DE2804157A1 - Verfahren und vorrichtung fuer die tomographie - Google Patents
Verfahren und vorrichtung fuer die tomographieInfo
- Publication number
- DE2804157A1 DE2804157A1 DE19782804157 DE2804157A DE2804157A1 DE 2804157 A1 DE2804157 A1 DE 2804157A1 DE 19782804157 DE19782804157 DE 19782804157 DE 2804157 A DE2804157 A DE 2804157A DE 2804157 A1 DE2804157 A1 DE 2804157A1
- Authority
- DE
- Germany
- Prior art keywords
- projection
- unit
- fourier
- layer
- projection data
- 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
- 238000000034 method Methods 0.000 title claims description 22
- 238000003325 tomography Methods 0.000 title claims description 8
- 230000005855 radiation Effects 0.000 claims description 56
- 230000006870 function Effects 0.000 claims description 45
- 230000009466 transformation Effects 0.000 claims description 35
- 238000010521 absorption reaction Methods 0.000 claims description 21
- 238000004364 calculation method Methods 0.000 claims description 19
- 230000014509 gene expression Effects 0.000 claims description 12
- 239000011159 matrix material Substances 0.000 claims description 7
- 238000007781 pre-processing Methods 0.000 claims description 6
- 230000007423 decrease Effects 0.000 claims 1
- 238000005259 measurement Methods 0.000 description 8
- 238000010276 construction Methods 0.000 description 7
- 230000008859 change Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 230000008901 benefit Effects 0.000 description 4
- 230000000149 penetrating effect Effects 0.000 description 4
- 230000035515 penetration Effects 0.000 description 3
- 238000000844 transformation Methods 0.000 description 3
- 230000007246 mechanism Effects 0.000 description 2
- 230000003340 mental effect Effects 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 238000005070 sampling Methods 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 208000019901 Anxiety disease Diseases 0.000 description 1
- 206010013082 Discomfort Diseases 0.000 description 1
- 230000036506 anxiety Effects 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000002238 attenuated effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000009795 derivation Methods 0.000 description 1
- 238000003745 diagnosis Methods 0.000 description 1
- 230000005251 gamma ray Effects 0.000 description 1
- 238000003707 image sharpening Methods 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 210000004072 lung Anatomy 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000006467 substitution reaction 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]
-
- 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
- G06T11/006—Inverse problem, transformation from projection-space into object-space, e.g. transform methods, back-projection, algebraic methods
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T2211/00—Image generation
- G06T2211/40—Computed tomography
- G06T2211/421—Filtered back projection [FBP]
-
- 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A90/00—Technologies having an indirect contribution to adaptation to climate change
- Y02A90/10—Information and communication technologies [ICT] supporting adaptation to climate change, e.g. for weather forecasting or climate simulation
-
- 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
- Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Theoretical Computer Science (AREA)
- Physics & Mathematics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Medical Informatics (AREA)
- General Physics & Mathematics (AREA)
- Heart & Thoracic Surgery (AREA)
- General Health & Medical Sciences (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Optics & Photonics (AREA)
- Pathology (AREA)
- Radiology & Medical Imaging (AREA)
- Biomedical Technology (AREA)
- Biophysics (AREA)
- Molecular Biology (AREA)
- Surgery (AREA)
- Animal Behavior & Ethology (AREA)
