JP6139821B2 - Ｘ線ｃｔ装置 - Google Patents

Ｘ線ｃｔ装置 Download PDF

Info

Publication number
JP6139821B2
JP6139821B2 JP2012064692A JP2012064692A JP6139821B2 JP 6139821 B2 JP6139821 B2 JP 6139821B2 JP 2012064692 A JP2012064692 A JP 2012064692A JP 2012064692 A JP2012064692 A JP 2012064692A JP 6139821 B2 JP6139821 B2 JP 6139821B2
Authority
JP
Japan
Prior art keywords
ray
unit
reconstruction function
reconstruction
predetermined range
Prior art date
Legal status (The legal status 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 status listed.)
Active
Application number
JP2012064692A
Other languages
English (en)
Japanese (ja)
Other versions
JP2013192827A5 (enExample
JP2013192827A (ja
Inventor
成臣 秋野
成臣 秋野
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Canon Medical Systems Corp
Original Assignee
Toshiba Medical Systems Corp
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 Toshiba Medical Systems Corp filed Critical Toshiba Medical Systems Corp
Priority to JP2012064692A priority Critical patent/JP6139821B2/ja
Priority to US13/845,951 priority patent/US9226715B2/en
Priority to CN201310091266.7A priority patent/CN103315758B/zh
Publication of JP2013192827A publication Critical patent/JP2013192827A/ja
Publication of JP2013192827A5 publication Critical patent/JP2013192827A5/ja
Application granted granted Critical
Publication of JP6139821B2 publication Critical patent/JP6139821B2/ja
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

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
    • A61B6/02—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
    • A61B6/52—Devices using data or image processing specially adapted for radiation diagnosis
    • A61B6/5205—Devices using data or image processing specially adapted for radiation diagnosis involving processing of raw data to produce diagnostic data
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T11/00—2D [Two Dimensional] image generation
    • G06T11/003—Reconstruction from projections, e.g. tomography
    • G06T11/006—Inverse problem, transformation from projection-space into object-space, e.g. transform methods, back-projection, algebraic methods

Landscapes

  • Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Medical Informatics (AREA)
  • Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Animal Behavior & Ethology (AREA)
  • Biophysics (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Optics & Photonics (AREA)
  • Pathology (AREA)
  • Radiology & Medical Imaging (AREA)
  • Biomedical Technology (AREA)
  • Veterinary Medicine (AREA)
  • Molecular Biology (AREA)
  • Surgery (AREA)
  • High Energy & Nuclear Physics (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • General Physics & Mathematics (AREA)
  • Pulmonology (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • Algebra (AREA)
  • Mathematical Analysis (AREA)
  • Mathematical Optimization (AREA)
  • Mathematical Physics (AREA)
  • Pure & Applied Mathematics (AREA)
  • Apparatus For Radiation Diagnosis (AREA)
JP2012064692A 2012-03-22 2012-03-22 Ｘ線ｃｔ装置 Active JP6139821B2 (ja)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP2012064692A JP6139821B2 (ja) 2012-03-22 2012-03-22 Ｘ線ｃｔ装置
US13/845,951 US9226715B2 (en) 2012-03-22 2013-03-18 X-ray CT apparatus
CN201310091266.7A CN103315758B (zh) 2012-03-22 2013-03-21 X射线ct装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2012064692A JP6139821B2 (ja) 2012-03-22 2012-03-22 Ｘ線ｃｔ装置

Publications (3)

Publication Number Publication Date
JP2013192827A JP2013192827A (ja) 2013-09-30
JP2013192827A5 JP2013192827A5 (enExample) 2015-05-07
JP6139821B2 true JP6139821B2 (ja) 2017-05-31

Family

ID=49185012

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2012064692A Active JP6139821B2 (ja) 2012-03-22 2012-03-22 Ｘ線ｃｔ装置

Country Status (3)

Country Link
US (1) US9226715B2 (enExample)
JP (1) JP6139821B2 (enExample)
CN (1) CN103315758B (enExample)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105873519B (zh) * 2014-01-20 2018-10-16 株式会社日立制作所 X射线ct装置、图像处理装置及图像重构方法
JP2017051395A (ja) * 2015-09-09 2017-03-16 富士フイルム株式会社 放射線画像処理装置、方法およびプログラム
JP6814008B2 (ja) * 2016-09-29 2021-01-13 ゼネラル・エレクトリック・カンパニイ 放射線断層撮影装置及びその制御プログラム

