BR0001638A - Métodos e aparelho para explorar um objeto em um sistema de tomografia computadorizada - Google Patents
Métodos e aparelho para explorar um objeto em um sistema de tomografia computadorizadaInfo
- Publication number
- BR0001638A BR0001638A BR0001638-1A BR0001638A BR0001638A BR 0001638 A BR0001638 A BR 0001638A BR 0001638 A BR0001638 A BR 0001638A BR 0001638 A BR0001638 A BR 0001638A
- Authority
- BR
- Brazil
- Prior art keywords
- methods
- computed tomography
- exploring
- tomography system
- explore
- Prior art date
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N23/00—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00
- G01N23/02—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by transmitting the radiation through the material
- G01N23/04—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by transmitting the radiation through the material and forming images of the material
- G01N23/046—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by transmitting the radiation through the material and forming images of the material using tomography, e.g. computed tomography [CT]
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2223/00—Investigating materials by wave or particle radiation
- G01N2223/40—Imaging
- G01N2223/419—Imaging computed tomograph
Landscapes
- Health & Medical Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Pulmonology (AREA)
- Radiology & Medical Imaging (AREA)
- Analytical Chemistry (AREA)
- Physics & Mathematics (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Apparatus For Radiation Diagnosis (AREA)
- Analysing Materials By The Use Of Radiation (AREA)
Abstract
Patente de Invenção: <B>"MéTODOS E APARELHO PARA EXPLORAR UM OBJETO EM UM SISTEMA DE TOMOGRAFIA COMPUTADORIZADA"<D>. A presente invenção, em uma forma, é um sistema para reduzir a contribuição do sinal de dispersão a uma imagem de um objeto (83) construído de dados de projeção adquiridos durante uma exploração de tomografia computadorizada. O sistema inclui uma fonte de raios X (72) a qual emite um feixe de raios X na direção de uma malha de detectores
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US09/295,481 US6175609B1 (en) | 1999-04-20 | 1999-04-20 | Methods and apparatus for scanning an object in a computed tomography system |
Publications (2)
Publication Number | Publication Date |
---|---|
BR0001638A true BR0001638A (pt) | 2001-01-02 |
BR0001638B1 BR0001638B1 (pt) | 2011-11-16 |
Family
ID=23137906
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
BRPI0001638-1A BR0001638B1 (pt) | 1999-04-20 | 2000-04-18 | Processo e sistema para gerar dados de projeção em um sistema de tomografia computadorizada. |
Country Status (6)
Country | Link |
---|---|
US (1) | US6175609B1 (pt) |
EP (1) | EP1046903B1 (pt) |
JP (1) | JP3377496B2 (pt) |
BR (1) | BR0001638B1 (pt) |
DE (1) | DE60033723T2 (pt) |
SG (1) | SG80094A1 (pt) |
Families Citing this family (36)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20020081010A1 (en) * | 2000-12-21 | 2002-06-27 | Chang Yun C. | Method and system for acquiring full spine and full leg images using flat panel digital radiography |
US7664223B1 (en) * | 2001-02-12 | 2010-02-16 | Sectra Mamea Ab | Collimator element |
US6687326B1 (en) | 2001-04-11 | 2004-02-03 | Analogic Corporation | Method of and system for correcting scatter in a computed tomography scanner |
DE10201321B4 (de) * | 2002-01-15 | 2011-02-24 | Siemens Ag | Computertomographie-Gerät und Verfahren mit aktiver Anpassung der Mess-Elektronik |
US6879657B2 (en) * | 2002-05-10 | 2005-04-12 | Ge Medical Systems Global Technology, Llc | Computed tomography system with integrated scatter detectors |
US6748047B2 (en) * | 2002-05-15 | 2004-06-08 | General Electric Company | Scatter correction method for non-stationary X-ray acquisitions |
US20040019275A1 (en) * | 2002-07-23 | 2004-01-29 | Maria Iatrou | Method and apparatus for positioning a CT reconstruction window |
US6956926B2 (en) * | 2002-07-23 | 2005-10-18 | General Electric Company | Method and apparatus for selecting a reconstruction projection set |
DE10317679B4 (de) * | 2003-04-17 | 2005-03-31 | Bruker Axs Gmbh | Röntgen-optische Vorrichtung mit Wobbel-Einrichtung |
US6876718B2 (en) * | 2003-06-27 | 2005-04-05 | Ge Medical Systems Global Technology Company, Llc | Scatter correction methods and apparatus |
