IL99999A - Computed tomography with a snail scan and a follow-up source of X-rays - Google Patents
Computed tomography with a snail scan and a follow-up source of X-raysInfo
- Publication number
- IL99999A IL99999A IL9999991A IL9999991A IL99999A IL 99999 A IL99999 A IL 99999A IL 9999991 A IL9999991 A IL 9999991A IL 9999991 A IL9999991 A IL 9999991A IL 99999 A IL99999 A IL 99999A
- Authority
- IL
- Israel
- Prior art keywords
- collimator
- translation axis
- gantry
- distance
- ray
- Prior art date
Links
- 238000002591 computed tomography Methods 0.000 title description 16
- 238000013519 translation Methods 0.000 claims description 61
- 238000000034 method Methods 0.000 claims description 42
- 238000010408 sweeping Methods 0.000 claims description 5
- 238000006073 displacement reaction Methods 0.000 description 21
- 230000033001 locomotion Effects 0.000 description 19
- 238000005286 illumination Methods 0.000 description 8
- 238000003384 imaging method Methods 0.000 description 6
- 238000013459 approach Methods 0.000 description 5
- 230000002093 peripheral effect Effects 0.000 description 5
- 230000005855 radiation Effects 0.000 description 4
- 230000008569 process Effects 0.000 description 3
- 230000001133 acceleration Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 2
- 238000010894 electron beam technology Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 230000035945 sensitivity Effects 0.000 description 2
- 238000012935 Averaging Methods 0.000 description 1
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 1
- 230000002238 attenuated effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000013170 computed tomography imaging Methods 0.000 description 1
- 238000004590 computer program Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910052750 molybdenum Inorganic materials 0.000 description 1
- 239000011733 molybdenum Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 238000009416 shuttering Methods 0.000 description 1
- 230000004304 visual acuity Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21K—TECHNIQUES FOR HANDLING PARTICLES OR IONISING RADIATION NOT OTHERWISE PROVIDED FOR; IRRADIATION DEVICES; GAMMA RAY OR X-RAY MICROSCOPES
- G21K5/00—Irradiation devices
- G21K5/10—Irradiation devices with provision for relative movement of beam source and object to be irradiated
-
- 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
- A61B6/027—Arrangements for diagnosis sequentially in different planes; Stereoscopic radiation diagnosis characterised by the use of a particular data acquisition trajectory, e.g. helical or spiral
-
- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21K—TECHNIQUES FOR HANDLING PARTICLES OR IONISING RADIATION NOT OTHERWISE PROVIDED FOR; IRRADIATION DEVICES; GAMMA RAY OR X-RAY MICROSCOPES
- G21K1/00—Arrangements for handling particles or ionising radiation, e.g. focusing or moderating
- G21K1/02—Arrangements for handling particles or ionising radiation, e.g. focusing or moderating using diaphragms, collimators
- G21K1/025—Arrangements for handling particles or ionising radiation, e.g. focusing or moderating using diaphragms, collimators using multiple collimators, e.g. Bucky screens; other devices for eliminating undesired or dispersed radiation
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- High Energy & Nuclear Physics (AREA)
- General Engineering & Computer Science (AREA)
- Medical Informatics (AREA)
- Radiology & Medical Imaging (AREA)
- Surgery (AREA)
- Pathology (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Molecular Biology (AREA)
