JP5980531B2 - 実際のフリップ角の決定方法、送信器電圧の調整方法、磁気共鳴装置、コンピュータプログラムおよび電子的に読み取り可能なデータ媒体 - Google Patents

実際のフリップ角の決定方法、送信器電圧の調整方法、磁気共鳴装置、コンピュータプログラムおよび電子的に読み取り可能なデータ媒体 Download PDF

Info

Publication number
JP5980531B2
JP5980531B2 JP2012060185A JP2012060185A JP5980531B2 JP 5980531 B2 JP5980531 B2 JP 5980531B2 JP 2012060185 A JP2012060185 A JP 2012060185A JP 2012060185 A JP2012060185 A JP 2012060185A JP 5980531 B2 JP5980531 B2 JP 5980531B2
Authority
JP
Japan
Prior art keywords
pulse
time
gradient
echo
magnetic field
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.)
Expired - Fee Related
Application number
JP2012060185A
Other languages
English (en)
Japanese (ja)
Other versions
JP2012192185A5 (enExample
JP2012192185A (ja
Inventor
シュテンマー アルト
シュテンマー アルト
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.)
Siemens AG
Original Assignee
Siemens AG
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 Siemens AG filed Critical Siemens AG
Publication of JP2012192185A publication Critical patent/JP2012192185A/ja
Publication of JP2012192185A5 publication Critical patent/JP2012192185A5/ja
Application granted granted Critical
Publication of JP5980531B2 publication Critical patent/JP5980531B2/ja
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • 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
    • G01R33/563—Image enhancement or correction, e.g. subtraction or averaging techniques, e.g. improvement of signal-to-noise ratio and resolution of moving material, e.g. flow contrast angiography
    • G01R33/56375—Intentional motion of the sample during MR, e.g. moving table imaging
    • G01R33/56383—Intentional motion of the sample during MR, e.g. moving table imaging involving motion of the sample as a whole, e.g. multistation MR or MR with continuous table motion
    • 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
    • G01R33/58—Calibration of imaging systems, e.g. using test probes, Phantoms; Calibration objects or fiducial markers such as active or passive RF coils surrounding an MR active material
    • G01R33/583—Calibration of signal excitation or detection systems, e.g. for optimal RF excitation power or frequency
    • G01R33/586—Calibration of signal excitation or detection systems, e.g. for optimal RF excitation power or frequency for optimal flip angle of RF pulses

Landscapes

  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • General Physics & Mathematics (AREA)
  • General Health & Medical Sciences (AREA)
  • Radiology & Medical Imaging (AREA)
  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Vascular Medicine (AREA)
  • Biophysics (AREA)
  • Pathology (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Medical Informatics (AREA)
  • Molecular Biology (AREA)
  • Surgery (AREA)
  • Animal Behavior & Ethology (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Magnetic Resonance Imaging Apparatus (AREA)
JP2012060185A 2011-03-16 2012-03-16 実際のフリップ角の決定方法、送信器電圧の調整方法、磁気共鳴装置、コンピュータプログラムおよび電子的に読み取り可能なデータ媒体 Expired - Fee Related JP5980531B2 (ja)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102011005649A DE102011005649B4 (de) 2011-03-16 2011-03-16 Bestimmung des tatsächlichen Kippwinkels und Justierung der Transmitterspannung bei der MR-Bildgebung eines kontinuierlich verfahrenen Untersuchungsobjekts
DE102011005649.1 2011-03-16

Publications (3)

Publication Number Publication Date
JP2012192185A JP2012192185A (ja) 2012-10-11
JP2012192185A5 JP2012192185A5 (enExample) 2015-03-05
JP5980531B2 true JP5980531B2 (ja) 2016-08-31

Family

ID=46756650

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2012060185A Expired - Fee Related JP5980531B2 (ja) 2011-03-16 2012-03-16 実際のフリップ角の決定方法、送信器電圧の調整方法、磁気共鳴装置、コンピュータプログラムおよび電子的に読み取り可能なデータ媒体

Country Status (4)

