JP6867256B2 - 磁気共鳴撮像装置及び画像処理方法 - Google Patents

磁気共鳴撮像装置及び画像処理方法 Download PDF

Info

Publication number
JP6867256B2
JP6867256B2 JP2017162615A JP2017162615A JP6867256B2 JP 6867256 B2 JP6867256 B2 JP 6867256B2 JP 2017162615 A JP2017162615 A JP 2017162615A JP 2017162615 A JP2017162615 A JP 2017162615A JP 6867256 B2 JP6867256 B2 JP 6867256B2
Authority
JP
Japan
Prior art keywords
image
magnetic resonance
phase
resonance imaging
low
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
JP2017162615A
Other languages
English (en)
Japanese (ja)
Other versions
JP2019037575A (ja
JP2019037575A5 (https=
Inventor
公輔 伊藤
公輔 伊藤
眞次 黒川
眞次 黒川
瀧澤　将宏
将宏 瀧澤
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.)
Hitachi Ltd
Original Assignee
Hitachi Ltd
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 Ltd filed Critical Hitachi Ltd
Priority to JP2017162615A priority Critical patent/JP6867256B2/ja
Priority to PCT/JP2018/025583 priority patent/WO2019039112A1/ja
Priority to US16/629,479 priority patent/US11080825B2/en
Publication of JP2019037575A publication Critical patent/JP2019037575A/ja
Publication of JP2019037575A5 publication Critical patent/JP2019037575A5/ja
Application granted granted Critical
Publication of JP6867256B2 publication Critical patent/JP6867256B2/ja
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T5/00—Image enhancement or restoration
    • G06T5/70—Denoising; Smoothing
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T3/00—Geometric image transformations in the plane of the image
    • G06T3/40—Scaling of whole images or parts thereof, e.g. expanding or contracting
    • G06T3/4053—Scaling of whole images or parts thereof, e.g. expanding or contracting based on super-resolution, i.e. the output image resolution being higher than the sensor resolution
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/05—Detecting, measuring or recording for diagnosis by means of electric currents or magnetic fields; Measuring using microwaves or radio waves
    • A61B5/055—Detecting, measuring or recording for diagnosis by means of electric currents or magnetic fields; Measuring using microwaves or radio waves involving electronic [EMR] or nuclear [NMR] magnetic resonance, e.g. magnetic resonance imaging
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R33/00—Arrangements or instruments for measuring magnetic variables
    • G01R33/20—Arrangements or instruments for measuring magnetic variables involving magnetic resonance
    • G01R33/44—Arrangements or instruments for measuring magnetic variables involving magnetic resonance using nuclear magnetic resonance [NMR]
    • G01R33/48—NMR imaging systems
    • G01R33/483—NMR imaging systems with selection of signals or spectra from particular regions of the volume, e.g. in vivo spectroscopy
    • G01R33/4833—NMR imaging systems with selection of signals or spectra from particular regions of the volume, e.g. in vivo spectroscopy using spatially selective excitation of the volume of interest, e.g. selecting non-orthogonal or inclined slices
    • G01R33/4835—NMR imaging systems with selection of signals or spectra from particular regions of the volume, e.g. in vivo spectroscopy using spatially selective excitation of the volume of interest, e.g. selecting non-orthogonal or inclined slices of multiple slices
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R33/00—Arrangements or instruments for measuring magnetic variables
    • G01R33/20—Arrangements or instruments for measuring magnetic variables involving magnetic resonance
    • G01R33/44—Arrangements or instruments for measuring magnetic variables involving magnetic resonance using nuclear magnetic resonance [NMR]
    • G01R33/48—NMR imaging systems
    • G01R33/54—Signal processing systems, e.g. using pulse sequences ; Generation or control of pulse sequences; Operator console
    • G01R33/56—Image enhancement or correction, e.g. subtraction or averaging techniques, e.g. improvement of signal-to-noise ratio and resolution
    • G01R33/561—Image enhancement or correction, e.g. subtraction or averaging techniques, e.g. improvement of signal-to-noise ratio and resolution by reduction of the scanning time, i.e. fast acquiring systems, e.g. using echo-planar pulse sequences
    • G01R33/5611—Parallel magnetic resonance imaging, e.g. sensitivity encoding [SENSE], simultaneous acquisition of spatial harmonics [SMASH], unaliasing by Fourier encoding of the overlaps using the temporal dimension [UNFOLD], k-t-broad-use linear acquisition speed-up technique [k-t-BLAST], k-t-SENSE
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T7/00—Image analysis
    • G06T7/0002—Inspection of images, e.g. flaw detection
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R33/00—Arrangements or instruments for measuring magnetic variables
    • G01R33/20—Arrangements or instruments for measuring magnetic variables involving magnetic resonance
    • G01R33/44—Arrangements or instruments for measuring magnetic variables involving magnetic resonance using nuclear magnetic resonance [NMR]
    • G01R33/48—NMR imaging systems
    • G01R33/54—Signal processing systems, e.g. using pulse sequences ; Generation or control of pulse sequences; Operator console
    • G01R33/56—Image enhancement or correction, e.g. subtraction or averaging techniques, e.g. improvement of signal-to-noise ratio and resolution
    • G01R33/561—Image enhancement or correction, e.g. subtraction or averaging techniques, e.g. improvement of signal-to-noise ratio and resolution by reduction of the scanning time, i.e. fast acquiring systems, e.g. using echo-planar pulse sequences
    • G01R33/5615—Echo train techniques involving acquiring plural, differently encoded, echo signals after one RF excitation, e.g. using gradient refocusing in echo planar imaging [EPI], RF refocusing in rapid acquisition with relaxation enhancement [RARE] or using both RF and gradient refocusing in gradient and spin echo imaging [GRASE]
    • G01R33/5617—Echo train techniques involving acquiring plural, differently encoded, echo signals after one RF excitation, e.g. using gradient refocusing in echo planar imaging [EPI], RF refocusing in rapid acquisition with relaxation enhancement [RARE] or using both RF and gradient refocusing in gradient and spin echo imaging [GRASE] using RF refocusing, e.g. RARE
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T2207/00—Indexing scheme for image analysis or image enhancement
    • G06T2207/10—Image acquisition modality
    • G06T2207/10072—Tomographic images
    • G06T2207/10088—Magnetic resonance imaging [MRI]
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T2207/00—Indexing scheme for image analysis or image enhancement
    • G06T2207/20—Special algorithmic details
    • G06T2207/20172—Image enhancement details
    • G06T2207/20182—Noise reduction or smoothing in the temporal domain; Spatio-temporal filtering

