ATE385595T1 - Korrektur der strahlungsaufhärtung und der dämpfung in der coherent scatter computed tomography (csct) - Google Patents
Korrektur der strahlungsaufhärtung und der dämpfung in der coherent scatter computed tomography (csct)Info
- Publication number
- ATE385595T1 ATE385595T1 AT05709011T AT05709011T ATE385595T1 AT E385595 T1 ATE385595 T1 AT E385595T1 AT 05709011 T AT05709011 T AT 05709011T AT 05709011 T AT05709011 T AT 05709011T AT E385595 T1 ATE385595 T1 AT E385595T1
- Authority
- AT
- Austria
- Prior art keywords
- csct
- reconstruction
- correction
- attenuation
- computed tomography
- Prior art date
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01T—MEASUREMENT OF NUCLEAR OR X-RADIATION
- G01T1/00—Measuring X-radiation, gamma radiation, corpuscular radiation, or cosmic radiation
- G01T1/16—Measuring radiation intensity
- G01T1/161—Applications in the field of nuclear medicine, e.g. in vivo counting
- G01T1/164—Scintigraphy
- G01T1/1641—Static instruments for imaging the distribution of radioactivity in one or two dimensions using one or several scintillating elements; Radio-isotope cameras
- G01T1/1647—Processing of scintigraphic data
-
- 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
- A61B6/48—Diagnostic techniques
- A61B6/483—Diagnostic techniques involving scattered radiation
-
- G—PHYSICS
- G06—COMPUTING OR CALCULATING; COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T12/00—Tomographic reconstruction from projections
- G06T12/10—Image preprocessing, e.g. calibration, positioning of sources or scatter correction
-
- 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
- A61B6/50—Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment specially adapted for specific body parts; specially adapted for specific clinical applications
- A61B6/505—Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment specially adapted for specific body parts; specially adapted for specific clinical applications for diagnosis of bone
Landscapes
- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Medical Informatics (AREA)
- Physics & Mathematics (AREA)
- Molecular Biology (AREA)
- High Energy & Nuclear Physics (AREA)
- Biomedical Technology (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Optics & Photonics (AREA)
- General Health & Medical Sciences (AREA)
- Pathology (AREA)
- Heart & Thoracic Surgery (AREA)
- Veterinary Medicine (AREA)
- Public Health (AREA)
- Biophysics (AREA)
- Theoretical Computer Science (AREA)
- Radiology & Medical Imaging (AREA)
- General Physics & Mathematics (AREA)
- Surgery (AREA)
- Animal Behavior & Ethology (AREA)
- Pulmonology (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Toxicology (AREA)
- Analysing Materials By The Use Of Radiation (AREA)
- Apparatus For Radiation Diagnosis (AREA)
- Length-Measuring Devices Using Wave Or Particle Radiation (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP04101099 | 2004-03-17 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ATE385595T1 true ATE385595T1 (de) | 2008-02-15 |
Family
ID=34961174
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AT05709011T ATE385595T1 (de) | 2004-03-17 | 2005-03-15 | Korrektur der strahlungsaufhärtung und der dämpfung in der coherent scatter computed tomography (csct) |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US7453974B2 (de) |
| EP (1) | EP1728215B1 (de) |
| JP (1) | JP2007529738A (de) |
| CN (1) | CN1934590A (de) |
| AT (1) | ATE385595T1 (de) |
| DE (1) | DE602005004653T2 (de) |
| WO (1) | WO2005091225A1 (de) |
Families Citing this family (44)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ATE385595T1 (de) | 2004-03-17 | 2008-02-15 | Koninkl Philips Electronics Nv | Korrektur der strahlungsaufhärtung und der dämpfung in der coherent scatter computed tomography (csct) |
| US7778380B2 (en) * | 2005-09-06 | 2010-08-17 | Koninklijke Philips Electronics N.V. | Data handling and analysis in computed tomography with multiple energy windows |
| 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 |
| JP2009512851A (ja) * | 2005-10-20 | 2009-03-26 | 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 | 改良されたcsct検出器形状 |
