WO2009014166A1 - Ｘ線ｃｔ装置 - Google Patents

Ｘ線ｃｔ装置 Download PDF

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Publication number
WO2009014166A1
WO2009014166A1 PCT/JP2008/063249 JP2008063249W WO2009014166A1 WO 2009014166 A1 WO2009014166 A1 WO 2009014166A1 JP 2008063249 W JP2008063249 W JP 2008063249W WO 2009014166 A1 WO2009014166 A1 WO 2009014166A1
Authority
WO
WIPO (PCT)
Prior art keywords
ray
subject
tube
das
acquired
Prior art date
Application number
PCT/JP2008/063249
Other languages
English (en)
French (fr)
Inventor
Takayuki Kadomura
Taiga Goto
Original Assignee
Hitachi Medical Corporation
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hitachi Medical Corporation filed Critical Hitachi Medical Corporation
Priority to JP2009524504A priority Critical patent/JP5426379B2/ja
Publication of WO2009014166A1 publication Critical patent/WO2009014166A1/ja

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Classifications

    • 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
    • A61B6/02—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
    • A61B6/06—Diaphragms
    • 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
    • A61B6/48—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

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Medical Informatics (AREA)
  • Radiology & Medical Imaging (AREA)
  • Molecular Biology (AREA)
  • Biophysics (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Optics & Photonics (AREA)
  • Pathology (AREA)
  • Physics & Mathematics (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Surgery (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Pulmonology (AREA)
  • Theoretical Computer Science (AREA)
  • Apparatus For Radiation Diagnosis (AREA)

Abstract

　管電圧を切り替えている間に被検体に照射されるX線の被曝を低減し得るマルチエネルギー型X線CT装置を提供する。 　寝台に載せられた被検体にX線ビームを照射するX線管1と、X線管1と対向配置され前記被検体を透過したX線を検出する検出器3と、前記被検体の体軸を中心にX線管1と検出器3が円周方向に回転しながらX線ビームを照射して前記被検体のX線透過データを検出器3で取得するDAS10と、取得された被検体のX線透過データから断層画像を再構成処理する再構成演算器11と、DAS10によって取得される間に、X線管1に印加される電圧を切り替えるX線制御器6と、X線管1と前記被検体の間に配置され、X線制御器6によってX線管1に印加される電圧が切り替えられたX線ビームのエネルギーを変更するX線フィルタ2と、DAS10によって取得される間に、X線フィルタ2を駆動させるX線フィルタ制御器7と、を備える。
PCT/JP2008/063249 2007-07-25 2008-07-24 Ｘ線ｃｔ装置 WO2009014166A1 (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2009524504A JP5426379B2 (ja) 2007-07-25 2008-07-24 Ｘ線ｃｔ装置

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2007192718 2007-07-25
JP2007-192718 2007-07-25

Publications (1)

Publication Number Publication Date
WO2009014166A1 true WO2009014166A1 (ja) 2009-01-29

Family

ID=40281414

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2008/063249 WO2009014166A1 (ja) 2007-07-25 2008-07-24 Ｘ線ｃｔ装置

Country Status (2)

Country Link
JP (1) JP5426379B2 (ja)
WO (1) WO2009014166A1 (ja)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012034924A (ja) * 2010-08-10 2012-02-23 Toshiba Corp Ｘ線ｃｔ装置の撮影条件処理方法及びｘ線ｃｔ装置
WO2011126308A3 (en) * 2010-04-06 2012-03-08 Samsung Electronics Co., Ltd. System and method processing images in multi-energy x-ray system
CN103841896A (zh) * 2012-10-02 2014-06-04 株式会社东芝 X射线摄像装置、楔形滤波器装置及楔形滤波器控制方法
CN105142526A (zh) * 2013-04-16 2015-12-09 株式会社东芝 X射线ct装置
WO2017133366A1 (zh) * 2016-02-01 2017-08-10 上海优医基医疗影像设备有限公司 X射线多能成像系统及其成像控制方法

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003325504A (ja) * 2002-04-16 2003-11-18 Ge Medical Systems Global Technology Co Llc 多重エネルギ撮像の方法及び装置
JP2006271437A (ja) * 2005-03-28 2006-10-12 Aloka Co Ltd Ｘ線骨密度測定装置

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5661774A (en) * 1996-06-27 1997-08-26 Analogic Corporation Dual energy power supply

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003325504A (ja) * 2002-04-16 2003-11-18 Ge Medical Systems Global Technology Co Llc 多重エネルギ撮像の方法及び装置
JP2006271437A (ja) * 2005-03-28 2006-10-12 Aloka Co Ltd Ｘ線骨密度測定装置

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011126308A3 (en) * 2010-04-06 2012-03-08 Samsung Electronics Co., Ltd. System and method processing images in multi-energy x-ray system
CN102711614A (zh) * 2010-04-06 2012-10-03 三星电子株式会社 在多能x射线系统中处理图像的系统和方法
JP2012034924A (ja) * 2010-08-10 2012-02-23 Toshiba Corp Ｘ線ｃｔ装置の撮影条件処理方法及びｘ線ｃｔ装置
CN103841896A (zh) * 2012-10-02 2014-06-04 株式会社东芝 X射线摄像装置、楔形滤波器装置及楔形滤波器控制方法
CN105142526A (zh) * 2013-04-16 2015-12-09 株式会社东芝 X射线ct装置
WO2017133366A1 (zh) * 2016-02-01 2017-08-10 上海优医基医疗影像设备有限公司 X射线多能成像系统及其成像控制方法

Also Published As

Publication number Publication date
JP5426379B2 (ja) 2014-02-26
JPWO2009014166A1 (ja) 2010-10-07

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