JP2001503662A - 空間調波の同時取得法(smash):高周波コイル配列を用いた超高速映像法 - Google Patents
空間調波の同時取得法(smash):高周波コイル配列を用いた超高速映像法Info
- Publication number
- JP2001503662A JP2001503662A JP52262798A JP52262798A JP2001503662A JP 2001503662 A JP2001503662 A JP 2001503662A JP 52262798 A JP52262798 A JP 52262798A JP 52262798 A JP52262798 A JP 52262798A JP 2001503662 A JP2001503662 A JP 2001503662A
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- 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
- G01R33/28—Details of apparatus provided for in groups G01R33/44 - G01R33/64
- G01R33/38—Systems for generation, homogenisation or stabilisation of the main or gradient magnetic field
- G01R33/381—Systems for generation, homogenisation or stabilisation of the main or gradient magnetic field using electromagnets
- G01R33/3815—Systems for generation, homogenisation or stabilisation of the main or gradient magnetic field using electromagnets with superconducting coils, e.g. power supply therefor
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- 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
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- 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
- G01R33/5608—Data processing and visualization specially adapted for MR, e.g. for feature analysis and pattern recognition on the basis of measured MR data, segmentation of measured MR data, edge contour detection on the basis of measured MR data, for enhancing measured MR data in terms of signal-to-noise ratio by means of noise filtering or apodization, for enhancing measured MR data in terms of resolution by means for deblurring, windowing, zero filling, or generation of gray-scaled images, colour-coded images or images displaying vectors instead of pixels
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- 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
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- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Radiology & Medical Imaging (AREA)
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- High Energy & Nuclear Physics (AREA)
- Magnetic Resonance Imaging Apparatus (AREA)
Abstract
Description
Claims (1)
- 【特許請求の範囲】 1.NMRスピン調整及び測定の多重サイクル中にMRIを捕捉することによっ てMRで体の領域を映像化する方法にして、 i) 1個のスピン調整サイクル中に、異なる空間感度を有する複数の表面コイ ルにおいて、同時にNMR RF測定信号応答を受信し; ii) 複数のコイルに受信された該NMR RF測定信号応答を結合して複数 の複合NMR信号集合(各々の集合は異なる空間情報を含有する)を得; iii) 追加のスピン調整サイクルにおいて該受信及び結合段階を繰り返して 、少なくとも1個の該複合NMR信号集合によって増加させられたデータ集合を 形成し;そして iv) 該データ集合からMR映像を形成する 段階を包含することを特徴とする方法。 2.該受信及び結合段階が所与の視野及び空間分解能の映像を形成するために実 施され、少なくとも1個のスピン調整サイクルを削減することによって映像取得 時間を削減することを特徴とする、請求項1に記載の方法。 3.該受信及び結合段階が映像を形成するために実施され、少なくとも視野、空 間分解能及び取得時間のうち一つが向上することを特徴とする、請求項1に記載 の方法。 4.結合段階によって測定信号応答が線形結合に結合されることを特徴とする、 請求項1に記載の方法。 5.線形結合は複素係数を用いて実施されることを特徴とする、請求項4に記載 の方法。 6.信号応答を結合する段階によって、映像化された視野の空間調波に近似した 複合空間感度が得られることを特徴とする、請求項1、4、5のいずれかに記載 の方法。 7.空間調波複合信号が、磁場勾配において省略された増分に相当するデータ線 の代用となることを特徴とする、請求項6に記載の方法。 8.表面コイルにおける受信段階が、2次元コイル配列、N×Mコイル配列、ラ ップアラウンドコイル配列及び拡張格子コイル配列のうち少なくとも1個におけ る受信を含有することを特徴とする、請求項6に記載の方法。 9.該複数コイルの感度をマッピングして変換を決定して、受信NMR RF測 定信号応答を該複合NMR信号に結合する段階を更に包含する、請求項1に記載 の方法。 10.スピン調整及び測定サイクルが、スピンエコー映像法、勾配エコー映像法 及びBURST式映像法のものから選ばれることを特徴とする、請求項6に記載 の方法。 11.複合NMR信号応答集合に結合する段階を、非フーリエ空間分布に相当す る信号集合に結合し、処理段階を対応の非フーリエ変換に適用してMR映像を得 ることを特徴とする、請求項1に記載の方法。 12.複合NMR信号応答集合に結合する段階を、空間的に直交するデータ集合 を形成する小波に結合し、処理段階を小波変換に適用して映像を得ることを特徴 とする、請求項1に記載の方法。 13.領域中に磁場を設定する磁石、領域中の核スピンを調整する手段及び調整 したスピンからRF信号を収集する手段を有する磁気共鳴映像(MRI)装置に して、該磁石及び該手段が反復サイクル内において実施されてスピンデータを収 集し該領域内の物質の映像を構成する装置であって、該RF信号を収集する手段 が 配列を形成する複数の表面コイルにして、各々が異なる空間感度を有するコイ ル、及び 該配列の複数の個々のコイルからの信号を異なる加重値で結合して、該領域か らのスピンデータの直交空間表示に相当する複数の信号集合にする手段 を包含することを特徴とする装置。 