CN1483383A - 一种ct机射束硬化的校正方法 - Google Patents
一种ct机射束硬化的校正方法 Download PDFInfo
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- CN1483383A CN1483383A CNA031337635A CN03133763A CN1483383A CN 1483383 A CN1483383 A CN 1483383A CN A031337635 A CNA031337635 A CN A031337635A CN 03133763 A CN03133763 A CN 03133763A CN 1483383 A CN1483383 A CN 1483383A
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- 238000000034 method Methods 0.000 title claims abstract description 20
- 238000001228 spectrum Methods 0.000 claims abstract description 20
- 238000012937 correction Methods 0.000 claims abstract description 7
- 239000000126 substance Substances 0.000 claims abstract description 5
- 230000003595 spectral effect Effects 0.000 claims description 40
- 238000013459 approach Methods 0.000 claims description 3
- 230000003044 adaptive effect Effects 0.000 claims description 2
- 238000001914 filtration Methods 0.000 abstract description 3
- 239000000463 material Substances 0.000 description 7
- 208000034189 Sclerosis Diseases 0.000 description 3
- 238000012805 post-processing Methods 0.000 description 3
- 238000002203 pretreatment Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000003384 imaging method Methods 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000032696 parturition Effects 0.000 description 1
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- 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
- A61B6/58—Testing, adjusting or calibrating thereof
- A61B6/582—Calibration
- A61B6/583—Calibration using calibration phantoms
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- 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
- A61B6/40—Arrangements for generating radiation specially adapted for radiation diagnosis
- A61B6/4035—Arrangements for generating radiation specially adapted for radiation diagnosis the source being combined with a filter or grating
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- 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]
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Abstract
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Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CNB031337635A CN1296011C (zh) | 2003-07-16 | 2003-07-16 | 一种ct机射束硬化的校正方法 |
US10/868,170 US7134787B2 (en) | 2003-07-16 | 2004-06-15 | Method of CT beam hardening calibration |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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CNB031337635A CN1296011C (zh) | 2003-07-16 | 2003-07-16 | 一种ct机射束硬化的校正方法 |
Publications (2)
Publication Number | Publication Date |
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CN1483383A true CN1483383A (zh) | 2004-03-24 |
CN1296011C CN1296011C (zh) | 2007-01-24 |
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Application Number | Title | Priority Date | Filing Date |
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CNB031337635A Expired - Fee Related CN1296011C (zh) | 2003-07-16 | 2003-07-16 | 一种ct机射束硬化的校正方法 |
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US (1) | US7134787B2 (zh) |
CN (1) | CN1296011C (zh) |
Cited By (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN100361632C (zh) * | 2005-03-22 | 2008-01-16 | 东软飞利浦医疗设备系统有限责任公司 | 一种自动去除黑心伪影的x-射线计算机层析成像机 |
CN100365664C (zh) * | 2006-03-02 | 2008-01-30 | 西安交通大学 | 基于hl一致性条件的ct投影数据射束硬化效应校正方法 |
CN100381103C (zh) * | 2005-03-22 | 2008-04-16 | 东软飞利浦医疗设备系统有限责任公司 | 一种ct机几何参数校正方法 |
CN100435732C (zh) * | 2004-04-29 | 2008-11-26 | Ge医疗系统环球技术有限公司 | 图像重构方法及x射线ct装置 |
CN100453044C (zh) * | 2004-11-16 | 2009-01-21 | 北京航空航天大学 | 基于原始投影正弦图的ct射束硬化校正方法 |
CN100566660C (zh) * | 2004-09-03 | 2009-12-09 | 佳能株式会社 | 医疗信息处理器和吸收系数校准方法 |
CN101329403B (zh) * | 2007-06-21 | 2010-12-15 | 上海西门子医疗器械有限公司 | 一种对ct探测器模块进行校准检测的方法 |
CN104605880A (zh) * | 2014-12-30 | 2015-05-13 | 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 |
CN106264579A (zh) * | 2016-09-29 | 2017-01-04 | 四川大学 | 一种可以验证射束硬化对cbct成像质量的影响的装置 |
CN106618619A (zh) * | 2016-01-30 | 2017-05-10 | 上海联影医疗科技有限公司 | 计算机断层成像设备 |
CN106955118A (zh) * | 2017-04-11 | 2017-07-18 | 沈阳开普医疗影像技术有限公司 | Ct形状过滤器缺陷的单能矫正方法 |
CN105705097B (zh) * | 2013-11-08 | 2019-04-12 | 皇家飞利浦有限公司 | 针对差分相位衬度ct的经验性射束硬化校正 |
CN109833053A (zh) * | 2019-02-28 | 2019-06-04 | 沈阳开普医疗影像技术有限公司 | Ct形状过滤器缺陷的双能矫正方法 |
WO2020077592A1 (zh) * | 2018-10-18 | 2020-04-23 | 清华大学 | Ct系统能谱不一致性的校正方法 |