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08215189A (ja) 1995-02-10 1996-08-27 Toshiba Medical Eng Co Ltd Ｘ線ｃｔ装置及びその画像再構成法
JP4408976B2 (ja) 1998-12-16 2010-02-03 株式会社東芝 Ｘ線ｃｔ装置
US6493416B1 (en) * 2001-11-21 2002-12-10 Ge Medical Systems Global Technology Company, Llc Method and apparatus for noise reduction in computed tomographic systems
JP4439202B2 (ja) * 2003-05-09 2010-03-24 株式会社東芝 Ｘ線コンピュータ断層撮影装置及び画像ノイズシミュレーション装置
US7376255B2 (en) * 2004-06-23 2008-05-20 General Electric Company System and method for image reconstruction
JP4549783B2 (ja) * 2004-09-01 2010-09-22 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 画像処理装置及びプログラム並びにｘ線ｃｔ装置
JP4865291B2 (ja) * 2005-10-11 2012-02-01 株式会社日立メディコ Ｘ線撮像装置
JP5199541B2 (ja) * 2006-01-31 2013-05-15 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
US7542541B2 (en) * 2006-10-20 2009-06-02 General Electric Company View weighting methods and apparatus
JP5416912B2 (ja) * 2007-06-07 2014-02-12 株式会社東芝 データ処理装置および医用診断装置
JP2009125250A (ja) * 2007-11-22 2009-06-11 Hitachi Medical Corp Ｘ線ｃｔ装置
US8135186B2 (en) * 2008-01-25 2012-03-13 Purdue Research Foundation Method and system for image reconstruction
DE102008053110A1 (de) * 2008-06-27 2009-12-31 Siemens Aktiengesellschaft Verfahren zur Rekonstruktion von CT-Bilddaten
US7885371B2 (en) * 2008-08-28 2011-02-08 General Electric Company Method and system for image reconstruction
WO2010038536A1 (ja) * 2008-09-30 2010-04-08 株式会社 日立メディコ Ｘ線ｃｔ装置
WO2011158893A1 (ja) * 2010-06-17 2011-12-22 株式会社 日立メディコ Ｘ線ｃt装置、及びその制御方法
CN102947861B (zh) * 2010-06-21 2016-06-29 皇家飞利浦电子股份有限公司 用于在低剂量计算机断层摄影中降低噪声的方法和系统
US8712134B2 (en) * 2011-10-18 2014-04-29 Kabushiki Kaisha Toshiba Method and system for expanding axial coverage in iterative reconstruction in computer tomography (CT)

Also Published As

Publication number Publication date
US20130251093A1 (en) 2013-09-26
US9226715B2 (en) 2016-01-05
CN103315758A (zh) 2013-09-25
JP2013192827A (ja) 2013-09-30
CN103315758B (zh) 2015-07-15

Similar Documents

Publication Publication Date Title
US8818065B2 (en) Methods and apparatus for scatter correction for CBCT system and cone-beam image reconstruction
EP2490593B1 (en) Acquisition protocol assessment apparatus
KR101576703B1 (ko) 화상 처리 장치, 화상 처리 방법 및 컴퓨터 판독 가능 저장 매체
JP5028528B2 (ja) Ｘ線ｃｔ装置
JP6293713B2 (ja) 画像処理装置、放射線断層撮影装置並びにプログラム
JP6181045B2 (ja) Ｘ線ｃｔ装置及び画像再構成方法
JP4646810B2 (ja) 断層撮影像の再構成方法及び断層撮影装置
US10019795B2 (en) Focal spot de-blurring
JP2007054372A (ja) Ｘ線ｃｔ装置
JP2013013722A (ja) Ｘ線撮像における散乱補正の方法及びシステム
JP2010167165A (ja) Ｘ線ｃｔ装置
JP6139821B2 (ja) Ｘ線ｃｔ装置
JP2005095397A (ja) Ｘ線散乱線成分の補正方法及びそのプログラム並びにｘ線ｃｔ装置
JPWO2016132880A1 (ja) 演算装置、ｘ線ｃｔ装置、及び画像再構成方法
JP6665119B2 (ja) Ｘ線ｃｔ装置及び画像処理装置
WO2017130657A1 (ja) Ｘ線ｃｔ装置、撮影条件設定方法及び撮影条件設定プログラム
JP2015019863A (ja) 放射線断層撮影装置及びプログラム
JP2013027520A (ja) 画像生成方法、画像生成装置及びプログラム並びにｘ線ｃｔ装置
JP2010022692A (ja) Ｘ線ｃｔ装置
JP5854658B2 (ja) Ｘ線ｃｔ装置
Cha et al. Optimization of X-ray image acquisition and reconstruction for a C-arm CBCT system with a flat-panel detector
JP5220580B2 (ja) Ｘ線ｃｔ装置
JP6073607B2 (ja) Ｘ線ｃｔ装置、ｘ線ｃｔ装置の画像表示プログラム
JP2015123302A (ja) 医用画像診断装置及び画像処理装置
JP2024037308A (ja) 医用画像処理装置および医用画像処理方法

Legal Events

Date Code Title Description
A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20150320

A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20150320

A977 Report on retrieval

Free format text: JAPANESE INTERMEDIATE CODE: A971007

Effective date: 20160121

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20160223

A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20160425

A711 Notification of change in applicant

Free format text: JAPANESE INTERMEDIATE CODE: A711

Effective date: 20160527

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20160913

A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20161114

TRDD Decision of grant or rejection written
A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 20170404

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20170428

R150 Certificate of patent or registration of utility model

Ref document number: 6139821

Country of ref document: JP

Free format text: JAPANESE INTERMEDIATE CODE: R150

S533 Written request for registration of change of name

Free format text: JAPANESE INTERMEDIATE CODE: R313533

R350 Written notification of registration of transfer

Free format text: JAPANESE INTERMEDIATE CODE: R350