14.該結合手段が、スピンデータが収集されるにつれて同時に該信号を結合す ることを特徴とする、請求項13に記載の装置。 15.該空間表示が空間調波であることを特徴とする、請求項13に記載の装置 。 16.該空間表示が非フーリエ表示を含有することを特徴とする、請求項13に 記載の装置。 17.該非フーリエ表示が小波であることを特徴とする、請求項16に記載の装 置。 18.該加重値を決定する手段を更に包含し、この手段によって決定された加重 値に従って該結合手段による結合がなされることを特徴とする、請求項13に記 載の装置。 19.該決定手段が、該空間表示を形成するために用いる、複数ある映像領域の それぞれについて加重値を蓄積した表を包含することを特徴とする、請求項18 に記載の装置。 20.該複数の表面コイルが、約20〜50cmの範囲に渡る配列を形成し、配 列中の各コイルは約20cmより小さい大きさを有することを特徴とする、請求 項13に記載の装置。 21.該複数の表面コイルが線形配列を形成することを特徴とする、請求項13 に記載の装置。 22.領域中に磁場を設定する磁石、領域中の核スピンを調整する手段及び調整 したスピンからRF信号を収集する手段を有する磁気共鳴映像(MRI)装置に して、該磁石及び該手段が反復サイクル内において実施されてスピンデータを収 集し該領域内の物質の映像を構成する装置において、該RF信号を収集する手段 が 配列を形成する複数の表面コイルにして、各々が異なる空間感度を有するコイ ル、及び 該配列の複数の個々のコイルからの信号を異なる加重値で結合して、該領域か らのスピンデータの直交空間表示に相当する複数の信号集合にする手段 を包含することを特徴とする改良。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US08/746,358 US5910728A (en) | 1996-11-12 | 1996-11-12 | Simultaneous acquisition of spatial harmonics (SMASH): ultra-fast imaging with radiofrequency coil arrays |
US08/746,358 | 1996-11-12 | ||
PCT/US1997/020068 WO1998021600A1 (en) | 1996-11-12 | 1997-11-05 | Simultaeous acquisition of spatial harmonics (smash): ultra-fast imaging with radiofrequency coil arrays |
Publications (3)
Publication Number | Publication Date |
---|---|
JP2001503662A true JP2001503662A (ja) | 2001-03-21 |
JP2001503662A5 JP2001503662A5 (ja) | 2005-07-14 |
JP4044145B2 JP4044145B2 (ja) | 2008-02-06 |
Family
ID=25000500
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP52262798A Expired - Fee Related JP4044145B2 (ja) | 1996-11-12 | 1997-11-05 | 空間調波の同時取得法(smash):高周波コイル配列を用いた超高速映像法 |
Country Status (7)
Country | Link |
---|---|
US (1) | US5910728A (ja) |
EP (2) | EP1243938A3 (ja) |
JP (1) | JP4044145B2 (ja) |
AU (1) | AU5428698A (ja) |
DE (1) | DE69722827T2 (ja) |
ES (1) | ES2201331T3 (ja) |
WO (1) | WO1998021600A1 (ja) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2002102199A (ja) * | 2000-09-25 | 2002-04-09 | Ge Medical Systems Global Technology Co Llc | 磁気共鳴信号受信方法および装置並びに磁気共鳴撮影装置 |
JP2004504908A (ja) * | 2000-07-31 | 2004-02-19 | コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ | 高速ダイナミック画像を形成する磁気共鳴方法 |
JP2004504910A (ja) * | 2000-07-31 | 2004-02-19 | コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ | 高速動的撮像を形成する磁気共鳴方法 |
JP2004358221A (ja) * | 2003-05-30 | 2004-12-24 | Ge Medical Systems Global Technology Co Llc | 並列式mriを用いた撮像を高速化させるための方法及びシステム |
JP2011505955A (ja) * | 2007-12-12 | 2011-03-03 | コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ | 超高磁場mri用の送受信コイル |
Families Citing this family (142)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6289232B1 (en) * | 1998-03-30 | 2001-09-11 | Beth Israel Deaconess Medical Center, Inc. | Coil array autocalibration MR imaging |
US6223065B1 (en) * | 1998-04-15 | 2001-04-24 | Medrad, Inc. | Automatic coil element selection in large MRI coil arrays |
US6144873A (en) * | 1998-04-17 | 2000-11-07 | Board Of Trustees Of The Leland Stanford Junior University | Method of efficient data encoding in dynamic magnetic resonance imaging |
US6134465A (en) * | 1998-06-12 | 2000-10-17 | General Electric Company | Method for reducing artifacts in MR image acquired with phased array surface coil |
EP1014102A3 (en) | 1998-12-24 | 2001-10-04 | Marconi Electronic Systems Limited | Multislice magnetic resonance imaging using an array of receiving coils |
DE19901171C2 (de) * | 1999-01-14 | 2001-12-13 | Axel Haase | Verfahren und Vorrichtung zum Gewinnen von Daten für Magnetresonanz-Bildgebung |
