DE69810271D1 - Rechnergestützte abtast-tomographie mit veränderlicher stromstärke - Google Patents
Rechnergestützte abtast-tomographie mit veränderlicher stromstärkeInfo
- Publication number
- DE69810271D1 DE69810271D1 DE69810271T DE69810271T DE69810271D1 DE 69810271 D1 DE69810271 D1 DE 69810271D1 DE 69810271 T DE69810271 T DE 69810271T DE 69810271 T DE69810271 T DE 69810271T DE 69810271 D1 DE69810271 D1 DE 69810271D1
- Authority
- DE
- Germany
- Prior art keywords
- computer
- current amount
- variable current
- based scan
- scan tomography
- 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 - Fee Related
Links
- 238000003325 tomography Methods 0.000 title 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B6/00—Apparatus for radiation diagnosis, e.g. combined with radiation therapy equipment
- A61B6/54—Control of apparatus or devices for radiation diagnosis
- A61B6/542—Control of apparatus or devices for radiation diagnosis involving control of exposure
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B6/00—Apparatus for radiation diagnosis, e.g. combined with radiation therapy equipment
- A61B6/02—Devices for diagnosis sequentially in different planes; Stereoscopic radiation diagnosis
- A61B6/03—Computerised tomographs
- A61B6/032—Transmission computed tomography [CT]
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05G—X-RAY TECHNIQUE
- H05G1/00—X-ray apparatus involving X-ray tubes; Circuits therefor
- H05G1/08—Electrical details
- H05G1/26—Measuring, controlling or protecting
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05G—X-RAY TECHNIQUE
- H05G1/00—X-ray apparatus involving X-ray tubes; Circuits therefor
- H05G1/08—Electrical details
- H05G1/26—Measuring, controlling or protecting
- H05G1/30—Controlling
- H05G1/36—Temperature of anode; Brightness of image power
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B6/00—Apparatus for radiation diagnosis, e.g. combined with radiation therapy equipment
- A61B6/02—Devices for diagnosis sequentially in different planes; Stereoscopic radiation diagnosis
- A61B6/027—Devices for diagnosis sequentially in different planes; Stereoscopic radiation diagnosis characterised by the use of a particular data acquisition trajectory, e.g. helical or spiral
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IL12009797A IL120097A0 (en) | 1997-01-29 | 1997-01-29 | Variable current CT scanning |
PCT/IL1998/000038 WO1998033361A1 (en) | 1997-01-29 | 1998-01-26 | Variable current ct scanning |
Publications (2)
Publication Number | Publication Date |
---|---|
DE69810271D1 true DE69810271D1 (de) | 2003-01-30 |
DE69810271T2 DE69810271T2 (de) | 2003-08-28 |
Family
ID=11069741
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE69810271T Expired - Fee Related DE69810271T2 (de) | 1997-01-29 | 1998-01-26 | Rechnergestützte abtast-tomographie mit veränderlicher stromstärke |
Country Status (6)
Country | Link |
---|---|
US (1) | US6198789B1 (de) |
EP (1) | EP0956744B1 (de) |
JP (1) | JP2001509048A (de) |
DE (1) | DE69810271T2 (de) |
IL (1) | IL120097A0 (de) |
WO (1) | WO1998033361A1 (de) |
Families Citing this family (26)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3789728B2 (ja) * | 1999-08-10 | 2006-06-28 | ジーイー横河メディカルシステム株式会社 | プロジェクションデータ補正方法および装置並びに放射線断層撮像装置 |
US6373919B1 (en) | 1999-08-10 | 2002-04-16 | Ge Yokogawa Medical Systems, Limited | Projection data correction method and apparatus, and radiation tomographic imaging method and apparatus |
WO2001027357A1 (en) * | 1999-10-12 | 2001-04-19 | Semitool, Inc. | Method and apparatus for executing plural processes on a microelectronic workpiece at a single processing station |
JP4587594B2 (ja) * | 2001-04-12 | 2010-11-24 | 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装置およびその制御方法 |
US7280632B2 (en) * | 2001-08-16 | 2007-10-09 | University Of Central Florida Research Foundation, Inc. | Exact filtered back projection (FBP) algorithm for spiral computer tomography with variable pitch |
US6771733B2 (en) * | 2001-08-16 | 2004-08-03 | University Of Central Florida | Method of reconstructing images for spiral and non-spiral computer tomography |