CN111603192A (zh) * | 2020-06-06 | 2020-09-01 | 上海网钜信息科技有限公司 | 一种基于机器视觉的校验模体的方法 |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4858617B2 (ja) * | 2007-11-29 | 2012-01-18 | 株式会社島津製作所 | 断層撮影装置 |
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 |
US10357221B2 (en) * | 2014-08-22 | 2019-07-23 | Samsung Electronics Co., Ltd. | Anatomical imaging system with improved detector calibration process |
EP3675739A4 (en) | 2017-08-28 | 2020-08-19 | Shanghai United Imaging Healthcare Co., Ltd. | SYSTEM AND METHOD FOR REMOVING HARD TISSUE IN A COMPUTER IMAGE |
US11717252B2 (en) | 2018-08-03 | 2023-08-08 | NeuroLogica Corporation, a subsidiary of Samsung Electronics Co., Ltd. | AI-based rendered volume auto-correction for fixed and mobile x-ray imaging modalities and other imaging modalities |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4288695A (en) * | 1979-04-13 | 1981-09-08 | Technicare Corporation | Computerized tomographic scanner with shaped radiation filter |
FR2664708B1 (fr) * | 1990-07-10 | 1992-09-25 | Gen Electric Cgr | Procede de correction du durcissement d'un faisceau de rayons x dans un scanner. |
US5953444A (en) * | 1997-10-22 | 1999-09-14 | University Of Pennsylvania | Method for improved correction of spectrum hardening artifacts in computed tomography images |
US6324240B1 (en) * | 1998-11-12 | 2001-11-27 | The Board Of Trustees Of The Leland Stanford Junior University | Method for beam hardening correction in quantitative computed X-ray tomography |
DE10048775B4 (de) * | 2000-09-29 | 2006-02-02 | Siemens Ag | Röntgen-Computertomographieeinrichtung |
DE10051462A1 (de) * | 2000-10-17 | 2002-04-25 | Siemens Ag | Verfahren zur Strahlaufhärtungskorrektur für ein mittels eines CT-Geräts aufgenommenes Ausgangsbild |
JP4142482B2 (ja) * | 2003-04-04 | 2008-09-03 | 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 |
US6848827B2 (en) * | 2003-05-13 | 2005-02-01 | General Electric Company | Method and apparatus for calibrating detector spectral response |
-
2003
- 2003-07-16 CN CNB031337635A patent/CN1296011C/zh not_active Expired - Fee Related
-
2004
- 2004-06-15 US US10/868,170 patent/US7134787B2/en not_active Expired - Fee Related
Cited By (23)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN100435732C (zh) * | 2004-04-29 | 2008-11-26 | Ge医疗系统环球技术有限公司 | 图像重构方法及x射线ct装置 |
CN100566660C (zh) * | 2004-09-03 | 2009-12-09 | 佳能株式会社 | 医疗信息处理器和吸收系数校准方法 |
CN100453044C (zh) * | 2004-11-16 | 2009-01-21 | 北京航空航天大学 | 基于原始投影正弦图的ct射束硬化校正方法 |
CN100361632C (zh) * | 2005-03-22 | 2008-01-16 | 东软飞利浦医疗设备系统有限责任公司 | 一种自动去除黑心伪影的x-射线计算机层析成像机 |
CN100381103C (zh) * | 2005-03-22 | 2008-04-16 | 东软飞利浦医疗设备系统有限责任公司 | 一种ct机几何参数校正方法 |
CN100365664C (zh) * | 2006-03-02 | 2008-01-30 | 西安交通大学 | 基于hl一致性条件的ct投影数据射束硬化效应校正方法 |
CN101329403B (zh) * | 2007-06-21 | 2010-12-15 | 上海西门子医疗器械有限公司 | 一种对ct探测器模块进行校准检测的方法 |
CN105705097B (zh) * | 2013-11-08 | 2019-04-12 | 皇家飞利浦有限公司 | 针对差分相位衬度ct的经验性射束硬化校正 |
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 |
CN104605880A (zh) * | 2014-12-30 | 2015-05-13 | 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 |
US10092267B2 (en) | 2014-12-30 | 2018-10-09 | Shenyang Neusoft Medical Systems Co., Ltd. | Generating material hardening effect data |
CN106725569A (zh) * | 2016-01-30 | 2017-05-31 | 上海联影医疗科技有限公司 | 骨硬化伪影校正方法及装置 |
CN106618620A (zh) * | 2016-01-30 | 2017-05-10 | 上海联影医疗科技有限公司 | 骨硬化伪影校正系数计算方法及装置 |
CN106618619A (zh) * | 2016-01-30 | 2017-05-10 | 上海联影医疗科技有限公司 | 计算机断层成像设备 |
CN106618619B (zh) * | 2016-01-30 | 2021-01-08 | 上海联影医疗科技股份有限公司 | 计算机断层成像设备 |
CN106264579A (zh) * | 2016-09-29 | 2017-01-04 | 四川大学 | 一种可以验证射束硬化对cbct成像质量的影响的装置 |
CN106264579B (zh) * | 2016-09-29 | 2023-03-17 | 四川大学 | 一种可以验证射束硬化对cbct成像质量的影响的装置 |
CN106955118A (zh) * | 2017-04-11 | 2017-07-18 | 沈阳开普医疗影像技术有限公司 | Ct形状过滤器缺陷的单能矫正方法 |
CN106955118B (zh) * | 2017-04-11 | 2020-04-17 | 沈阳开普医疗影像技术有限公司 | Ct形状过滤器缺陷的单能矫正方法 |
WO2020077592A1 (zh) * | 2018-10-18 | 2020-04-23 | 清华大学 | Ct系统能谱不一致性的校正方法 |
CN109833053A (zh) * | 2019-02-28 | 2019-06-04 | 沈阳开普医疗影像技术有限公司 | Ct形状过滤器缺陷的双能矫正方法 |
CN111603192A (zh) * | 2020-06-06 | 2020-09-01 | 上海网钜信息科技有限公司 | 一种基于机器视觉的校验模体的方法 |
CN111603192B (zh) * | 2020-06-06 | 2023-06-16 | 上海网钜信息科技有限公司 | 一种基于机器视觉的校验模体的方法 |
Also Published As
Publication number | Publication date |
---|---|
US20050013414A1 (en) | 2005-01-20 |
CN1296011C (zh) | 2007-01-24 |
US7134787B2 (en) | 2006-11-14 |
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