MXPA01010656A (es) * | 1999-04-22 | 2002-06-04 | Univ Johns Hopkins | Rastreo del movimiento cardiaco usando imagenes de resonancia magnetica de fase armonica de cine (marp). |
WO2000072036A1 (en) * | 1999-05-20 | 2000-11-30 | Koninklijke Philips Electronics N.V. | Magnetic resonance imaging method with sub-sampling |
WO2000072034A1 (en) * | 1999-05-20 | 2000-11-30 | Koninklijke Philips Electronics N.V. | Magnetic resonance imaging method with sub-sampling |
US6680610B1 (en) * | 1999-05-24 | 2004-01-20 | Walid E. Kyriakos | Apparatus and method for parallel MR data acquisition and parallel image reconstruction from multiple receiver coil arrays for fast MRI |
WO2000072050A1 (en) * | 1999-05-24 | 2000-11-30 | Kyriakos Walid E | Method and apparatus for parallel data acquisition from a mri coil array |
JP4632535B2 (ja) | 2000-12-27 | 2011-02-16 | 株式会社東芝 | Mri装置 |
US6801800B2 (en) * | 1999-11-29 | 2004-10-05 | Kabushiki Kaisha Toshiba | MR imaging using ECG-prep scan |
US6907280B2 (en) * | 1999-12-02 | 2005-06-14 | The General Hospital Corporation | Method and apparatus for objectively measuring pain, pain treatment and other related techniques |
WO2001040827A1 (en) * | 1999-12-03 | 2001-06-07 | Johns Hopkins University | Apparatus and methods for spatial encoded mri |
JP3952247B2 (ja) * | 1999-12-08 | 2007-08-01 | 株式会社日立メディコ | 核磁気共鳴撮影装置 |
US6597935B2 (en) | 2000-02-10 | 2003-07-22 | The Johns Hopkins University | Method for harmonic phase magnetic resonance imaging |
GB2360094A (en) * | 2000-03-06 | 2001-09-12 | Marconi Caswell Ltd | RF screens for MRI |
US6611143B2 (en) | 2000-03-14 | 2003-08-26 | Kabushiki Kaisha Toshiba | MRI apparatus generating odd and/or even echo images with sensitivity distribution of coils |
US6717406B2 (en) | 2000-03-14 | 2004-04-06 | Beth Israel Deaconess Medical Center, Inc. | Parallel magnetic resonance imaging techniques using radiofrequency coil arrays |
WO2001073463A1 (en) * | 2000-03-24 | 2001-10-04 | Koninklijke Philips Electronics N.V. | Magnetic resonance imaging method with sub-sampling |
US6469505B1 (en) * | 2000-03-31 | 2002-10-22 | Ge Medical Systems Global Technology Co., Llc | Method and apparatus to reduce perturbation field effects in MR images by restricting the region of interest |
JP3983170B2 (ja) * | 2000-11-24 | 2007-09-26 | コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ | 垂直磁場のmri装置においてサブサンプリングを用いてmri画像を取得する方法 |
DE10059772A1 (de) * | 2000-11-30 | 2002-06-13 | Philips Corp Intellectual Pty | MR-Bildrekonstruktion |
US6477470B2 (en) | 2000-12-01 | 2002-11-05 | Pgs Americas, Inc. | Method and system for deghosting |
US6556009B2 (en) * | 2000-12-11 | 2003-04-29 | The United States Of America As Represented By The Department Of Health And Human Services | Accelerated magnetic resonance imaging using a parallel spatial filter |
US6823205B1 (en) * | 2001-02-08 | 2004-11-23 | Boston University Radiology Associates | Synthetic images for a magnetic resonance imaging scanner using linear combination of source images to generate contrast and spatial navigation |
DE10106830C2 (de) * | 2001-02-14 | 2003-01-16 | Siemens Ag | Verfahren zur Bilderzeugung mittels magnetischer Resonanz mit mehreren unabhängigen Empfangsantennen |
WO2002077659A1 (en) | 2001-03-23 | 2002-10-03 | Koninklijke Philips Electronics N.V. | Magnetic resonance imaging method for an angulated cut plane |
US6771070B2 (en) * | 2001-03-30 | 2004-08-03 | Johns Hopkins University | Apparatus for magnetic resonance imaging having a planar strip array antenna including systems and methods related thereto |