US6574299B1 (en) | 2001-08-16 | 2003-06-03 | University Of Central Florida | Exact filtered back projection (FBP) algorithm for spiral computer tomography |
EP1427337B1 (de) * | 2001-09-05 | 2009-12-02 | Koninklijke Philips Electronics N.V. | Dosiskontrolle in ct-aufnahmen |
JP4309631B2 (ja) * | 2001-10-22 | 2009-08-05 | 株式会社東芝 | X線コンピュータトモグラフィ装置 |
JP3950782B2 (ja) * | 2002-05-22 | 2007-08-01 | 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 | 3次元逆投影方法およびx線ct装置 |
US6816567B2 (en) * | 2002-07-15 | 2004-11-09 | Ge Medical System Global Technology Company, Llc | System and method for acquiring x-ray data |
WO2004071301A1 (ja) * | 2003-02-14 | 2004-08-26 | Hitachi Medical Corporation | X線ct装置 |
JP4880587B2 (ja) | 2004-04-13 | 2012-02-22 | コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ | コンピュータ断層撮影のための動的線量制御 |
DE102005034159A1 (de) * | 2005-07-21 | 2007-02-01 | Siemens Ag | Patientenlagerungstisch und Computertomographiegerät aufweisend einen Patentenlagerungstisch |
CN101283262A (zh) * | 2005-10-06 | 2008-10-08 | 皇家飞利浦电子股份有限公司 | 用于csct的采集参数优化 |
DE602007010192D1 (de) * | 2006-01-26 | 2010-12-16 | Toshiba Kk | Röntgen-CT-Gerät, sowie Verfahren zur Phantomzuweisung |
JP4509971B2 (ja) * | 2006-06-09 | 2010-07-21 | 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 |
FR2905256B1 (fr) * | 2006-09-05 | 2008-11-21 | Gen Electric | Procede d'obtention d'une image de tomosynthese |
CN101467888B (zh) * | 2007-12-28 | 2013-03-27 | Ge医疗系统环球技术有限公司 | X射线ct装置和x射线管电流确定方法 |
JP5632141B2 (ja) * | 2009-07-01 | 2014-11-26 | 株式会社東芝 | X線ct装置 |
US8397149B2 (en) | 2010-06-11 | 2013-03-12 | Cisco Technology, Inc. | Methods for obtaining a set of path metrics and equalizer for a receiver for digital data |
JP6257948B2 (ja) * | 2012-08-07 | 2018-01-10 | 東芝メディカルシステムズ株式会社 | X線撮影システム |
CN104398266A (zh) | 2014-11-19 | 2015-03-11 | 沈阳东软医疗系统有限公司 | 一种扫描剂量的调制方法及装置 |
JP7065611B6 (ja) | 2014-11-20 | 2022-06-06 | コーニンクレッカ フィリップス エヌ ヴェ | フォトンカウンティング検出器のためのx線フラックスレデューサ |
JP6906905B2 (ja) * | 2016-06-29 | 2021-07-21 | キヤノンメディカルシステムズ株式会社 | X線診断装置 |
JP7098292B2 (ja) * | 2017-09-05 | 2022-07-11 | キヤノンメディカルシステムズ株式会社 | X線ct装置 |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4296329A (en) * | 1979-10-22 | 1981-10-20 | General Electric Company | Alignment device for computerized tomography phantoms |
US5228070A (en) * | 1988-10-20 | 1993-07-13 | Picker International, Inc. | Constant image quality CT scanner with variable radiation flux density |
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 |
JP2704084B2 (ja) * | 1992-05-01 | 1998-01-26 | 株式会社東芝 | X線ct装置 |
US5379333A (en) * | 1993-11-19 | 1995-01-03 | General Electric Company | Variable dose application by modulation of x-ray tube current during CT scanning |
US5450462A (en) | 1993-11-19 | 1995-09-12 | General Electric Company | Modulation of x-ray tube current during CT scanning with modulation limit |
US5400378A (en) * | 1993-11-19 | 1995-03-21 | General Electric Company | Dynamic dose control in multi-slice CT scan |
US5485494A (en) * | 1994-08-03 | 1996-01-16 | General Electric Company | Modulation of X-ray tube current during CT scanning |
US5696807A (en) | 1996-09-05 | 1997-12-09 | General Electric Company | Methods and apparatus for modulating x-ray tube current |
-
1997
- 1997-01-29 IL IL12009797A patent/IL120097A0/xx unknown
-
1998
- 1998-01-26 EP EP98900988A patent/EP0956744B1/de not_active Expired - Lifetime
- 1998-01-26 JP JP53178798A patent/JP2001509048A/ja not_active Ceased
- 1998-01-26 US US09/355,719 patent/US6198789B1/en not_active Expired - Fee Related
- 1998-01-26 WO PCT/IL1998/000038 patent/WO1998033361A1/en active IP Right Grant
- 1998-01-26 DE DE69810271T patent/DE69810271T2/de not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
JP2001509048A (ja) | 2001-07-10 |
US6198789B1 (en) | 2001-03-06 |
EP0956744A1 (de) | 1999-11-17 |
DE69810271T2 (de) | 2003-08-28 |
IL120097A0 (en) | 1997-04-15 |
EP0956744B1 (de) | 2002-12-18 |
WO1998033361A1 (en) | 1998-07-30 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition | ||
8339 | Ceased/non-payment of the annual fee |