JP3942178B2 (ja) * | 2003-07-29 | 2007-07-11 | 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 |
JP3999179B2 (ja) * | 2003-09-09 | 2007-10-31 | 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 | 放射線断層撮影装置 |
JP3961468B2 (ja) * | 2003-09-19 | 2007-08-22 | 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 | 放射線計算断層画像装置およびそれに用いる放射線検出器 |
JP4906512B2 (ja) | 2003-11-24 | 2012-03-28 | パスポート システムズ, インク. | 核共鳴蛍光画像化を用いた物質の適応走査 |
US8180019B2 (en) * | 2003-11-24 | 2012-05-15 | Passport Systems, Inc. | Methods and systems for computer tomography of nuclear isotopes using nuclear resonance fluorescence |
JP3950855B2 (ja) * | 2004-01-07 | 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 | 散乱測定方法、散乱補正方法およびx線ct装置 |
EP1766380B1 (en) * | 2004-07-08 | 2020-06-10 | Passport Systems, Inc. | Methods and systems for determining the average atomic number and mass of materials |
EP3124960B1 (en) * | 2005-02-22 | 2018-05-09 | Passport Systems, Inc. | Use of nearly monochromatic and tunable photon sources with nuclear resonance fluorescence in non-intrusive inspection of containers for material detection and imaging |
US7372262B2 (en) * | 2005-11-09 | 2008-05-13 | Passport Systems, Inc. | Methods and systems for active non-intrusive inspection and verification of cargo and goods |
JP4586987B2 (ja) * | 2005-11-24 | 2010-11-24 | 株式会社島津製作所 | X線ct装置 |
JP2007333509A (ja) * | 2006-06-14 | 2007-12-27 | Hitachi Engineering & Services Co Ltd | 放射線を用いた断層撮影装置及び断層撮影方法 |
US7539283B2 (en) * | 2007-01-17 | 2009-05-26 | Ge Homeland Protection, Inc. | Combined computed tomography and nuclear resonance fluorescence cargo inspection system and method |
US8184767B2 (en) * | 2008-12-10 | 2012-05-22 | General Electric Company | Imaging system and method with scatter correction |
WO2010141839A2 (en) * | 2009-06-04 | 2010-12-09 | Virginia Tech Intellectual Properties, Inc. | Multi-parameter x-ray computed tomography |
US8483351B2 (en) | 2009-10-28 | 2013-07-09 | Virginia Tech Intellectual Properties, Inc. | Cardiac computed tomography methods and systems using fast exact/quasi-exact filtered back projection algorithms |
EP3146526B1 (en) | 2014-05-19 | 2018-12-26 | 3Shape A/S | A radiographic system and method for reducing motion blur and scatter radiation |
US10746671B2 (en) * | 2015-03-06 | 2020-08-18 | Ge Sensing & Inspection Technologies Gmbh | Imaging system and method with scatter correction |
CN109996494B (zh) * | 2016-12-20 | 2023-05-02 | 深圳帧观德芯科技有限公司 | 具有x射线检测器的图像传感器 |
WO2019041223A1 (en) * | 2017-08-31 | 2019-03-07 | Shenzhen United Imaging Healthcare Co., Ltd. | METHOD AND SYSTEM FOR DETERMINING FOCAL CT POINT |
US10948428B2 (en) | 2018-05-25 | 2021-03-16 | Delavan Inc. | Reducing scatter for computed tomography |
JP7178204B2 (ja) * | 2018-08-08 | 2022-11-25 | セメス株式会社 | X線検査装置、x線検査方法 |
JP7187408B2 (ja) * | 2019-09-06 | 2022-12-12 | 富士フイルム株式会社 | トモシンセシス撮影装置 |
US11141128B2 (en) | 2019-12-13 | 2021-10-12 | General Electric Company | Systems and methods for focal spot motion detection and correction |
US11662321B2 (en) * | 2020-10-09 | 2023-05-30 | Baker Hughes Oilfield Operations Llc | Scatter correction for computed tomography imaging |
US11698349B2 (en) * | 2020-10-09 | 2023-07-11 | Baker Hughes Oilfield Operations Llc | Scatter correction for computed tomography imaging |
CN115135246A (zh) * | 2020-11-25 | 2022-09-30 | 深圳帧观德芯科技有限公司 | 使用具有多个辐射检测器的图像传感器的成像方法 |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1571509A (en) * | 1976-03-03 | 1980-07-16 | Emi Ltd | Radiography |
FR2372618A1 (fr) * | 1976-12-02 | 1978-06-30 | Emi Ltd | Dispositif de collimation pour rayons penetrants et application a la tomographie axiale |
US4691332A (en) * | 1983-03-14 | 1987-09-01 | American Science And Engineering, Inc. | High energy computed tomography |
DE3316003A1 (de) * | 1983-05-03 | 1984-11-08 | Philips Patentverwaltung Gmbh, 2000 Hamburg | Vorrichtung zur beseitigung von streustrahlung |
US4707608A (en) * | 1985-04-10 | 1987-11-17 | University Of North Carolina At Chapel Hill | Kinestatic charge detection using synchronous displacement of detecting device |
JPS61249452A (ja) * | 1985-04-30 | 1986-11-06 | 株式会社東芝 | X線診断装置 |
US4672648A (en) * | 1985-10-25 | 1987-06-09 | Picker International, Inc. | Apparatus and method for radiation attenuation |
JPH0763464B2 (ja) * | 1986-05-07 | 1995-07-12 | 株式会社東芝 | X線ct装置 |
US5144141A (en) | 1991-08-19 | 1992-09-01 | General Electric Company | Photodetector scintillator radiation imager |