Landscapes

  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Theoretical Computer Science (AREA)
  • General Health & Medical Sciences (AREA)
  • Radiology & Medical Imaging (AREA)
  • Biophysics (AREA)
  • Pathology (AREA)
  • Molecular Biology (AREA)
  • Surgery (AREA)
  • Animal Behavior & Ethology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Biomedical Technology (AREA)
  • Medical Informatics (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • Quality & Reliability (AREA)
  • Signal Processing (AREA)
  • Optics & Photonics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Magnetic Resonance Imaging Apparatus (AREA)
JP2017162615A 2017-08-25 2017-08-25 磁気共鳴撮像装置及び画像処理方法 Active JP6867256B2 (ja)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP2017162615A JP6867256B2 (ja) 2017-08-25 2017-08-25 磁気共鳴撮像装置及び画像処理方法
PCT/JP2018/025583 WO2019039112A1 (ja) 2017-08-25 2018-07-05 磁気共鳴撮像装置及び画像処理方法
US16/629,479 US11080825B2 (en) 2017-08-25 2018-07-05 Magnetic resonance imaging apparatus and image processing method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2017162615A JP6867256B2 (ja) 2017-08-25 2017-08-25 磁気共鳴撮像装置及び画像処理方法

Publications (3)

Publication Number Publication Date
JP2019037575A JP2019037575A (ja) 2019-03-14
JP2019037575A5 JP2019037575A5 (https=) 2020-03-05
JP6867256B2 true JP6867256B2 (ja) 2021-04-28

Family

ID=65438753

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2017162615A Active JP6867256B2 (ja) 2017-08-25 2017-08-25 磁気共鳴撮像装置及び画像処理方法

Country Status (3)

Country Link
US (1) US11080825B2 (https=)
JP (1) JP6867256B2 (https=)
WO (1) WO2019039112A1 (https=)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20220092785A1 (en) * 2018-12-18 2022-03-24 Agfa Nv Method of decomposing a radiographic image into sub-images of different types