Country Link
US (1) US9476958B2 (enExample)
JP (1) JP5980531B2 (enExample)
CN (1) CN102680926B (enExample)
DE (1) DE102011005649B4 (enExample)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8405395B2 (en) * 2010-04-15 2013-03-26 The General Hospital Corporation Method for simultaneous multi-slice magnetic resonance imaging
US8981776B2 (en) 2011-04-22 2015-03-17 The General Hospital Corporation Method for magnetic resonance imaging with controlled aliasing
KR101967244B1 (ko) * 2012-12-05 2019-04-09 삼성전자주식회사 자기 공명 영상 방법 및 장치
DE102013206026B3 (de) 2013-04-05 2014-08-28 Siemens Aktiengesellschaft Optimierte Gradientenecho-Multiecho-Messsequenz
US10132889B2 (en) * 2013-05-22 2018-11-20 General Electric Company System and method for reducing acoustic noise level in MR imaging
DE102014202358B4 (de) * 2014-02-10 2016-07-21 Siemens Healthcare Gmbh Optimierung von Rephasierungs-Gradientenpulsen bei einer simultanen MR-Anregung mehrerer Schichten
DE102014210460B4 (de) * 2014-06-03 2016-02-04 Siemens Aktiengesellschaft Beurteilung von automatisch eingestellten Parametern einer MR-Anlage
WO2016124397A1 (en) * 2015-02-02 2016-08-11 Koninklijke Philips N.V. Mr imaging with b1 mapping
CN107534058A (zh) * 2015-05-22 2018-01-02 国立研究开发法人科学技术振兴机构 脉冲产生装置
CN106918794B (zh) * 2015-12-25 2021-01-08 上海联影医疗科技股份有限公司 磁共振系统及成像的方法
DE102016218110B4 (de) * 2016-09-21 2024-06-27 Siemens Healthineers Ag Verfahren zur Einstellung von Aufnahmeparametern eines Messprotokolls für eine Magnetresonanzanlage, Magnetresonanzanlage, Computerprogramm und elektronisch lesbarer Datenträger
CN106597335B (zh) * 2016-12-30 2019-04-05 上海联影医疗科技有限公司 电压校准方法、磁共振成像方法及系统
CN106872920B (zh) * 2017-01-22 2020-05-05 上海东软医疗科技有限公司 磁共振成像系统射频校准方法及装置
CN107638179B (zh) 2017-08-28 2020-09-04 上海联影医疗科技有限公司 磁共振翻转角的计算方法、系统和计算机可读存储介质
US10622978B1 (en) * 2019-04-05 2020-04-14 IonQ, Inc. Quantum logic gate design and optimization
CN115770031B (zh) * 2022-11-25 2025-08-26 中国科学院深圳先进技术研究院 功能磁共振成像方法、装置、电子设备及存储介质
CN117388782A (zh) * 2023-10-19 2024-01-12 中科微影(泰州)医疗科技有限公司 一种磁共振成像射频功率自动校正方法

Family Cites Families (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL8600712A (nl) * 1986-03-20 1987-10-16 Philips Nv Magnetische resonatiewerkwijze en inrichting ter bepaling van het hoogfrequent vermogen van een hoogfrequent elektromagnetische alfa-puls.
US4983921A (en) 1989-08-18 1991-01-08 The Regents Of The University Of California Rapid calibration of nutation angles in MRI
JP3569066B2 (ja) * 1996-03-21 2004-09-22 株式会社東芝 傾斜磁場パルスの設定方法および磁気共鳴イメージング装置
DE10035319C2 (de) * 2000-07-18 2002-12-05 Universitaetsklinikum Freiburg Verfahren zur Messung der Magnetresonanz (=NMR) mittels Spin-Echos unter Bildung von Hyperechos
JP4515616B2 (ja) * 2000-09-25 2010-08-04 株式会社東芝 磁気共鳴イメージング装置
USRE48347E1 (en) * 2000-12-21 2020-12-08 University Of Virginia Patent Foundation Method and apparatus for spin-echo-train MR imaging using prescribed signal evolutions
US20040189297A1 (en) * 2002-12-13 2004-09-30 Michael Bock Imaging arrangement and process for locally-resolved imaging
DE102005019859A1 (de) 2004-05-11 2005-12-08 Siemens Ag Verfahren zur Durchführung einer Magnetresonanzuntersuchung eines Patienten
US7227356B1 (en) * 2004-09-03 2007-06-05 General Electric Company Method and apparatus of multi-echo MR data acquisition with non-discrete flip angle train
JP4610611B2 (ja) * 2005-04-28 2011-01-12 株式会社日立メディコ 磁気共鳴撮影装置
CN100589756C (zh) * 2005-04-28 2010-02-17 株式会社日立医药 磁共振摄影装置
JP2007090001A (ja) 2005-09-30 2007-04-12 Ge Medical Systems Global Technology Co Llc Ｍｒスキャン方法およびｍｒｉ装置
DE102005061567B3 (de) 2005-12-22 2007-08-23 Siemens Ag Verfahren, Vorrichtung und Computerprogrammprodukt zur Justage der Feldstärke von Hochfrequenzpulsen sowie ein Magnetresonanz-Messsystem dazu
US8594766B2 (en) * 2006-02-13 2013-11-26 Hitachi Medical Corporation Magnetic resonance imaging apparatus and method
JP4864969B2 (ja) * 2006-06-16 2012-02-01 株式会社日立メディコ 磁気共鳴イメージング装置
EP2156206A1 (en) 2007-05-31 2010-02-24 Koninklijke Philips Electronics N.V. Method of automatically acquiring magnetic resonance image data
US8228060B2 (en) * 2007-06-25 2012-07-24 General Electric Company Method and apparatus for generating a flip angle schedule for a spin echo train pulse sequence
EP2063282B1 (en) * 2007-11-22 2013-01-16 Kabushiki Kaisha Toshiba MR imaging of flowing matter using steady state free precession
US7705597B2 (en) * 2008-08-20 2010-04-27 Siemens Aktiengesellschaft Magnetic resonance method and apparatus for generating different weighted images from the same magnetic resonance echo signal evolution
DE102009019596B4 (de) 2009-04-30 2023-08-17 Siemens Healthcare Gmbh Magnetresonanzangiographie mit flusskompensierter und flusssensitiver Bildgebung

