JP6467420B2 - ヘリカルコンピュータ断層撮影における最適ｓｎｒを達成するための調整可能なボウタイフィルタ及びボウタイフィルタを用いて調整する方法 - Google Patents

ヘリカルコンピュータ断層撮影における最適ｓｎｒを達成するための調整可能なボウタイフィルタ及びボウタイフィルタを用いて調整する方法 Download PDF

Info

Publication number
JP6467420B2
JP6467420B2 JP2016533970A JP2016533970A JP6467420B2 JP 6467420 B2 JP6467420 B2 JP 6467420B2 JP 2016533970 A JP2016533970 A JP 2016533970A JP 2016533970 A JP2016533970 A JP 2016533970A JP 6467420 B2 JP6467420 B2 JP 6467420B2
Authority
JP
Japan
Prior art keywords
filter
filter element
ray
filter assembly
ray beam
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
JP2016533970A
Other languages
English (en)
Japanese (ja)
Other versions
JP2016527983A5 (enExample
JP2016527983A (ja
Inventor
ケーラー，トーマス
プロクサ，ローラント
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.)
Koninklijke Philips NV
Original Assignee
Koninklijke Philips NV
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 Koninklijke Philips NV filed Critical Koninklijke Philips NV
Publication of JP2016527983A publication Critical patent/JP2016527983A/ja
Publication of JP2016527983A5 publication Critical patent/JP2016527983A5/ja
Application granted granted Critical
Publication of JP6467420B2 publication Critical patent/JP6467420B2/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
    • A61B6/40—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
    • A61B6/02—Arrangements for diagnosis sequentially in different planes; Stereoscopic radiation diagnosis
    • A61B6/03—Computed tomography [CT]
    • A61B6/032—Transmission computed tomography [CT]

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Medical Informatics (AREA)
  • Optics & Photonics (AREA)
  • Biomedical Technology (AREA)
  • Biophysics (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Veterinary Medicine (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Public Health (AREA)
  • Pathology (AREA)
  • Radiology & Medical Imaging (AREA)
  • Physics & Mathematics (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Molecular Biology (AREA)
  • Surgery (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Pulmonology (AREA)
  • Theoretical Computer Science (AREA)
  • Apparatus For Radiation Diagnosis (AREA)
JP2016533970A 2013-08-13 2014-08-05 ヘリカルコンピュータ断層撮影における最適ｓｎｒを達成するための調整可能なボウタイフィルタ及びボウタイフィルタを用いて調整する方法 Active JP6467420B2 (ja)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US201361865273P 2013-08-13 2013-08-13
US61/865,273 2013-08-13
PCT/IB2014/063700 WO2015022599A1 (en) 2013-08-13 2014-08-05 Adjustable bow-tie filter for achieving optimal snr in helical computed tomography

Publications (3)

Publication Number Publication Date
JP2016527983A JP2016527983A (ja) 2016-09-15
JP2016527983A5 JP2016527983A5 (enExample) 2018-03-01
JP6467420B2 true JP6467420B2 (ja) 2019-02-13

Family

ID=51662156

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2016533970A Active JP6467420B2 (ja) 2013-08-13 2014-08-05 ヘリカルコンピュータ断層撮影における最適ｓｎｒを達成するための調整可能なボウタイフィルタ及びボウタイフィルタを用いて調整する方法

Country Status (5)

Country Link
US (1) US9901314B2 (enExample)
EP (1) EP3033011B1 (enExample)
JP (1) JP6467420B2 (enExample)
CN (1) CN105491950B (enExample)
WO (1) WO2015022599A1 (enExample)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104207799A (zh) * 2014-08-29 2014-12-17 沈阳东软医疗系统有限公司 一种ct扫描设备中形状过滤器的控制方法及装置
JP6885803B2 (ja) * 2017-06-27 2021-06-16 ゼネラル・エレクトリック・カンパニイ 放射線撮影装置及び撮影方法
EP3678547A1 (en) 2017-09-08 2020-07-15 Koninklijke Philips N.V. Dynamic bowtie filter and methods of using the same
EP3626175A1 (en) 2018-09-19 2020-03-25 Koninklijke Philips N.V. Beam shaping filter for cbct