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3161750B2 (ja) 1991-06-05 2001-04-25 株式会社日立製作所 磁気共鳴診断装置および画像データ処理方法
DE10128534C2 (de) * 2001-06-13 2003-04-30 Siemens Ag Verfahren zur Bilderzeugung mittels magnetischer Resonanz mit mehreren Empfangsantennen
JP2004154401A (ja) * 2002-11-07 2004-06-03 National Cardiovascular Center Ｍｒ位相画像の再構成方法、ｍｒ強度画像の再構成方法及びその方法を用いた磁気共鳴イメージング装置
JP4980662B2 (ja) * 2006-06-30 2012-07-18 株式会社日立メディコ 磁気共鳴イメージング装置
US8284463B2 (en) * 2007-12-28 2012-10-09 Brother Kogyo Kabushiki Kaisha Image reading apparatus
JP4929237B2 (ja) * 2008-06-23 2012-05-09 キヤノン株式会社 画像処理装置及び画像処理方法
JP2010109448A (ja) * 2008-10-28 2010-05-13 Canon Inc 画像処理方法及び画像読取装置
JP5536358B2 (ja) * 2009-03-31 2014-07-02 株式会社日立メディコ 磁気共鳴イメージング装置及び感度補正方法
CN102422216B (zh) * 2009-05-15 2014-10-22 株式会社尼康 测距装置以及摄像装置
CN102780532B (zh) * 2011-05-09 2016-06-08 华为技术有限公司 信道测量的方法及装置
CN103764025B (zh) 2011-10-12 2015-12-09 株式会社日立制作所 磁共振成像装置以及磁化率强调图像生成方法
JP6711622B2 (ja) * 2013-07-12 2020-06-17 シャープ株式会社 端末装置、方法および集積回路
JP6456287B2 (ja) * 2013-07-12 2019-01-23 シャープ株式会社 端末装置、方法および集積回路
KR102149448B1 (ko) * 2014-02-21 2020-08-28 삼성전자주식회사 이미지를 처리하기 위한 전자 장치 및 방법
JP6618754B2 (ja) 2015-10-06 2019-12-11 キヤノンメディカルシステムズ株式会社 磁気共鳴イメージング装置、画像処理装置、及び画像処理方法
CN108462552B (zh) * 2017-02-17 2022-04-12 华为技术有限公司 一种多码字传输方法及装置
US11063652B2 (en) * 2017-03-07 2021-07-13 Apple Inc. Techniques for improved beam management

Also Published As

Publication number Publication date
US11080825B2 (en) 2021-08-03
WO2019039112A1 (ja) 2019-02-28
US20200126188A1 (en) 2020-04-23
JP2019037575A (ja) 2019-03-14

Similar Documents

Publication Publication Date Title
JP5984258B2 (ja) 磁気共鳴イメージング装置及び画像処理装置
JP5048052B2 (ja) 磁気共鳴イメージング装置および磁気共鳴イメージング方法
JP6333293B2 (ja) 金属耐性ｍｒ画像化
EP2411829B1 (en) Mr imaging using parallel signal acquisition
JP6243522B2 (ja) 正則化された検出再構成を使用するマルチエコーディクソン水−脂肪分離及びｂ０歪補正による並列ｍｒｉ
JP6445470B2 (ja) パラレルのマルチスライスｍｒ画像法
JP4152381B2 (ja) 磁気共鳴イメージング装置
JP6595393B2 (ja) 磁気共鳴イメージング装置、及び、画像処理方法
CN107209238B (zh) 具有对边带伪迹的抑制的并行多切片mr成像
JP6762284B2 (ja) 磁気共鳴イメージング装置およびノイズ除去方法
JP2016533838A (ja) 金属耐性ｍｒイメージング
WO2011080693A1 (en) Water -fat separation in mri using partial echoes at different echo times
CN103282790B (zh) 快速双对比度mr成像
JP4202855B2 (ja) 磁気共鳴イメージング装置
JP6867256B2 (ja) 磁気共鳴撮像装置及び画像処理方法
JP2006130285A (ja) 磁気共鳴イメージング装置
JP6820876B2 (ja) 磁気共鳴撮影装置、感度分布算出方法、及び、感度分布算出プログラム
EP2581756A1 (en) MR imaging using parallel signal acquisition
US11226387B2 (en) Magnetic resonance imaging apparatus and image processing apparatus
JP5487253B2 (ja) 磁気共鳴イメージング装置
JP6850224B2 (ja) 磁気共鳴イメージング装置及び信号抑制方法
JP4906952B2 (ja) 核磁気共鳴撮影装置
JP2022045474A (ja) 磁気共鳴撮像装置、及び、画像生成方法

Legal Events

Date Code Title Description
A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20200120

A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20200120

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20210112

A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20210225

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: 20210330

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20210408

R150 Certificate of patent or registration of utility model

Ref document number: 6867256

Country of ref document: JP

Free format text: JAPANESE INTERMEDIATE CODE: R150

S111 Request for change of ownership or part of ownership

Free format text: JAPANESE INTERMEDIATE CODE: R313111

R350 Written notification of registration of transfer

Free format text: JAPANESE INTERMEDIATE CODE: R350

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

S111 Request for change of ownership or part of ownership

Free format text: JAPANESE INTERMEDIATE CODE: R313111

R350 Written notification of registration of transfer

Free format text: JAPANESE INTERMEDIATE CODE: R350

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250