JP2003024322A - コンピュータ断層チャンネルの連結アーチファクトを補償するための方法及び装置 - Google Patents
コンピュータ断層チャンネルの連結アーチファクトを補償するための方法及び装置Info
- Publication number
- JP2003024322A JP2003024322A JP2002173588A JP2002173588A JP2003024322A JP 2003024322 A JP2003024322 A JP 2003024322A JP 2002173588 A JP2002173588 A JP 2002173588A JP 2002173588 A JP2002173588 A JP 2002173588A JP 2003024322 A JP2003024322 A JP 2003024322A
- Authority
- JP
- Japan
- Prior art keywords
- isochannel
- projection data
- imaging system
- subject
- detector array
- 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.)
- Withdrawn
Links
- 238000000034 method Methods 0.000 title claims abstract description 34
- 238000013170 computed tomography imaging Methods 0.000 claims abstract description 37
- 238000003384 imaging method Methods 0.000 claims description 78
- 238000002591 computed tomography Methods 0.000 claims description 40
- 238000005070 sampling Methods 0.000 claims description 20
- 238000001914 filtration Methods 0.000 claims description 10
- 230000008569 process Effects 0.000 claims description 8
- 230000008878 coupling Effects 0.000 claims description 6
- 238000010168 coupling process Methods 0.000 claims description 6
- 238000005859 coupling reaction Methods 0.000 claims description 6
- 125000005647 linker group Chemical group 0.000 claims 1
- 238000001514 detection method Methods 0.000 abstract description 2
- 230000006866 deterioration Effects 0.000 abstract 1
- 239000002131 composite material Substances 0.000 description 6
- 238000005094 computer simulation Methods 0.000 description 6
- 238000012360 testing method Methods 0.000 description 5
- 230000007246 mechanism Effects 0.000 description 4
- 238000004088 simulation Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- 244000309464 bull Species 0.000 description 2
- 230000003750 conditioning effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 102100033041 Carbonic anhydrase 13 Human genes 0.000 description 1
- 101000867860 Homo sapiens Carbonic anhydrase 13 Proteins 0.000 description 1
- 101100400378 Mus musculus Marveld2 gene Proteins 0.000 description 1
- 230000000747 cardiac effect Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 238000013480 data collection Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 238000012552 review Methods 0.000 description 1
- 238000012546 transfer 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
- A61B6/40—Arrangements for generating radiation specially adapted for radiation diagnosis
- A61B6/4021—Arrangements for generating radiation specially adapted for radiation diagnosis involving movement of the focal spot
- A61B6/4028—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
-
- 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
- A61B6/42—Arrangements for detecting radiation specially adapted for radiation diagnosis
- A61B6/4266—Arrangements for detecting radiation specially adapted for radiation diagnosis characterised by using a plurality of detector units
-
- 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
- A61B6/52—Devices using data or image processing specially adapted for radiation diagnosis
- A61B6/5205—Devices using data or image processing specially adapted for radiation diagnosis involving processing of raw data to produce diagnostic data
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Medical Informatics (AREA)
- Heart & Thoracic Surgery (AREA)
- Molecular Biology (AREA)
- Biophysics (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Optics & Photonics (AREA)
- Pathology (AREA)
- Radiology & Medical Imaging (AREA)
- Biomedical Technology (AREA)
- Physics & Mathematics (AREA)
- High Energy & Nuclear Physics (AREA)
- Surgery (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Pulmonology (AREA)
- Theoretical Computer Science (AREA)
- Computer Vision & Pattern Recognition (AREA)
- Apparatus For Radiation Diagnosis (AREA)
- Analysing Materials By The Use Of Radiation (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US09/882,770 US6535572B2 (en) | 2001-06-15 | 2001-06-15 | Methods and apparatus for compensating computed tomographic channel ganging artifacts |
| US09/882770 | 2001-06-15 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2003024322A true JP2003024322A (ja) | 2003-01-28 |
| JP2003024322A5 JP2003024322A5 (enExample) | 2005-10-13 |
Family
ID=25381291
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2002173588A Withdrawn JP2003024322A (ja) | 2001-06-15 | 2002-06-14 | コンピュータ断層チャンネルの連結アーチファクトを補償するための方法及び装置 |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US6535572B2 (enExample) |
| EP (1) | EP1266620A3 (enExample) |
