IL98928A - מסנן יציב שניתן להפסיקו עבור טומוגרפיה ממוחשבת דו-קרנית - Google Patents
מסנן יציב שניתן להפסיקו עבור טומוגרפיה ממוחשבת דו-קרניתInfo
- Publication number
- IL98928A IL98928A IL9892891A IL9892891A IL98928A IL 98928 A IL98928 A IL 98928A IL 9892891 A IL9892891 A IL 9892891A IL 9892891 A IL9892891 A IL 9892891A IL 98928 A IL98928 A IL 98928A
- Authority
- IL
- Israel
- Prior art keywords
- filter
- output
- period
- during
- data acquisition
- Prior art date
Links
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
- A61B6/02—Devices for diagnosis sequentially in different planes; Stereoscopic radiation diagnosis
- A61B6/03—Computerised tomographs
- A61B6/032—Transmission computed tomography [CT]
-
- 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
- A61B6/40—Apparatus for radiation diagnosis, e.g. combined with radiation therapy equipment with arrangements for generating radiation specially adapted for radiation diagnosis
- A61B6/405—Source units specially adapted to modify characteristics of the beam during the data acquisition process
-
- 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
- A61B6/48—Diagnostic techniques
- A61B6/482—Diagnostic techniques involving multiple energy imaging
-
- 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
- A61B6/40—Apparatus for radiation diagnosis, e.g. combined with radiation therapy equipment with arrangements for generating radiation specially adapted for radiation diagnosis
- A61B6/4021—Apparatus for radiation diagnosis, e.g. combined with radiation therapy equipment with arrangements for generating radiation specially adapted for radiation diagnosis involving movement of the focal spot
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US07/562,766 US5218533A (en) | 1990-08-06 | 1990-08-06 | Stable interruptible filter for dual beam computed tomography |
Publications (2)
Publication Number | Publication Date |
---|---|
IL98928A0 IL98928A0 (en) | 1992-07-15 |
IL98928A true IL98928A (he) | 1994-06-24 |
Family
ID=24247683
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IL9892891A IL98928A (he) | 1990-08-06 | 1991-07-23 | מסנן יציב שניתן להפסיקו עבור טומוגרפיה ממוחשבת דו-קרנית |
Country Status (7)
Country | Link |
---|---|
US (1) | US5218533A (he) |
EP (1) | EP0473296B1 (he) |
JP (1) | JPH0790023B2 (he) |
CN (1) | CN1056506C (he) |
CA (1) | CA2042226A1 (he) |
DE (1) | DE69125668T2 (he) |
IL (1) | IL98928A (he) |
Families Citing this family (20)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5301108A (en) * | 1993-02-01 | 1994-04-05 | General Electric Company | Computed tomography system with z-axis correction |
WO1996042022A1 (en) * | 1993-03-31 | 1996-12-27 | Eg & G Astrophysics Research Corporation | Three-dimensional reconstruction based on a limited number of x-ray projections |
US5841829A (en) * | 1997-05-13 | 1998-11-24 | Analogic Corporation | Optimal channel filter for CT system with wobbling focal spot |
JP4550179B2 (ja) * | 1999-02-12 | 2010-09-22 | 株式会社東芝 | X線コンピュータ断層撮影装置 |
US6597352B1 (en) * | 1999-05-05 | 2003-07-22 | Nokia Corporation | Method and device for filtered sync detection |
EP1526808B1 (en) * | 2002-07-23 | 2013-01-09 | GE Medical Systems Global Technology Company LLC | Systems for detecting components of plaque |
US6999549B2 (en) * | 2002-11-27 | 2006-02-14 | Ge Medical Systems Global Technology, Llc | Method and apparatus for quantifying tissue fat content |
US7187748B2 (en) * | 2003-12-30 | 2007-03-06 | Ge Medical Systems Global Technology Company, Llc | Multidetector CT imaging method and apparatus with reducing radiation scattering |
US7453987B1 (en) * | 2004-03-04 | 2008-11-18 | Science Applications International Corporation | Method and system for high energy, low radiation power X-ray imaging of the contents of a target |
US7356118B2 (en) * | 2004-10-22 | 2008-04-08 | Scantech Holdings, Llc | Angled-beam detection system for container inspection |