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3265035B2 (ja) * 1993-03-08 2002-03-11 東芝アイティー・コントロールシステム株式会社 コンピュータ断層撮影装置
JP2002102217A (ja) * 2000-09-28 2002-04-09 Ge Medical Systems Global Technology Co Llc Ｘ線ｃｔシステム、ガントリ装置、コンソール端末及びその制御方法及び記憶媒体
JP4041025B2 (ja) * 2003-07-15 2008-01-30 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線分布調整フィルタ装置およびそれを用いたｘ線ｃｔ装置
US6990171B2 (en) 2003-10-27 2006-01-24 General Electric Company System and method of determining a user-defined region-of-interest of an imaging subject for x-ray flux management control
JP2005349083A (ja) * 2004-06-14 2005-12-22 Toshiba Corp Ｘ線コンピュータ断層撮影装置
US7254216B2 (en) 2005-07-29 2007-08-07 General Electric Company Methods and apparatus for filtering a radiation beam and CT imaging systems using same
JP4975347B2 (ja) * 2006-03-30 2012-07-11 株式会社東芝 Ｘ線ｃｔ装置
JP5670742B2 (ja) * 2007-12-28 2015-02-18 コーニンクレッカ フィリップス エヌ ヴェ コンピュータ断層撮影システム用のフィルタ組立体
JP5605985B2 (ja) * 2008-09-26 2014-10-15 株式会社東芝 Ｘ線コンピュータ断層撮影装置
DE102009012631B4 (de) * 2009-03-11 2011-07-28 Bayer Schering Pharma Aktiengesellschaft, 13353 Filter für einen Computertomographen sowie Computertomograph
EP2496142B1 (en) * 2009-11-03 2016-12-14 Koninklijke Philips N.V. Computed tomography apparatus
CN103124520B (zh) * 2010-09-30 2016-07-13 皇家飞利浦电子股份有限公司 用于计算机断层摄影（ct）的动态滤波器
US9392984B2 (en) 2011-06-17 2016-07-19 The Board Of Trustees Of The Leland Stanford Junior University Computed tomography system with dynamic bowtie filter

Also Published As

Publication number Publication date
CN105491950B (zh) 2021-02-19
US20160174917A1 (en) 2016-06-23
US9901314B2 (en) 2018-02-27
WO2015022599A1 (en) 2015-02-19
EP3033011B1 (en) 2019-06-19
JP2016527983A (ja) 2016-09-15
CN105491950A (zh) 2016-04-13
EP3033011A1 (en) 2016-06-22

Similar Documents

Publication Publication Date Title
EP1646316B1 (en) Computed tomography scanner with large gantry bore
US8180017B2 (en) Stereo tube attenuation filter
US8483363B2 (en) Movable wedge for improved image quality in 3D X-ray imaging
JP3864106B2 (ja) 透過ｘ線データ獲得装置およびｘ線断層像撮影装置
JP6313168B2 (ja) Ｘ線ｃｔ装置、画像処理装置及び画像処理プログラム
US10702234B2 (en) Image combining using images with different focal-spot sizes
US10531844B1 (en) Narrow beam CT using a 3D fluence modulation and scatter shield system
JP2009125250A (ja) Ｘ線ｃｔ装置
JP6467420B2 (ja) ヘリカルコンピュータ断層撮影における最適ｓｎｒを達成するための調整可能なボウタイフィルタ及びボウタイフィルタを用いて調整する方法
US11350892B2 (en) Collimator structure for an imaging system
US6542571B2 (en) Method of reducing artifacts in object images
JP3977624B2 (ja) Ｘ線コンピュータ断層撮影装置
JP2015019863A (ja) 放射線断層撮影装置及びプログラム
JP3746148B2 (ja) 放射線照射位置調節方法および放射線照射・検出装置並びに放射線断層撮影装置
Altunbas et al. Effects of scattered radiation and beam quality on low contrast performance in cone beam breast CT
Tang et al. X-ray flat-panel imager (FPI)-based cone-beam volume CT (CBVCT) under a circle-plus-two-arc data acquisition orbit
JP2007190415A (ja) 管電流調節方法および装置並びにｘ線ｃｔ装置

Legal Events

Date Code Title Description
A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20160216

A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20170802

A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20180119

A871 Explanation of circumstances concerning accelerated examination

Free format text: JAPANESE INTERMEDIATE CODE: A871

Effective date: 20180119

A975 Report on accelerated examination

Free format text: JAPANESE INTERMEDIATE CODE: A971005

Effective date: 20180301

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20180306

A977 Report on retrieval

Free format text: JAPANESE INTERMEDIATE CODE: A971007

Effective date: 20180309

A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20180529

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20180717

A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20181016

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: 20181218

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20190111

R150 Certificate of patent or registration of utility model

Ref document number: 6467420

Country of ref document: JP

Free format text: JAPANESE INTERMEDIATE CODE: R150

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250