US6841998B1 (en) | 2001-04-06 | 2005-01-11 | Mark Griswold | Magnetic resonance imaging method and apparatus employing partial parallel acquisition, wherein each coil produces a complete k-space datasheet |
US6738501B2 (en) * | 2001-04-13 | 2004-05-18 | Ge Medical Systems Global Technology Co., Llc | Adaptive data differentiation and selection from multi-coil receiver to reduce artifacts in reconstruction |
US6549799B2 (en) | 2001-04-18 | 2003-04-15 | Sunnybrook And Women's College Health Sciences Centre | Concurrent MRI of multiple objects |
US6675034B2 (en) * | 2001-04-19 | 2004-01-06 | Sunnybrook And Women's Health Sciences Centre | Magnetic resonance imaging using direct, continuous real-time imaging for motion compensation |
US6915152B2 (en) | 2001-04-19 | 2005-07-05 | General Electric Company | Method for MR imaging with an array of RF coils |
GB2374672A (en) * | 2001-04-20 | 2002-10-23 | Marconi Medical Systems Uk Ltd | Magnetic Resonance Imaging |
US7283859B2 (en) * | 2001-04-20 | 2007-10-16 | Brigham And Womens' Hospital, Inc. | Artifact suppression in dynamic magnetic resonance imaging |
DE10119660B4 (de) * | 2001-04-20 | 2006-01-05 | Siemens Ag | Verfahren zur schnellen Gewinnung eines Magnetresonanzbildes |
GB2374674A (en) * | 2001-04-20 | 2002-10-23 | Marconi Medical Systems Uk Ltd | Magnetic Resonance Imaging |
US6714010B2 (en) * | 2001-04-20 | 2004-03-30 | Brigham And Women's Hospital, Inc. | Combining unfold with parallel magnetic resonance imaging |
GB2380549A (en) * | 2001-04-20 | 2003-04-09 | Marconi Medical Systems Uk Ltd | Magnetic Resonance Imaging |
GB2374673A (en) * | 2001-04-20 | 2002-10-23 | Marconi Medical Systems Uk Ltd | Magnetic Resonance Imaging |
US6559642B2 (en) * | 2001-05-09 | 2003-05-06 | Ge Medical Systems Global Technology Company, Llc | Calibration method for use with sensitivity encoding MRI acquisition |
US6975115B1 (en) * | 2001-06-08 | 2005-12-13 | Ge Medical Systems Global Technology Company, Llc | Coil arrays for parallel imaging in magnetic resonance imaging |
US6900635B1 (en) | 2001-06-08 | 2005-05-31 | General Electric Company | Head RF quadrature coil array for parallel imaging |
US6930480B1 (en) | 2001-06-08 | 2005-08-16 | General Electric Company | Head coil arrays for parallel imaging in magnetic resonance imaging |
DE60235763D1 (de) * | 2001-08-21 | 2010-05-06 | Koninkl Philips Electronics Nv | Magnetresonanzgerät mit anregungsantennensystem |
DE10144654B4 (de) * | 2001-09-11 | 2005-02-17 | Siemens Ag | Gerät und Verfahren zur Magnet-Resonanz-Bildgebung unter Verwendung einer verbesserten parallelen Akquisition |
DE10148445A1 (de) * | 2001-10-01 | 2003-04-30 | Siemens Ag | Signalauswerteverfahren für Magnetresonanz-Empfangssignale und hiermit korrespondierende Empfangsanordnung |
DE10152734B4 (de) * | 2001-10-25 | 2005-12-29 | Siemens Ag | Gerät und Verfahren zur Magnet-Resonanz-Bildgebung bei gleichzeitiger Messung zweier benachbarter Schichten |
US6584337B2 (en) | 2001-11-21 | 2003-06-24 | General Electric Company | Method and system for extended volume imaging using MRI |
US7061240B2 (en) | 2001-11-26 | 2006-06-13 | Koninklijke Philips Electronics N.V. | Magnetic resonance imaging method with reduced acoustic noise |
US6492814B1 (en) | 2001-12-21 | 2002-12-10 | General Electric Company | Self localizing receive coils for MR |
DE10163815A1 (de) * | 2001-12-22 | 2003-07-03 | Philips Intellectual Property | Paralleles MR-Bildgebungsverfahren |
WO2003058283A1 (en) * | 2001-12-31 | 2003-07-17 | The Johns Hopkins University School Of Medicine | Mri tunable antenna and system |