JP4294610B2 (ja) * | 2005-04-14 | 2009-07-15 | 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 | 放射線ct装置、データ収集装置及びデータ収集方法 |
JP4299806B2 (ja) * | 2005-05-11 | 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 |
JP2009513220A (ja) * | 2005-10-28 | 2009-04-02 | 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 | 分光コンピュータ断層撮影の方法および装置 |
US7283609B2 (en) * | 2005-11-10 | 2007-10-16 | General Electric Company | CT detector photodiode having multiple charge storage devices |
US7789838B2 (en) * | 2006-06-02 | 2010-09-07 | Massachusetts Eye & Ear Infirmary | Audible range oculocometry for assessment of vestibular function |
US8515147B2 (en) * | 2006-12-15 | 2013-08-20 | Koninklijke Philips N.V. | Spectrally resolving X-ray imaging device |
FR2947658B1 (fr) * | 2009-07-03 | 2011-07-29 | Norbert Beyrard | Procede et dispositif d'imagerie a rayons x a traitement tridimentionnel |
US8314394B1 (en) | 2009-11-04 | 2012-11-20 | Science Applications International Corporation | System and method for three-dimensional imaging using scattering from annihilation coincidence photons |
DE102011075577B4 (de) * | 2011-05-10 | 2013-01-31 | MULTIPOND Wägetechnik GmbH | Signalverarbeitungsverfahren, Vorrichtung zur Signalverarbeitung und Waage mit Vorrichtung zur Signalverarbeitung |
CN111096761B (zh) * | 2018-10-29 | 2024-03-08 | 上海西门子医疗器械有限公司 | 修正楔形滤波器散射的方法、装置和相关设备 |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2503789C3 (de) * | 1975-01-30 | 1980-10-09 | Philips Patentverwaltung Gmbh, 2000 Hamburg | Einrichtung zum Ermitteln der Absorption einer Strahlung in einer Ebene eines Körpers, mit einer Anordnung einer Strahlenquelle und einer Vielzahl von Strahlendetektoren, die relativ zu dem Körper kontinuierlich gedreht wird |
US4029963A (en) * | 1976-07-30 | 1977-06-14 | The Board Of Trustees Of Leland Stanford Junior University | X-ray spectral decomposition imaging system |
US4331877A (en) * | 1980-03-21 | 1982-05-25 | University Patents, Inc. | Transverse tomography with optical filtering |
US4393352A (en) * | 1980-09-18 | 1983-07-12 | The Perkin-Elmer Corporation | Sample-and-hold hybrid active RC filter |
US4547893A (en) * | 1981-06-12 | 1985-10-15 | Analogic Corporation | Continuous wave fan beam tomography system having a best-estimating filter |
US4583240A (en) * | 1983-08-15 | 1986-04-15 | General Electric Company | Data acquisition circuitry for use in computerized tomography system |
US5115394A (en) * | 1983-11-25 | 1992-05-19 | Technicare Corporation | Dual energy computerized tomography system |
US4620313A (en) * | 1984-06-20 | 1986-10-28 | Technicare Corporation | Controlled cutoff frequency analog filter for CT scanners |
US4815118A (en) * | 1987-06-29 | 1989-03-21 | General Electric Company | Data converter for CT data acquisition system |
-
1990
- 1990-08-06 US US07/562,766 patent/US5218533A/en not_active Expired - Fee Related
-
1991
- 1991-05-09 CA CA002042226A patent/CA2042226A1/en not_active Abandoned
- 1991-07-23 IL IL9892891A patent/IL98928A/he not_active IP Right Cessation
- 1991-07-29 JP JP3210504A patent/JPH0790023B2/ja not_active Expired - Lifetime
- 1991-08-01 EP EP91307057A patent/EP0473296B1/en not_active Expired - Lifetime
- 1991-08-01 DE DE69125668T patent/DE69125668T2/de not_active Expired - Fee Related
- 1991-08-03 CN CN91105322A patent/CN1056506C/zh not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
US5218533A (en) | 1993-06-08 |
JPH04244138A (ja) | 1992-09-01 |
JPH0790023B2 (ja) | 1995-10-04 |
DE69125668T2 (de) | 1997-11-06 |
CN1056506C (zh) | 2000-09-20 |
DE69125668D1 (de) | 1997-05-22 |
EP0473296A3 (en) | 1992-10-28 |
EP0473296A2 (en) | 1992-03-04 |
CN1058710A (zh) | 1992-02-19 |
IL98928A0 (en) | 1992-07-15 |
EP0473296B1 (en) | 1997-04-16 |
CA2042226A1 (en) | 1992-02-07 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
KB | Patent renewed | ||
KB | Patent renewed | ||
MM9K | Patent not in force due to non-payment of renewal fees |