- Optics & Photonics (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Biophysics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Apparatus For Radiation Diagnosis (AREA)
- Analysing Materials By The Use Of Radiation (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US07/615,514 US5090037A (en) | 1990-11-19 | 1990-11-19 | Helical scanning computed tomography with tracking x-ray source |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| IL99999A0 IL99999A0 (en) | 1992-08-18 |
| IL99999A true IL99999A (en) | 1994-11-28 |
Family
ID=24465723
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| IL9999991A IL99999A (en) | 1990-11-19 | 1991-11-07 | Computed tomography with a snail scan and a follow-up source of X-rays |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US5090037A (fr) |
| EP (1) | EP0487245A1 (fr) |
| JP (1) | JP2509031B2 (fr) |
| CN (1) | CN1061524A (fr) |
| CA (1) | CA2048741A1 (fr) |
| IL (1) | IL99999A (fr) |
Families Citing this family (34)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5485493A (en) * | 1988-10-20 | 1996-01-16 | Picker International, Inc. | Multiple detector ring spiral scanner with relatively adjustable helical paths |
| JPH0787835B2 (ja) * | 1990-06-27 | 1995-09-27 | 株式会社東芝 | Ｘ線断層撮影装置 |
| IL98945A0 (en) * | 1991-07-24 | 1992-07-15 | Elscint Ltd | Multiple slice ct scanner |
| US5224136A (en) * | 1992-06-30 | 1993-06-29 | General Electric Company | Helical scanning computed tomography apparatus with constrained tracking of the x-ray source |
| US5386446A (en) * | 1992-07-06 | 1995-01-31 | Kabushiki Kaisha Toshiba | Positional adjustment of resolution in radiation CT scanner |
| JP2620467B2 (ja) * | 1992-07-16 | 1997-06-11 | 株式会社島津製作所 | Ｘ線ｃｔ装置 |
| EP0587334B1 (fr) * | 1992-09-09 | 1999-06-30 | Picker International, Inc. | Procédé d'imagerie et appareil associé |
| US5463668A (en) * | 1993-09-14 | 1995-10-31 | Kabushiki Kaisha Toshiba | X-ray diagnosis apparatus |
| DE4442854C1 (de) * | 1994-12-01 | 1996-02-01 | Siemens Ag | Computertomograph |
| US5515409A (en) * | 1994-12-22 | 1996-05-07 | General Electric Company | Helical interpolative algorithm for image reconstruction in a CT system |
| US5491735A (en) * | 1994-12-22 | 1996-02-13 | General Electric Company | Image reconstruction apparatus and method for helical scanning |
| JP3527381B2 (ja) * | 1997-02-28 | 2004-05-17 | 株式会社島津製作所 | Ｘ線ｃｔ装置 |
| US6173039B1 (en) | 1998-08-25 | 2001-01-09 | General Electric Company | Variable aperture z-axis tracking collimator for computed tomograph system |
| US6097784A (en) * | 1998-09-30 | 2000-08-01 | Picker International, Inc. | 3D image reconstruction for helical partial cone beam data |
| US6104775A (en) * | 1998-10-29 | 2000-08-15 | Picker International, Inc. | 3D image reconstruction for helical partial cone beam scanners using wedge beam transform |
| US6327331B1 (en) * | 1999-12-28 | 2001-12-04 | Ge Medical Systems Global Technology Company, Llc | Method and apparatus for analyzing CT z-axis beam positioning |
| JP4519310B2 (ja) * | 2000-12-14 | 2010-08-04 | Ｇｅヘルスケア・ジャパン株式会社 | Ｘ線ｃｔ装置 |
| JP3947372B2 (ja) * | 2001-07-25 | 2007-07-18 | ジーイー・メディカル・システムズ・グローバル・テクノロジー・カンパニー・エルエルシー | Ｘ線ｃｔシステムにおけるアパーチャの位置調整機構およびガントリ装置ならびにその制御方法 |
| US6907103B2 (en) | 2002-06-19 | 2005-06-14 | Agilent Technologies, Inc. | Capturing images of moving objects with a moving illumination point source |
| US6977984B2 (en) * | 2003-10-07 | 2005-12-20 | Ge Medical Systems Global Technology Company, Llc | Methods and apparatus for dynamical helical scanned image production |
