation diagnosis
- A61B6/4429—Constructional features of apparatus for radiation diagnosis related to the mounting of source units and detector units
- A61B6/4435—Constructional features of apparatus for radiation diagnosis related to the mounting of source units and detector units the source unit and the detector unit being coupled by a rigid structure
- A61B6/4441—Constructional features of apparatus for radiation diagnosis related to the mounting of source units and detector units the source unit and the detector unit being coupled by a rigid structure the rigid structure being a C-arm or U-arm
-
- 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
- A61B6/4208—Arrangements for detecting radiation specially adapted for radiation diagnosis characterised by using a particular type of detector
- A61B6/4258—Arrangements for detecting radiation specially adapted for radiation diagnosis characterised by using a particular type of detector for detecting non x-ray radiation, e.g. gamma radiation
-
- 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
- A61B6/44—Constructional features of apparatus for radiation diagnosis
- A61B6/4488—Means for cooling
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)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA334,274A CA1076268A (en) | 1975-11-25 | 1979-08-22 | Method and apparatus for computerized tomography |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US63516575A | 1975-11-25 | 1975-11-25 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1071773A true CA1071773A (en) | 1980-02-12 |
Family
ID=24546712
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA266,564A Expired CA1071773A (en) | 1975-11-25 | 1976-11-25 | Method and apparatus for computerized tomography |
Country Status (10)
| Country | Link |
|---|---|
| JP (1) | JPS5279681A (it) |
| BE (1) | BE848715A (it) |
| CA (1) | CA1071773A (it) |
| DE (1) | DE2653465A1 (it) |
| FR (1) | FR2333253A1 (it) |
| GB (2) | GB1571489A (it) |
| IL (1) | IL50969A (it) |
| IT (1) | IT1069995B (it) |
| NL (1) | NL7612959A (it) |
| SE (1) | SE7613009L (it) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4433380A (en) * | 1975-11-25 | 1984-02-21 | Philips Medical Systems, Inc. | Tomographic scanner |
| DE2648132A1 (de) * | 1976-10-23 | 1978-04-27 | Philips Patentverwaltung | Verfahren und anordnung zur verminderung des einflusses von detektorfehlern bei roentgen-scannern |
| DE2723401A1 (de) * | 1977-05-24 | 1978-12-07 | Siemens Ag | Schichtgeraet zur herstellung von transversalschichtbildern |
| DE3010230A1 (de) * | 1980-03-17 | 1981-09-24 | Siemens AG, 1000 Berlin und 8000 München | Stahlendiagnostikeinrichtung |
| AU7986682A (en) * | 1981-02-12 | 1982-08-19 | New York University | Apparatus for stereotactic surgery |
| FR2514247A1 (fr) * | 1981-10-14 | 1983-04-15 | Selectrem Etu Applic Electro M | Tomographe bidirectionnel |
| DE10211016A1 (de) * | 2002-03-13 | 2003-09-25 | Philips Intellectual Property | Röntgengerät mit lageveränderlichem Röntgendetektor |
| KR101266893B1 (ko) | 2009-06-25 | 2013-05-24 | 가부시끼가이샤 요시다세이사쿠쇼 | Ｘ선 촬영장치 |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1471531A (en) * | 1973-04-25 | 1977-04-27 | Emi Ltd | Radiography |
| GB1478123A (en) * | 1973-08-18 | 1977-06-29 | Emi Ltd | Tomography |
| JPS50109783A (it) * | 1974-01-31 | 1975-08-29 | ||
| DE2537333C3 (de) * | 1975-08-21 | 1982-10-28 | Siemens AG, 1000 Berlin und 8000 München | Verfahren zum Herstellen eines Körperschnittbildes aus der Absorptionsverteilung ionisierender Strahlen nach dem Faltungsverfahren und Einrichtung zur Durchführung des Verfahrens |
-
1976
- 1976-11-22 SE SE7613009A patent/SE7613009L/xx unknown
- 1976-11-22 NL NL7612959A patent/NL7612959A/xx not_active Application Discontinuation
- 1976-11-22 IT IT52297/76A patent/IT1069995B/it active
- 1976-11-23 IL IL50969A patent/IL50969A/xx unknown
- 1976-11-23 GB GB48789/76A patent/GB1571489A/en not_active Expired
- 1976-11-23 GB GB27100/79A patent/GB1571490A/en not_active Expired
- 1976-11-24 BE BE172672A patent/BE848715A/xx unknown
- 1976-11-25 DE DE19762653465 patent/DE2653465A1/de not_active Withdrawn
- 1976-11-25 JP JP51140814A patent/JPS5279681A/ja active Pending
- 1976-11-25 CA CA266,564A patent/CA1071773A/en not_active Expired
- 1976-11-25 FR FR7635546A patent/FR2333253A1/fr active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| DE2653465A1 (de) | 1977-06-08 |
| NL7612959A (nl) | 1977-05-27 |
| GB1571490A (en) | 1980-07-16 |
| BE848715A (fr) | 1977-05-24 |
| IT1069995B (it) | 1985-03-25 |
| FR2333253A1 (fr) | 1977-06-24 |
| IL50969A (en) | 1979-10-31 |
| SE7613009L (sv) | 1977-05-26 |
| JPS5279681A (en) | 1977-07-04 |
| IL50969A0 (en) | 1977-01-31 |
| GB1571489A (en) | 1980-07-16 |
| FR2333253B1 (it) | 1982-05-21 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKEX | Expiry |