WO2009022625A1 - Ｘ線ｃｔ装置および該方法 - Google Patents

Ｘ線ｃｔ装置および該方法 Download PDF

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Publication number
WO2009022625A1
WO2009022625A1 PCT/JP2008/064229 JP2008064229W WO2009022625A1 WO 2009022625 A1 WO2009022625 A1 WO 2009022625A1 JP 2008064229 W JP2008064229 W JP 2008064229W WO 2009022625 A1 WO2009022625 A1 WO 2009022625A1
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Prior art keywords
ray
inspection object
basis
computed
thickness
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PCT/JP2008/064229
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English (en)
French (fr)
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Ikuo Kanno
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Kyoto University
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Publication date
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Priority to EP08827357A priority Critical patent/EP2189115A4/en
Priority to JP2009528104A priority patent/JP5367574B2/ja
Priority to CN2008801031103A priority patent/CN102215754B/zh
Priority to US12/673,197 priority patent/US8180016B2/en
Publication of WO2009022625A1 publication Critical patent/WO2009022625A1/ja

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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]
    • 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
    • A61B6/40—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
    • 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
    • A61B6/4042—K-edge filters
    • 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
    • A61B6/405—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 or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment
    • A61B6/42—Arrangements for detecting radiation specially adapted for radiation diagnosis
    • A61B6/4208—Arrangements for detecting radiation specially adapted for radiation diagnosis characterised by using a particular type of detector
    • A61B6/4241—Arrangements for detecting radiation specially adapted for radiation diagnosis characterised by using a particular type of detector using energy resolving detectors, e.g. photon counting
    • 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
    • A61B6/481—Diagnostic techniques involving the use of contrast agents
    • 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
    • A61B6/482—Diagnostic techniques involving multiple energy imaging
    • 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
    • A61B6/54—Control of apparatus or devices for radiation diagnosis
    • A61B6/542—Control of apparatus or devices for radiation diagnosis involving control of exposure
    • A61B6/544—Control of apparatus or devices for radiation diagnosis involving control of exposure dependent on patient size
    • 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
    • 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
    • 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
    • G01N23/06—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 measuring the absorption
    • G01N23/083—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 measuring the absorption the radiation being X-rays
    • G01N23/087—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 measuring the absorption the radiation being X-rays using polyenergetic X-rays
    • 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
    • A61B6/504—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 blood vessels, e.g. by angiography

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  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
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  • Pathology (AREA)
  • General Health & Medical Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Radiology & Medical Imaging (AREA)
  • Surgery (AREA)
  • Veterinary Medicine (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Molecular Biology (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Animal Behavior & Ethology (AREA)
  • Biophysics (AREA)
  • Public Health (AREA)
  • Optics & Photonics (AREA)
  • Pulmonology (AREA)
  • Theoretical Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
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  • Biochemistry (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Toxicology (AREA)
  • Apparatus For Radiation Diagnosis (AREA)
  • Analysing Materials By The Use Of Radiation (AREA)

Abstract

　Ｘ線ＣＴ装置１およびＸ線ＣＴ方法では、検査対象物としてのＸ線造影剤のＫ吸収端上下に設定される特定のエネルギ範囲における透過Ｘ線の個数に基づいて検査対象物の厚さが演算され、この演算された検査対象物の厚さに基づいてＣＴ画像が再構成される。このようなＸ線ＣＴ装置１およびＸ線ＣＴ方法は、被検体の大きさやＸ線管電圧（Ｘ線のエネルギ分布）に依存することなく安定的にＸ線ＣＴ画像を生成することが可能となる。
PCT/JP2008/064229 2007-08-15 2008-08-07 Ｘ線ｃｔ装置および該方法 WO2009022625A1 (ja)

Priority Applications (4)

Application Number Priority Date Filing Date Title
EP08827357A EP2189115A4 (en) 2007-08-15 2008-08-07 X-RAY TOMODENSITOMETRY APPARATUS, AND METHOD THEREOF
JP2009528104A JP5367574B2 (ja) 2007-08-15 2008-08-07 Ｘ線ｃｔ装置および該方法
CN2008801031103A CN102215754B (zh) 2007-08-15 2008-08-07 X线ct装置及x线ct方法
US12/673,197 US8180016B2 (en) 2007-08-15 2008-08-07 X-ray CT apparatus and method thereof

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2007-211948 2007-08-15
JP2007211948 2007-08-15

Publications (1)

Publication Number Publication Date
WO2009022625A1 true WO2009022625A1 (ja) 2009-02-19

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PCT/JP2008/064229 WO2009022625A1 (ja) 2007-08-15 2008-08-07 Ｘ線ｃｔ装置および該方法

Country Status (5)