| JP4300126B2 (ja) * | 2004-01-20 | 2009-07-22 | ジーイー・メディカル・システムズ・グローバル・テクノロジー・カンパニー・エルエルシー | Ｘ線ｃｔ装置および撮像方法 |
| US20060020200A1 (en) * | 2004-07-08 | 2006-01-26 | Medow Joshua E | Artifact-free CT angiogram |
| GB2424163A (en) * | 2005-03-10 | 2006-09-13 | Elekta Ab | Radiotherapeutic apparatus utilising helical motion of the source relative to the patient |
| US7532702B2 (en) * | 2005-11-23 | 2009-05-12 | General Electric Company | Method and system for performing CT image reconstruction with motion artifact correction |
| JP2007236662A (ja) * | 2006-03-09 | 2007-09-20 | Ge Medical Systems Global Technology Co Llc | Ｘ線ｃｔ装置およびそのｘ線ｃｔ画像再構成方法、ｘ線ｃｔ画像撮影方法。 |
| JP5597394B2 (ja) * | 2006-09-25 | 2014-10-01 | コーニンクレッカ フィリップス エヌ ヴェ | 回転ｘ線撮像における完全軌道に対する対象物の移動 |
| CN103385729A (zh) * | 2012-05-07 | 2013-11-13 | 上海联影医疗科技有限公司 | 一种ct定位像的扫描方法 |
| ES2935893T3 (es) * | 2012-09-07 | 2023-03-13 | Trophy | Aparato para la obtención parcial de imágenes por TC |
| EP2920791B1 (fr) * | 2012-11-16 | 2023-12-27 | NeuroLogica Corporation | Collimateur rotatif multifentes |
| CN103839603B (zh) * | 2012-11-27 | 2017-12-22 | Ge医疗系统环球技术有限公司 | Ct准直仪和包含该ct准直仪的ct系统 |
| CN104205240B (zh) * | 2013-02-28 | 2016-08-24 | 武汉数码刀医疗有限公司 | 一种可变换射野尺寸的准直器组合及其放射装置 |
| US11628312B2 (en) | 2017-11-06 | 2023-04-18 | The Research Foundation For The State University Of New York | System and method for dual-use computed tomography for imaging and radiation therapy |
| CN114098787A (zh) * | 2021-11-04 | 2022-03-01 | 明峰医疗系统股份有限公司 | 具有焦点追踪功能的准直器 |
| CN114305478A (zh) * | 2021-12-22 | 2022-04-12 | 明峰医疗系统股份有限公司 | 一种准直器、ct设备及校准方法和制备方法 |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4277685A (en) * | 1978-06-12 | 1981-07-07 | Ohio-Nuclear, Inc. | Adjustable collimator |
| DE3126643A1 (de) * | 1981-07-06 | 1983-01-20 | Siemens AG, 1000 Berlin und 8000 München | "strahlendiagnostikgeraet" |
| DE3136806A1 (de) * | 1981-09-16 | 1983-03-31 | Siemens AG, 1000 Berlin und 8000 München | Roentgenuntersuchungsgeraet |
| JPS59111738A (ja) * | 1982-12-16 | 1984-06-28 | 株式会社東芝 | Ｘ線断層撮影装置 |
| US4972458A (en) * | 1986-04-14 | 1990-11-20 | The University Of Rochester | Scanning equalization radiography |
| US4789929A (en) * | 1987-05-14 | 1988-12-06 | Hitachi Medical Corporation | CT system for spirally scanning subject on a movable bed synchronized to X-ray tube revolution |
| US5233518A (en) * | 1989-11-13 | 1993-08-03 | General Electric Company | Extrapolative reconstruction method for helical scanning |
| US4991189A (en) * | 1990-04-16 | 1991-02-05 | General Electric Company | Collimation apparatus for x-ray beam correction |
| JPH0454941A (ja) * | 1990-06-26 | 1992-02-21 | Shimadzu Corp | Ｘ線ｃｔ装置 |
-
1990
- 1990-11-19 US US07/615,514 patent/US5090037A/en not_active Expired - Lifetime
-
1991
- 1991-08-08 CA CA002048741A patent/CA2048741A1/fr not_active Abandoned
- 1991-11-07 IL IL9999991A patent/IL99999A/en not_active IP Right Cessation
- 1991-11-13 EP EP91310458A patent/EP0487245A1/fr not_active Withdrawn
- 1991-11-13 JP JP3323973A patent/JP2509031B2/ja not_active Expired - Lifetime
- 1991-11-19 CN CN91110797.5A patent/CN1061524A/zh active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| EP0487245A1 (fr) | 1992-05-27 |
| US5090037A (en) | 1992-02-18 |
| JP2509031B2 (ja) | 1996-06-19 |
| IL99999A0 (en) | 1992-08-18 |
| JPH04285539A (ja) | 1992-10-09 |
| CN1061524A (zh) | 1992-06-03 |
| CA2048741A1 (fr) | 1992-05-20 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| KB | Patent renewed | ||
| MM9K | Patent not in force due to non-payment of renewal fees |