| US7298812B2 (en) * | 2006-03-31 | 2007-11-20 | General Electric Company | Image-based material decomposition |
| CN101501478A (zh) * | 2006-08-11 | 2009-08-05 | 皇家飞利浦电子股份有限公司 | 用于获取图像数据的系统和方法 |
| US7486764B2 (en) * | 2007-01-23 | 2009-02-03 | General Electric Company | Method and apparatus to reduce charge sharing in pixellated energy discriminating detectors |
| US8045678B2 (en) * | 2008-03-21 | 2011-10-25 | Mxisystems, Inc. | Dynamically-varied beam energy using a tunable monochromatic X-ray beam |
| US7550737B1 (en) | 2008-05-16 | 2009-06-23 | The Gillette Company | Battery |
| EP2308028B1 (de) * | 2008-06-25 | 2017-04-26 | Koninklijke Philips N.V. | Bilderzeugungsvorrichtung mit optimierter dosissteuerung |
| EP2146321B1 (de) * | 2008-07-14 | 2012-12-12 | Cefla S.C. | Dynamische Fehlerkorrektur in der Röntgenbildgebung |
| JP5641748B2 (ja) * | 2009-03-18 | 2014-12-17 | 株式会社東芝 | X線コンピュータ断層撮影装置及びデータ処理方法 |
| US8976928B2 (en) * | 2009-09-02 | 2015-03-10 | Shimadzu Corporation | Radiographic apparatus and image acquiring method |
| JP4911373B2 (ja) | 2009-11-26 | 2012-04-04 | 横河電機株式会社 | X線測定装置 |
| US9888902B2 (en) * | 2011-07-12 | 2018-02-13 | Hitachi, Ltd. | X-ray CT device, calcuration device, recording medium for X-ray CT device, and maintenance method for X-ray CT device |
| US8989342B2 (en) * | 2012-04-18 | 2015-03-24 | The Boeing Company | Methods and systems for volumetric reconstruction using radiography |
| CN105073010B (zh) * | 2013-04-04 | 2018-04-03 | 东芝医疗系统株式会社 | X射线计算机断层摄影装置 |
| US10261212B2 (en) * | 2013-07-25 | 2019-04-16 | Analogic Corporation | Generation of diffraction signature of item within object |
| WO2015067511A1 (en) * | 2013-11-08 | 2015-05-14 | Koninklijke Philips N.V. | Empirical beam hardening correction for differential phase contrast ct |
| CN103926628A (zh) * | 2014-04-22 | 2014-07-16 | 史崇政 | 一种安检设备和使用该设备进行违禁物品识别的识别方法 |
| FR3023000B1 (fr) * | 2014-06-30 | 2016-07-29 | Commissariat Energie Atomique | Procede et systeme d'analyse d'un objet par diffractometrie utilisant un spectre en diffusion et un spectre en transmission |
| US9405990B2 (en) * | 2014-08-19 | 2016-08-02 | Morpho Detection, Llc | X-ray diffraction imaging system with signal aggregation across voxels containing objects and method of operating the same |
| DE102014218291A1 (de) * | 2014-09-12 | 2016-03-17 | Siemens Aktiengesellschaft | Verfahren zur Erzeugung einer Phasenkontrast-Dunkelfelddarstellung, Gitterinterferometer und bildgebendes Röntgensystem |
| US9374565B2 (en) | 2014-11-06 | 2016-06-21 | General Electric Company | System and method for multi-material correction of image data |
| CN104605880B (zh) * | 2014-12-30 | 2017-06-16 | 沈阳东软医疗系统有限公司 | 一种硬化效应数据的生成方法和装置 |
| JP6533006B2 (ja) * | 2015-07-14 | 2019-06-19 | コーニンクレッカ フィリップス エヌ ヴェKoninklijke Philips N.V. | 強化されたx線放射を用いた撮像 |
| WO2017009363A1 (en) * | 2015-07-14 | 2017-01-19 | Koninklijke Philips N.V. | Imaging with modulated x-ray radiation |
| JP7015781B2 (ja) * | 2015-07-24 | 2022-02-03 | フォト・ダイアグノスティック・システムズ,インコーポレイテッド | 多重エネルギー(二重エネルギーを含む)コンピュータ断層撮影(ct)イメージングを行うための方法および装置 |
| CN107345925B (zh) * | 2016-05-05 | 2019-10-15 | 同方威视技术股份有限公司 | 液体检测方法和系统 |
| US10573030B2 (en) | 2017-04-07 | 2020-02-25 | Photo Diagnostic Systems, Inc. | Method for artifact reduction using monoenergetic data in computed tomography |
| US11357467B2 (en) | 2018-11-30 | 2022-06-14 | Accuray, Inc. | Multi-pass computed tomography scans for improved workflow and performance |
| JP7564098B2 (ja) | 2018-11-30 | 2024-10-08 | アキュレイ インコーポレイテッド | 画像誘導放射線治療装置内に統合されるヘリカルファンビームコンピュータ断層撮影 |
| US11058369B2 (en) | 2019-11-15 | 2021-07-13 | GE Precision Healthcare LLC | Systems and methods for coherent scatter imaging using a segmented photon-counting detector for computed tomography |
| CN111643104B (zh) * | 2020-02-28 | 2022-03-18 | 清华大学 | Ct散射校正方法及系统 |
| US11166690B2 (en) | 2020-03-19 | 2021-11-09 | Accuray, Inc. | Noise and artifact reduction for image scatter correction |
| US12461046B2 (en) | 2021-03-04 | 2025-11-04 | Multict Imaging Ltd | X-ray computed tomography (CT) scanner |
| CN113109373B (zh) * | 2021-04-14 | 2022-09-27 | 中国兵器科学研究院宁波分院 | 一种面阵工业ct射束硬化校正方法 |