- High Energy & Nuclear Physics (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Algebra (AREA)
- Pulmonology (AREA)
- Mathematical Analysis (AREA)
- Mathematical Optimization (AREA)
- Mathematical Physics (AREA)
- Pure & Applied Mathematics (AREA)
- Apparatus For Radiation Diagnosis (AREA)
- Analysing Materials By The Use Of Radiation (AREA)
- Complex Calculations (AREA)
- Medical Treatment And Welfare Office Work (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP870377A JPS5394787A (en) | 1977-01-31 | 1977-01-31 | Tomographic diagnostic equipment by radiation |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| DE2804157A1 true DE2804157A1 (de) | 1978-08-03 |
| DE2804157C2 DE2804157C2 (US07223432-20070529-C00017.png) | 1987-05-07 |
Family
ID=11700286
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE19782804157 Granted DE2804157A1 (de) | 1977-01-31 | 1978-01-31 | Verfahren und vorrichtung fuer die tomographie |
Country Status (5)
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3204852A1 (de) * | 1981-02-12 | 1982-08-19 | Tokyo Shibaura Denki K.K., Kawasaki, Kanagawa | Computertomographie-verfahren und -vorrichtung |
| WO1984000880A1 (en) * | 1982-09-03 | 1984-03-15 | Medicor Muevek | Convolver equipment |
Families Citing this family (24)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5599240A (en) * | 1979-01-22 | 1980-07-29 | Tokyo Shibaura Electric Co | Ct scanner |
| US4418387A (en) * | 1979-09-18 | 1983-11-29 | The President Of Tokyo Institute Of Technology | Method of reconstructing a computed tomographic image from a single X-ray projection |
| JPS5643542A (en) * | 1979-09-18 | 1981-04-22 | Tokyo Inst Of Technol | Method and apparatus for regeneration of tomographic image |
| US4422146A (en) * | 1979-11-22 | 1983-12-20 | The President Of Tokyo Institute Of Technology | Reconstruction method of a computed tomographic image from a few X-ray projections |
| US4333145A (en) * | 1979-11-29 | 1982-06-01 | Technicare Corporation | Method of high resolution partial area scan involving concentrated high density material outside the partial area |
| JPS56136529A (en) * | 1980-03-28 | 1981-10-24 | Tokyo Shibaura Electric Co | Apparatus for reconstituting image |
| US4504438A (en) * | 1981-12-07 | 1985-03-12 | Levy Richard H | Method and apparatus for determining the density characteristics of underground earth formations |
| US4616318A (en) * | 1983-06-07 | 1986-10-07 | Elscint, Inc. | System for reprojecting images using transform techniques |
| JPS6140678A (ja) * | 1984-08-01 | 1986-02-26 | Hitachi Medical Corp | 画像処理装置 |
| US5068786A (en) * | 1984-11-08 | 1991-11-26 | Elscint Ltd. | Method for controlling radio frequency excitation and gradient pulse characteristics in a magnetic resonance imaging system |
| US4845613A (en) * | 1984-11-08 | 1989-07-04 | Elscint Ltd. | Radio frequency excitation and gradient pulse controller having plurality of channels for transmitting instruction and Rf pulse pattern data to a magnetic resonance imaging system |
| US4674045A (en) * | 1984-12-31 | 1987-06-16 | Picker International Inc. | Filter for data processing |
| GB2170980B (en) * | 1985-02-07 | 1988-05-25 | Steve Webb | Ct scanner and detector therefor |
| US5113865A (en) * | 1988-04-06 | 1992-05-19 | Hitachi Medical Corporation | Method and apparatus for correction of phase distortion in MR imaging system |
| US5079697A (en) * | 1989-05-01 | 1992-01-07 | The General Hospital Corporation | Distortion reduction in projection imaging by manipulation of fourier transform of projection sample |
| US5210688A (en) * | 1990-05-21 | 1993-05-11 | General Motors Corporation | Sinography method and apparatus |
| US5404293A (en) * | 1991-06-11 | 1995-04-04 | The University Of Utah | Cone beam reconstruction using helical data collection paths |
