JPH03139327A - 動きの核磁気共鳴画像を形成する装置 - Google Patents

動きの核磁気共鳴画像を形成する装置

Info

Publication number
JPH03139327A
JPH03139327A JP2205350A JP20535090A JPH03139327A JP H03139327 A JPH03139327 A JP H03139327A JP 2205350 A JP2205350 A JP 2205350A JP 20535090 A JP20535090 A JP 20535090A JP H03139327 A JPH03139327 A JP H03139327A
Authority
JP
Japan
Prior art keywords
gradient
magnetic field
sample
inspection beam
inspection
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.)
Granted
Application number
JP2205350A
Other languages
English (en)
Japanese (ja)
Other versions
JPH0433454B2 (https=
Inventor
Harvey E Cline
ハーベイ・エリス・クライン
Christopher J Hardy
クリストファー・ジャドソン・ハーディー
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.)
General Electric Co
Original Assignee
General Electric Co
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 General Electric Co filed Critical General Electric Co
Publication of JPH03139327A publication Critical patent/JPH03139327A/ja
Publication of JPH0433454B2 publication Critical patent/JPH0433454B2/ja
Granted legal-status Critical Current

Links

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
    • G01R33/567—Image enhancement or correction, e.g. subtraction or averaging techniques, e.g. improvement of signal-to-noise ratio and resolution gated by physiological signals, i.e. synchronization of acquired MR data with periodical motion of an object of interest, e.g. monitoring or triggering system for cardiac or respiratory gating
    • G01R33/5676—Gating or triggering based on an MR signal, e.g. involving one or more navigator echoes for motion monitoring and correction
    • 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
    • G01R33/4836—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 using an RF pulse being spatially selective in more than one spatial dimension, e.g. a 2D pencil-beam excitation pulse
    • 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]
    • G01R33/446—Multifrequency selective RF pulses, e.g. multinuclear acquisition mode
    • 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
    • G01R33/4818—MR characterised by data acquisition along a specific k-space trajectory or by the temporal order of k-space coverage, e.g. centric or segmented coverage of k-space
    • G01R33/4824—MR characterised by data acquisition along a specific k-space trajectory or by the temporal order of k-space coverage, e.g. centric or segmented coverage of k-space using a non-Cartesian trajectory
    • 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
    • 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
    • G01R33/56308—Characterization of motion or flow; Dynamic imaging

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • General Physics & Mathematics (AREA)
  • Physiology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Optics & Photonics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Biophysics (AREA)
  • Cardiology (AREA)
  • Power Engineering (AREA)
  • Pulmonology (AREA)
  • General Health & Medical Sciences (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Radiology & Medical Imaging (AREA)
  • Signal Processing (AREA)
  • Magnetic Resonance Imaging Apparatus (AREA)
JP2205350A 1989-08-11 1990-08-03 動きの核磁気共鳴画像を形成する装置 Granted JPH03139327A (ja)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US07/392,315 US4995394A (en) 1989-08-11 1989-08-11 Fast NMR cardiac profile imaging
US392,315 1996-02-22

Publications (2)

Publication Number Publication Date
JPH03139327A true JPH03139327A (ja) 1991-06-13
JPH0433454B2 JPH0433454B2 (https=) 1992-06-03

Family

ID=23550105

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2205350A Granted JPH03139327A (ja) 1989-08-11 1990-08-03 動きの核磁気共鳴画像を形成する装置

Country Status (3)

Country Link
US (1) US4995394A (https=)
EP (1) EP0412819A3 (https=)
JP (1) JPH03139327A (https=)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006175223A (ja) * 2004-12-20 2006-07-06 General Electric Co <Ge> 並列ｒｆ送信による空間−スペクトル励起のための方法及びシステム