| US11647975B2 (en) | 2021-06-04 | 2023-05-16 | Accuray, Inc. | Radiotherapy apparatus and methods for treatment and imaging using hybrid MeV-keV, multi-energy data acquisition for enhanced imaging |
| US11605186B2 (en) | 2021-06-30 | 2023-03-14 | Accuray, Inc. | Anchored kernel scatter estimate |
| US11794039B2 (en) | 2021-07-13 | 2023-10-24 | Accuray, Inc. | Multimodal radiation apparatus and methods |
| US11854123B2 (en) | 2021-07-23 | 2023-12-26 | Accuray, Inc. | Sparse background measurement and correction for improving imaging |
| GB2624336B (en) * | 2021-09-07 | 2026-03-04 | Rapiscan Systems Inc | Methods and systems for accurate visual layer separation in the displays of scanning systems |
| US12257083B2 (en) | 2022-02-07 | 2025-03-25 | Accuray Inc. | Methods for saturation correction and dynamic gain configuration and apparatuses for performing the same |
| CN116206694B (zh) * | 2023-03-13 | 2025-09-30 | 西安交通大学 | 一种考虑分子干涉效应的光子-原子相干散射截面计算方法 |
Family Cites Families (14)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US3965358A (en) * | 1974-12-06 | 1976-06-22 | Albert Macovski | Cross-sectional imaging system using a polychromatic x-ray source |
| US4149081A (en) * | 1976-11-29 | 1979-04-10 | Varian Associates, Inc. | Removal of spectral artifacts and utilization of spectral effects in computerized tomography |
| DE3406905A1 (de) * | 1984-02-25 | 1985-09-05 | Philips Patentverwaltung Gmbh, 2000 Hamburg | Roentgengeraet |
| US5335260A (en) * | 1992-11-25 | 1994-08-02 | Arnold Ben A | Calibration phantom and improved method of quantifying calcium and bone density using same |
| DE69321244T3 (de) * | 1993-12-24 | 2003-03-13 | Agfa-Gevaert N.V., Mortsel | Verfahren mit einer teildurchsichtigen Abschirmung zum Ausgleich der Röntgenbilddarstellung von Streustrahlen in Röntgenbildern |
| JP3901770B2 (ja) * | 1996-10-21 | 2007-04-04 | 富士フイルム株式会社 | エネルギーサブトラクション処理方法および装置 |
| US6320931B1 (en) * | 1998-03-02 | 2001-11-20 | Image Analysis, Inc. | Automated x-ray bone densitometer |
| US6157703A (en) * | 1998-10-06 | 2000-12-05 | Cardiac Mariners, Inc. | Beam hardening filter for x-ray source |
| US6421419B1 (en) * | 2000-11-08 | 2002-07-16 | Fuji Photo Film Co., Ltd. | Energy subtraction processing method and apparatus |
| US6507633B1 (en) * | 2001-02-15 | 2003-01-14 | The Regents Of The University Of Michigan | Method for statistically reconstructing a polyenergetic X-ray computed tomography image and image reconstructor apparatus utilizing the method |
| US7248726B2 (en) * | 2001-03-21 | 2007-07-24 | Fujifilm Corporation | Energy subtraction processing method and apparatus |
| DE10252662A1 (de) | 2002-11-11 | 2004-05-27 | Philips Intellectual Property & Standards Gmbh | Computertomographie-Verfahren mit kohärenten Streustrahlen und Computertomograph |
| US7065234B2 (en) * | 2004-02-23 | 2006-06-20 | General Electric Company | Scatter and beam hardening correction in computed tomography applications |
| ATE385595T1 (de) | 2004-03-17 | 2008-02-15 | Koninkl Philips Electronics Nv | Korrektur der strahlungsaufhärtung und der dämpfung in der coherent scatter computed tomography (csct) |
-
2005
- 2005-03-15 AT AT05709011T patent/ATE385595T1/de not_active IP Right Cessation
- 2005-03-15 WO PCT/IB2005/050904 patent/WO2005091225A1/en not_active Ceased
- 2005-03-15 CN CNA2005800087517A patent/CN1934590A/zh active Pending
- 2005-03-15 JP JP2007503483A patent/JP2007529738A/ja not_active Withdrawn
- 2005-03-15 DE DE602005004653T patent/DE602005004653T2/de not_active Expired - Fee Related
- 2005-03-15 US US10/598,835 patent/US7453974B2/en not_active Expired - Fee Related
- 2005-03-15 EP EP05709011A patent/EP1728215B1/de not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| US20070189444A1 (en) | 2007-08-16 |
| CN1934590A (zh) | 2007-03-21 |
| US7453974B2 (en) | 2008-11-18 |
| EP1728215B1 (de) | 2008-02-06 |
| WO2005091225A1 (en) | 2005-09-29 |
| EP1728215A1 (de) | 2006-12-06 |
| DE602005004653T2 (de) | 2009-01-29 |
| DE602005004653D1 (de) | 2008-03-20 |
| JP2007529738A (ja) | 2007-10-25 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| RER | Ceased as to paragraph 5 lit. 3 law introducing patent treaties |