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US (1) US8180016B2 (ja)
EP (2) EP3090686A1 (ja)
JP (1) JP5367574B2 (ja)
CN (1) CN102215754B (ja)
WO (1) WO2009022625A1 (ja)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2013522585A (ja) * 2010-03-12 2013-06-13 クロメック リミテッド 検出器デバイス、検査装置および方法
JP2014230584A (ja) * 2013-05-28 2014-12-11 株式会社東芝 Ｘ線診断装置、医用画像処理装置及び医用画像処理プログラム
JP2014233633A (ja) * 2013-05-30 2014-12-15 株式会社東芝 フォトンカウンティングｘ線コンピュータ断層撮影装置、および医用画像再構成プログラム
JP2014239840A (ja) * 2013-06-12 2014-12-25 株式会社東芝 放射線画像診断装置
US10451568B2 (en) 2014-08-22 2019-10-22 Canon Medical Systems Corporation Photon counting X-ray CT apparatus
US10463329B2 (en) 2013-05-28 2019-11-05 Canon Medical Systems Corporation X-ray diagnostic apparatus and X-ray diagnostic method
JP7185350B1 (ja) * 2021-08-23 2022-12-07 エイト マージン カンパニー，リミテッド 放射線低減フィルター及び放射線低減フィルターの製造方法

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US20140072108A1 (en) * 2010-07-16 2014-03-13 David P. Rohler Methods and apparatus for extended low contrast detectability for radiographic imaging systems
US9224240B2 (en) * 2010-11-23 2015-12-29 Siemens Medical Solutions Usa, Inc. Depth-based information layering in medical diagnostic ultrasound
US20120215095A1 (en) * 2011-02-22 2012-08-23 Amit Mordechai Av-Shalom X-Ray radiation reduction system
US20120236995A1 (en) * 2011-03-17 2012-09-20 Christian Eusemann Automated Imaging Contrast Agent Determination System
JP2014223289A (ja) * 2013-04-16 2014-12-04 株式会社東芝 Ｘ線ｃｔ装置
EP3271898B1 (en) * 2015-03-18 2019-10-16 Prismatic Sensors AB Image reconstruction based on energy-resolved image data from a photon-counting multi bin detector
JP7202302B2 (ja) * 2017-01-05 2023-01-11 ゼネラル・エレクトリック・カンパニイ 断層撮影再構成に使用するためのデータのディープラーニングに基づく推定
EP3547254A1 (de) 2018-03-29 2019-10-02 Siemens Healthcare GmbH Analyse-verfahren und analyseeinheit zur ermittlung radiologischer ergebnisdaten
CN112666194B (zh) * 2020-12-22 2022-12-20 上海培云教育科技有限公司 一种虚拟数字dr图像的生成方法及dr虚拟仿真仪器

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AKIO UESAKA ET AL.: "B30 Iodine Zoeizai o Mochiita X-sen Toka Satsueiho ni Okeru Denryu Sokuteiho to Energy Sokuteiho no Hikaku", ATOMIC ENERGY SOCIETY OF JAPAN '2007 NEN HARU NO NENKAI' ( 2007 NEN 3 GATU 27-29 NICHI, NAGOYA UNIVERSITY, 2007, pages 71 *
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Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2013522585A (ja) * 2010-03-12 2013-06-13 クロメック リミテッド 検出器デバイス、検査装置および方法
US9086361B2 (en) 2010-03-12 2015-07-21 Kromek Limited Detector device, inspection apparatus and method
JP2014230584A (ja) * 2013-05-28 2014-12-11 株式会社東芝 Ｘ線診断装置、医用画像処理装置及び医用画像処理プログラム
US10463329B2 (en) 2013-05-28 2019-11-05 Canon Medical Systems Corporation X-ray diagnostic apparatus and X-ray diagnostic method
JP2014233633A (ja) * 2013-05-30 2014-12-15 株式会社東芝 フォトンカウンティングｘ線コンピュータ断層撮影装置、および医用画像再構成プログラム
JP2014239840A (ja) * 2013-06-12 2014-12-25 株式会社東芝 放射線画像診断装置
US10451568B2 (en) 2014-08-22 2019-10-22 Canon Medical Systems Corporation Photon counting X-ray CT apparatus
US11327031B2 (en) 2014-08-22 2022-05-10 Canon Medical Systems Corporation Photon counting X-ray CT apparatus
JP7185350B1 (ja) * 2021-08-23 2022-12-07 エイト マージン カンパニー，リミテッド 放射線低減フィルター及び放射線低減フィルターの製造方法
KR20230029035A (ko) * 2021-08-23 2023-03-03 (주)에이트마진 방사선 저감 필터 및 방사선 저감 필터의 제조 방법
KR102593937B1 (ko) 2021-08-23 2023-10-25 (주)에이트마진 방사선 저감 필터의 제조 방법

Also Published As

Publication number Publication date
CN102215754B (zh) 2013-06-05
JPWO2009022625A1 (ja) 2010-11-11
JP5367574B2 (ja) 2013-12-11
EP2189115A1 (en) 2010-05-26
EP2189115A4 (en) 2010-08-18
EP3090686A1 (en) 2016-11-09
CN102215754A (zh) 2011-10-12
US20110194668A1 (en) 2011-08-11
US8180016B2 (en) 2012-05-15

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