| US5170439A (en) * | 1991-06-11 | 1992-12-08 | Picker International, Inc. | Cone beam reconstruction using combined circle and line orbits |
| US5778038A (en) * | 1996-06-06 | 1998-07-07 | Yeda Research And Development Co., Ltd. | Computerized tomography scanner and method of performing computerized tomography |
| US6289235B1 (en) * | 1998-03-05 | 2001-09-11 | Wake Forest University | Method and system for creating three-dimensional images using tomosynthetic computed tomography |
| US7315636B2 (en) * | 2003-09-18 | 2008-01-01 | Accuray, Inc. | Generation of reconstructed images |
| US7215734B2 (en) * | 2004-06-30 | 2007-05-08 | General Electric Company | Method and system for three-dimensional reconstruction of images |
| US8938104B2 (en) * | 2008-08-29 | 2015-01-20 | Varian Medical Systems International Ag | Systems and methods for adaptive filtering |
| CN103797517B (zh) * | 2011-09-12 | 2018-06-12 | 皇家飞利浦有限公司 | 针对有限角度断层摄影中的滤波反投影的图像重建的方法、计算设备、装置和可读介质 |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2427418A1 (de) * | 1973-06-05 | 1975-01-09 | Emi Ltd | Geraet zur untersuchung eines koerpers mittels durchdringender strahlung |
| DE2503980A1 (de) * | 1974-01-31 | 1975-08-07 | Emi Ltd | Verfahren und geraet zur untersuchung eines koerpers mittels durchdringender strahlung |
Family Cites Families (7)
| 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 |
| US3878373A (en) * | 1971-06-30 | 1975-04-15 | Alvin Blum | Radiation detection device and a radiation detection method |
| GB1493593A (en) * | 1974-01-31 | 1977-11-30 | Emi Ltd | Radiography |
| US3983399A (en) * | 1975-03-18 | 1976-09-28 | Picker Corporation | Tomography system having axial scanning |
| GB1546076A (en) * | 1975-06-10 | 1979-05-16 | Emi Ltd | Radiography |
| US4052620A (en) * | 1975-11-28 | 1977-10-04 | Picker Corporation | Method and apparatus for improved radiation detection in radiation scanning systems |
| GB1571800A (en) * | 1976-01-15 | 1980-07-16 | Emi Ltd | Radiography |
-
1977
- 1977-01-31 JP JP870377A patent/JPS5394787A/ja active Granted
-
1978
- 1978-01-30 GB GB3616/78A patent/GB1594561A/en not_active Expired
- 1978-01-31 US US05/874,065 patent/US4205375A/en not_active Expired - Lifetime
- 1978-01-31 FR FR7802692A patent/FR2379118A1/fr active Granted
- 1978-01-31 DE DE19782804157 patent/DE2804157A1/de active Granted
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2427418A1 (de) * | 1973-06-05 | 1975-01-09 | Emi Ltd | Geraet zur untersuchung eines koerpers mittels durchdringender strahlung |
| DE2503980A1 (de) * | 1974-01-31 | 1975-08-07 | Emi Ltd | Verfahren und geraet zur untersuchung eines koerpers mittels durchdringender strahlung |
Non-Patent Citations (1)
| Title |
|---|
| Proc.IEEE Vol.65, Nr.1 v.1.1.77, S.89-107 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3204852A1 (de) * | 1981-02-12 | 1982-08-19 | Tokyo Shibaura Denki K.K., Kawasaki, Kanagawa | Computertomographie-verfahren und -vorrichtung |
| WO1984000880A1 (en) * | 1982-09-03 | 1984-03-15 | Medicor Muevek | Convolver equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| FR2379118B1 (US07223432-20070529-C00017.png) | 1980-08-29 |
| GB1594561A (en) | 1981-07-30 |
| US4205375A (en) | 1980-05-27 |
| DE2804157C2 (US07223432-20070529-C00017.png) | 1987-05-07 |
| JPS5394787A (en) | 1978-08-19 |
| FR2379118A1 (fr) | 1978-08-25 |
| JPS558166B2 (US07223432-20070529-C00017.png) | 1980-03-03 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| OAP | Request for examination filed | ||
| OD | Request for examination | ||
| 8128 | New person/name/address of the agent |
Representative=s name: HENKEL, G., DR.PHIL. FEILER, L., DR.RER.NAT. HAENZ |
|
| 8127 | New person/name/address of the applicant |
Owner name: KABUSHIKI KAISHA TOSHIBA, KAWASAKI, KANAGAWA, JP |
|
| D2 | Grant after examination | ||
| 8364 | No opposition during term of opposition | ||
| 8339 | Ceased/non-payment of the annual fee |