Also Published As

Publication number Publication date
DE102011005649B4 (de) 2013-07-04
DE102011005649A1 (de) 2012-09-20
US9476958B2 (en) 2016-10-25
JP2012192185A (ja) 2012-10-11
CN102680926B (zh) 2017-09-29
CN102680926A (zh) 2012-09-19
US20120235684A1 (en) 2012-09-20

Similar Documents

Publication Publication Date Title
JP5980531B2 (ja) 実際のフリップ角の決定方法、送信器電圧の調整方法、磁気共鳴装置、コンピュータプログラムおよび電子的に読み取り可能なデータ媒体
JP2012192185A5 (enExample)
CN102680930B (zh) 用于设置匀场电流和射频中心频率的方法以及磁共振设备
US10488479B2 (en) MRI apparatus and image processing apparatus
KR101663365B1 (ko) 자기 공명 제어 시퀀스 결정
CN104101853B (zh) 用于确定共振频率偏差的方法和磁共振设备
US9910120B2 (en) Method and magnetic resonance apparatus to acquire magnetic resonance data with a diffusion-weighted magnetic resonance sequence
CN103513203B (zh) 在厚片选择性space成像中减少流动伪影的磁共振系统和方法
US20100141252A1 (en) Method to determine a predetermined signal amplitude in mr measurements
US9151816B2 (en) Method and magnetic resonance system for acquiring magnetic resonance data in a predetermined region of an examination subject
US10247798B2 (en) Simultaneous multi-slice MRI measurement
US20140218021A1 (en) Method and magnetic resonance system to acquire mr data and to determine a b1 magnetic field
US20120025825A1 (en) Method and magnetic resonance apparatus for dynamic phase correction in a multi channel rf transmission
JP5142979B2 (ja) 緩和パラメータを空間的に分解して決定するための磁気共鳴方法
US9945924B2 (en) Method and magnetic resonance system for slice-selective magnetic resonance imaging
CN103969608B (zh) 采集磁共振数据和确定b1磁场的方法及相应的磁共振设备
KR101627706B1 (ko) 자기 공명 기법에서 측정 볼륨 내의 검사 대상의 대상-특정 ｂ1 분포를 결정하는 방법, 자기 공명 시스템, 및 컴퓨터 판독가능한 기록 매체
KR20180007327A (ko) 자기 공명 기술에서의 아티팩트 감소
CN114325525B (zh) 用于产生用于磁共振检查的b0图的方法和磁共振设备
US9335394B2 (en) Method and magnetic resonance scanner for hyperintense display of areas in the vicinity of dipole fields
US10386436B2 (en) Method and apparatus for accelerated simultaneous multislice magnetic resonance data acquisition
JPWO2003037183A1 (ja) 磁気共鳴イメージング装置

Legal Events

Date Code Title Description
A521 Written amendment

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20140924

A521 Written amendment

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20150119

A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20150119

A977 Report on retrieval

Free format text: JAPANESE INTERMEDIATE CODE: A971007

Effective date: 20151022

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20151208

A521 Written amendment

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20160126

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: 20160628

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20160727

R150 Certificate of patent or registration of utility model

Ref document number: 5980531

Country of ref document: JP

Free format text: JAPANESE INTERMEDIATE CODE: R150

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

LAPS Cancellation because of no payment of annual fees