Families Citing this family (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5195525A (en) * 1990-11-26 1993-03-23 Pelc Norbert J Noninvasive myocardial motion analysis using phase contrast mri maps of myocardial velocity
US5192909A (en) * 1991-01-07 1993-03-09 General Electric Company Spectroscopic localization using pinwheel nmr excitation pulses
US5133357A (en) * 1991-02-07 1992-07-28 General Electric Company Quantitative measurement of blood flow using cylindrically localized fourier velocity encoding
US5329925A (en) * 1991-11-14 1994-07-19 Picker International, Inc. Reduced scan time cardiac gated magnetic resonance cine and flow imaging
US5318025A (en) * 1992-04-01 1994-06-07 General Electric Company Tracking system to monitor the position and orientation of a device using multiplexed magnetic resonance detection
US5271400A (en) * 1992-04-01 1993-12-21 General Electric Company Tracking system to monitor the position and orientation of a device using magnetic resonance detection of a sample contained within the device
US5307808A (en) * 1992-04-01 1994-05-03 General Electric Company Tracking system and pulse sequences to monitor the position of a device using magnetic resonance
US5353795A (en) * 1992-12-10 1994-10-11 General Electric Company Tracking system to monitor the position of a device using multiplexed magnetic resonance detection
US5532595A (en) * 1994-04-18 1996-07-02 Picker International, Inc. Three-dimensional spiral echo volume imaging
US6404194B1 (en) * 1994-08-05 2002-06-11 The Board Of Trustees Of The Leland Stanford Junior University Three dimensional magnetic resonance imaging using spiral trajectories in k-space
US5800354A (en) * 1994-11-23 1998-09-01 U.S. Phillips Corporation Method of and device for magnetic resonance imaging
DE69632302T2 (de) * 1995-07-20 2005-06-23 Philips Intellectual Property & Standards Gmbh Verfahren und gerät zur bilderzeugung durch magnetische resonanz eines gekrümmten teils eines körpers
US5602891A (en) * 1995-11-13 1997-02-11 Beth Israel Imaging apparatus and method with compensation for object motion
US5903664A (en) * 1996-11-01 1999-05-11 General Electric Company Fast segmentation of cardiac images
US6032069A (en) * 1998-05-01 2000-02-29 Uab Research Foundation Physiological triggering device for high-field magnetic-resonance instrumentation
US6452391B1 (en) * 1999-06-11 2002-09-17 General Electric Company Quiet mode magnetic resonance imaging system and method
US6288541B1 (en) 1999-08-23 2001-09-11 General Electric Company MRI measurement of blood vessel wall compliance
US6801800B2 (en) * 1999-11-29 2004-10-05 Kabushiki Kaisha Toshiba MR imaging using ECG-prep scan
JP4632535B2 (ja) * 2000-12-27 2011-02-16 株式会社東芝 Ｍｒｉ装置
US7157908B1 (en) * 2002-12-10 2007-01-02 Fonar Corporation Magnetic resonance imaging using bessel functions
US7750632B2 (en) * 2007-03-22 2010-07-06 University Of Pittsburgh - Of The Commonwealth System Of Higher Education Method for producing a magnetic resonance image of an object having a short T2 relaxation time
US9995810B2 (en) * 2008-06-20 2018-06-12 Weinberg Medical Physics Inc Apparatus and method for decreasing bio-effects of magnetic gradient field gradients
US9594135B2 (en) 2009-09-29 2017-03-14 Hitachi, Ltd. Magnetic resonance imaging apparatus and method for adjusting excitation region
US10172521B2 (en) 2013-07-08 2019-01-08 General Electric Company Systems and methods for tracking imaging attenuators
US9594144B2 (en) 2014-04-23 2017-03-14 General Electric Company Low-noise magnetic resonance imaging using low harmonic pulse sequences
CN119001811B (zh) * 2024-10-23 2025-04-18 上海云鱼智能科技有限公司 一种无源核子剖面成像装置、测量方法及机器人

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6486951A (en) * 1987-07-27 1989-03-31 Gen Electric Multi-dimensional selective nmr-exciting method using single rf pulse

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4516582A (en) * 1983-05-02 1985-05-14 General Electric Company NMR blood flow imaging
US4739766A (en) * 1986-08-18 1988-04-26 Duke University NMR blood vessel imaging method and apparatus
US4857846A (en) * 1988-03-31 1989-08-15 The Regents Of The University Of California Rapid MRI using multiple receivers producing multiply phase-encoded data derived from a single NMR response

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6486951A (en) * 1987-07-27 1989-03-31 Gen Electric Multi-dimensional selective nmr-exciting method using single rf pulse

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006175223A (ja) * 2004-12-20 2006-07-06 General Electric Co <Ge> 並列ｒｆ送信による空間−スペクトル励起のための方法及びシステム

Also Published As

Publication number Publication date
JPH0433454B2 (https=) 1992-06-03
US4995394A (en) 1991-02-26
EP0412819A3 (en) 1991-07-24
EP0412819A2 (en) 1991-02-13

Similar Documents

Publication Publication Date Title
JPH03139327A (ja) 動きの核磁気共鳴画像を形成する装置
US6377048B1 (en) Magnetic resonance imaging device for operation in external static magnetic fields
US6397094B1 (en) MR method utilizing microcoils situated in the examination zone
US4521733A (en) NMR Imaging of the transverse relaxation time using multiple spin echo sequences
US6704594B1 (en) Magnetic resonance imaging device
KR880001364B1 (ko) 핵자기 공명 영상 데이타 발생방법
US6275722B1 (en) Methods and apparatus for magnetic resonance imaging with RF coil sweeping
EP0471501A2 (en) NMR methods and apparatus for angiography
JPH0616768B2 (ja) 高速スピンエコーｎｍｒスキャンでの多重画像取得方式
JPH0263437A (ja) ３次元核磁気共鳴造影図を作る方法と装置
US20100256478A1 (en) Systems and methods for phase encode placement
RU2686879C2 (ru) Мр томография с нулевой эхо-задержкой
EP0624339B1 (en) An apparatus for and method of exciting magnetic resonance in a limited subregion of an examination region
US5192909A (en) Spectroscopic localization using pinwheel nmr excitation pulses
US4567440A (en) Vivo P-31 NMR imaging of phosphorus metabolites
JP3656654B2 (ja) 移動流体の速度および加速度分布の同時検出方法
US4429277A (en) Nuclear magnetic resonance apparatus utilizing multiple magnetic fields
JP3656652B2 (ja) 移動流体の複数の運動成分の同時検出方法
JPH0685768B2 (ja) 核磁気共鳴を用いた検査方法
JPS58223048A (ja) 磁気共鳴励起領域選択方法、および、該方法が実施し得る磁気共鳴イメージング装置
US6734672B2 (en) Method for the automatic measurement of acoustic resonance of a magnetic resonance tomography apparatus
US20040217760A1 (en) Bayesian methods for flow parameter estimates in magnetic resonance imaging
JP3656653B2 (ja) 移動流体の複数の速度成分の同時検出方法
JP4125134B2 (ja) 磁気共鳴アコーストグラフィ
JPS63194646A (ja) 磁気共振断層写真検査方法と装置

Legal Events

Date Code Title Description
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

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20080603

Year of fee payment: 16

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20090603

Year of fee payment: 17

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20100603

Year of fee payment: 18

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20100603

Year of fee payment: 18

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20110603

Year of fee payment: 19

EXPY Cancellation because of completion of term
FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20110603

Year of fee payment: 19