| JP (1) | JP2003024322A (enExample) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7583778B2 (en) | 2003-07-24 | 2009-09-01 | Kabushiki Kaisha Toshiba | X-ray CT apparatus and X-ray CT backprojection operating method |
| JP2011139816A (ja) * | 2010-01-08 | 2011-07-21 | Hitachi Medical Corp | 画像再構成装置及びｘ線ｃｔ装置 |
| JP2019042281A (ja) * | 2017-09-05 | 2019-03-22 | キヤノンメディカルシステムズ株式会社 | Ｘ線コンピュータ断層撮影装置 |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050201605A1 (en) * | 2004-03-11 | 2005-09-15 | Jianying Li | Methods and apparatus for CT smoothing to reduce artifacts |
| US8260019B2 (en) * | 2007-08-17 | 2012-09-04 | General Electric Company | Methods and apparatus for data communication across a slip ring |
| DE102007042335A1 (de) * | 2007-09-06 | 2009-03-12 | Siemens Ag | Detektoranordnung sowie Verfahren zur Verarbeitung von Signalen |
| JP5159543B2 (ja) * | 2008-09-30 | 2013-03-06 | 株式会社東芝 | Ｘ線ｃｔ装置 |
| EP2434954B1 (en) * | 2009-05-28 | 2016-06-08 | Koninklijke Philips N.V. | Multi-detector array imaging system |
| JP5963217B2 (ja) * | 2012-06-20 | 2016-08-03 | 株式会社日立製作所 | Ｘ線ｃｔ装置 |
| US9488730B2 (en) * | 2013-07-16 | 2016-11-08 | Qualcomm Incorporated | Receiver alias rejection improvement by adding an offset |
| CN111272786B (zh) * | 2020-03-30 | 2025-01-24 | 苏州碧诗恩智能科技有限公司 | Ct扫描成像系统 |
| CN113905138B (zh) * | 2021-08-10 | 2024-08-23 | 上海联影医疗科技股份有限公司 | 扫描数据的传输方法、装置、计算机设备和存储介质 |
| CN118216940B (zh) * | 2024-03-20 | 2025-04-18 | 清华大学 | 分布式射线源ct成像系统及成像方法 |
Family Cites Families (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4361901A (en) | 1980-11-18 | 1982-11-30 | General Electric Company | Multiple voltage x-ray switching system |
| US5131021A (en) | 1991-06-21 | 1992-07-14 | General Electric Company | Computed tomography system with control and correction of fan beam position |
| KR100198515B1 (ko) * | 1994-02-03 | 1999-06-15 | 토비 에취. 쿠스머 | 주사이미지의 질을 개선하기 위한 x선 단층촬영시스템과 방법 |
| US5732118A (en) | 1996-12-02 | 1998-03-24 | General Electric Company | Methods and apparatus for image reconstruction in a multislice computed tomography system |
| US5974109A (en) | 1997-11-07 | 1999-10-26 | General Electric Company | Methods and apparatus for cell ganging in a multislice computed tomography system |
| US5907593A (en) | 1997-11-26 | 1999-05-25 | General Electric Company | Image reconstruction in a CT fluoroscopy system |
| US6327329B1 (en) * | 1998-08-25 | 2001-12-04 | General Electric Company | Methods and apparatus for monitoring detector image quality |
| US6198791B1 (en) | 1998-08-25 | 2001-03-06 | General Electric Company | Scalable multislice imaging system |
| US6246743B1 (en) | 1998-08-25 | 2001-06-12 | General Electric Company | Methods and apparatus for troubleshooting scaleable multislice imaging system |
| US6061419A (en) | 1998-08-25 | 2000-05-09 | General Electric Company | Methods and apparatus for noise compensation in an imaging system |
| US6075835A (en) | 1998-08-25 | 2000-06-13 | General Electric Company | Methods and apparatus for imaging system quality readiness check |
| US6081576A (en) | 1998-08-25 | 2000-06-27 | General Electric Company | Scalable data acquisition system |
| US6295331B1 (en) * | 1999-07-12 | 2001-09-25 | General Electric Company | Methods and apparatus for noise compensation in imaging systems |
| US6310938B1 (en) * | 1999-08-27 | 2001-10-30 | General Electric Company | Methods and apparatus for calibrating CT x-ray beam tracking loop |
| DE19956585A1 (de) * | 1999-11-25 | 2001-05-31 | Philips Corp Intellectual Pty | Computertomographie-Verfahren |
-
2001
- 2001-06-15 US US09/882,770 patent/US6535572B2/en not_active Expired - Lifetime
-
2002
- 2002-06-10 EP EP02254030A patent/EP1266620A3/en not_active Withdrawn
- 2002-06-14 JP JP2002173588A patent/JP2003024322A/ja not_active Withdrawn
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7583778B2 (en) | 2003-07-24 | 2009-09-01 | Kabushiki Kaisha Toshiba | X-ray CT apparatus and X-ray CT backprojection operating method |
| JP2011139816A (ja) * | 2010-01-08 | 2011-07-21 | Hitachi Medical Corp | 画像再構成装置及びｘ線ｃｔ装置 |
| JP2019042281A (ja) * | 2017-09-05 | 2019-03-22 | キヤノンメディカルシステムズ株式会社 | Ｘ線コンピュータ断層撮影装置 |
Also Published As
| Publication number | Publication date |
|---|---|
| US6535572B2 (en) | 2003-03-18 |
| EP1266620A2 (en) | 2002-12-18 |
| EP1266620A3 (en) | 2003-07-02 |
| US20030002617A1 (en) | 2003-01-02 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20050609 |
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| A621 | Written request for application examination |
Free format text: JAPANESE INTERMEDIATE CODE: A621 Effective date: 20050609 |
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| A761 | Written withdrawal of application |
Free format text: JAPANESE INTERMEDIATE CODE: A761 Effective date: 20060814 |