US5231655A (en) | 1991-12-06 | 1993-07-27 | General Electric Company | X-ray collimator |
US5231654A (en) | 1991-12-06 | 1993-07-27 | General Electric Company | Radiation imager collimator |
US5430298A (en) | 1994-06-21 | 1995-07-04 | General Electric Company | CT array with improved photosensor linearity and reduced crosstalk |
-
1999
- 1999-04-20 US US09/295,481 patent/US6175609B1/en not_active Expired - Lifetime
-
2000
- 2000-04-07 SG SG200002007A patent/SG80094A1/en unknown
- 2000-04-18 BR BRPI0001638-1A patent/BR0001638B1/pt not_active IP Right Cessation
- 2000-04-19 DE DE60033723T patent/DE60033723T2/de not_active Expired - Lifetime
- 2000-04-19 EP EP00303338A patent/EP1046903B1/en not_active Expired - Lifetime
- 2000-04-20 JP JP2000118788A patent/JP3377496B2/ja not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
JP2000321221A (ja) | 2000-11-24 |
DE60033723T2 (de) | 2007-11-29 |
BR0001638B1 (pt) | 2011-11-16 |
EP1046903B1 (en) | 2007-03-07 |
SG80094A1 (en) | 2001-04-17 |
EP1046903A2 (en) | 2000-10-25 |
EP1046903A3 (en) | 2003-01-22 |
DE60033723D1 (de) | 2007-04-19 |
JP3377496B2 (ja) | 2003-02-17 |
US6175609B1 (en) | 2001-01-16 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
BR0001638A (pt) | Métodos e aparelho para explorar um objeto em um sistema de tomografia computadorizada | |
Ritman | Molecular imaging in small animals—roles for micro‐CT | |
MY146301A (en) | X-ray inspection with contemporaneous and proximal transmission and backscatter imaging | |
US8003949B2 (en) | Multiple screen detection systems | |
CN103462628B (zh) | 辐射成像设备及方法 | |
DE69633782D1 (de) | Vorrichtung undverfahren zum bestimmen der raumkoordinaten von radiomarkiertem gewebe | |
WO2002012918A3 (en) | CAMERA GAMMA TEM | |
EP0770257A4 (en) | THREE-DIMENSIONAL IMAGING SYSTEM USING LASER-GENERATED ULTR-SHORT X-RAY IMPULSES | |
RU2008110176A (ru) | Реконструкция в позитронной эмиссионной томографии в режиме времяпролетного списка с использованием функции отклика детектора | |
WO2000019901A8 (en) | X-ray system | |
WO2008132988A1 (ja) | X線画像分析システム及びプログラム | |
SE0302022D0 (sv) | Scanning-based detection of ionizing radiation for tomosynthesis | |
DE69928708D1 (de) | Positronenemissions-Bilderzeugung | |
Harrison | Digital radiography—a review of detector design | |
US20020147393A1 (en) | Pre-operative device for localizing marked tissues and process using such a device | |
Sato et al. | Initial results of in vivo CT imaging of contrast agents using MPPC-based photon-counting CT | |
EP1645868A4 (en) | GAMMA RADIATION IMAGING SYSTEM FOR NON-DESTRUCTIVE INSPECTION OF LUGGAGE | |
FI20000368A0 (fi) | Menetelmä pään alueen kuvaamiseksi | |
Haghnegahdar et al. | Accuracy of linear vertical measurements in posterior mandible on panoramic view | |
Moshfeghi et al. | Effects of different viewing conditions on radiographic interpretation | |
Hain | Positron emission tomography in cancer of the head and neck | |
EP0971318A3 (en) | Device for extrapolation from cone beam projection data | |
Woolfenden et al. | Lung cancer detection using a miniature sodium iodide detector and cobalt-57 bleomycin | |
Janssen et al. | Detectability of lung nodules in ultra-low dose CT | |
WO2005071392A1 (en) | Computer tomograph and radiation detector for detecting rays that are elastically scattered in an object |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
B06A | Patent application procedure suspended [chapter 6.1 patent gazette] | ||
B06A | Patent application procedure suspended [chapter 6.1 patent gazette] | ||
B09A | Decision: intention to grant [chapter 9.1 patent gazette] | ||
B16A | Patent or certificate of addition of invention granted [chapter 16.1 patent gazette] |
Free format text: PRAZO DE VALIDADE: 10 (DEZ) ANOS CONTADOS A PARTIR DE 16/11/2011, OBSERVADAS AS CONDICOES LEGAIS. |
|
B21F | Lapse acc. art. 78, item iv - on non-payment of the annual fees in time |
Free format text: REFERENTE A 15A ANUIDADE. |
|
B24J | Lapse because of non-payment of annual fees (definitively: art 78 iv lpi, resolution 113/2013 art. 12) |
Free format text: EM VIRTUDE DA EXTINCAO PUBLICADA NA RPI 2308 DE 31-03-2015 E CONSIDERANDO AUSENCIA DE MANIFESTACAO DENTRO DOS PRAZOS LEGAIS, INFORMO QUE CABE SER MANTIDA A EXTINCAO DA PATENTE E SEUS CERTIFICADOS, CONFORME O DISPOSTO NO ARTIGO 12, DA RESOLUCAO 113/2013. |