US6683454B2 (en) * | 2002-03-28 | 2004-01-27 | Ge Medical Systems Global Technology Company, Llc | Shifting of artifacts by reordering of k-space |
AU2003212591A1 (en) * | 2002-04-08 | 2003-10-20 | Koninklijke Philips Electronics N.V. | Data-processing to form a compound object data set from a plurality of basis datasets |
CN1653348B (zh) | 2002-05-13 | 2012-08-08 | 皇家飞利浦电子股份有限公司 | 产生时间连续的磁共振图像的磁共振成像方法 |
WO2003096049A1 (en) * | 2002-05-13 | 2003-11-20 | Koninklijke Philips Electronics N.V. | Magnetic resonance imaging method with accelerated data acquisition |
US7298143B2 (en) * | 2002-05-13 | 2007-11-20 | Koninklijke Philips Electronics N.V. | Reduction of susceptibility artifacts in subencoded single-shot magnetic resonance imaging |
WO2003096050A1 (en) * | 2002-05-13 | 2003-11-20 | Koninklijke Philips Electronics N.V. | Magnetic resonance imaging method |
US6963768B2 (en) * | 2002-05-16 | 2005-11-08 | General Electric Company | Whole body MRI scanning with moving table and interactive control |
US6707300B2 (en) * | 2002-05-17 | 2004-03-16 | Ge Medical Systems Global Technology Co., Llc | Gradient non-linearity compensation in moving table MRI |
DE10226488A1 (de) | 2002-06-14 | 2003-12-24 | Philips Intellectual Property | MR-Anordnung mit unterschiedlich optimierten Hochfrequenzspulenarrays |
US6791321B2 (en) * | 2002-06-18 | 2004-09-14 | Koninklijke Philips Electronics N.V. | Birdcage coils for simultaneous acquisition of spatial harmonics |
DE10231061A1 (de) * | 2002-07-10 | 2004-01-22 | Philips Intellectual Property & Standards Gmbh | Verfahren und System zur Verbesserung des Informationsgehaltes in einem Bild |
JP3869337B2 (ja) * | 2002-08-20 | 2007-01-17 | 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 | 磁気共鳴撮影装置 |
US7009396B2 (en) | 2002-09-12 | 2006-03-07 | General Electric Company | Method and system for extended volume imaging using MRI with parallel reception |
US6833700B2 (en) * | 2002-09-13 | 2004-12-21 | General Electric Company | Method and apparatus for reconstruction of images in parallel MRI systems |
US6980002B1 (en) | 2002-11-04 | 2005-12-27 | General Electric Company | Integrated cervical-thoracic-lumbar spine MRI array coil |
WO2004048991A1 (en) * | 2002-11-26 | 2004-06-10 | Koninklijke Philips Electronics N.V. | Determination of subencoding mri coil sensitivities in a lower order magnetic field |
US7429860B2 (en) * | 2003-01-28 | 2008-09-30 | University Of Southern California | Noise reduction for spectroscopic signal processing |
DE10313004B3 (de) * | 2003-03-24 | 2005-01-20 | Siemens Ag | Verfahren zur Modenbildung, Verfahren zur Modenbereitstellung und Empfangseinheit für ein Magnetresonanzgerät |
DE10318682B4 (de) * | 2003-04-24 | 2011-12-29 | Peter M. Jakob | Beschleunigte Magnet-Resonanz-Bildgebung im Rahmen der parallelen Akquisition von MRT-Daten |
WO2004104610A2 (en) * | 2003-05-15 | 2004-12-02 | Case Western Reserve University | Optimized magnetic resonance data acquisition |
US6781374B1 (en) | 2003-05-27 | 2004-08-24 | General Electric Company | Systems and methods for simultaneous acquisition of spatial harmonics |
US6919722B2 (en) * | 2003-10-09 | 2005-07-19 | Ge Medical Systems Global Technology Company, Llc | Image quality improvement for SENSE with low signal regions |
US7109710B2 (en) * | 2003-10-17 | 2006-09-19 | General Electric Company | Method and apparatus to improve signal-to-noise ratio without compromising field-of-view for simultaneous MR data acquisition by an array of RF coils of an MR scanner |
CN1910470A (zh) * | 2004-01-15 | 2007-02-07 | 皇家飞利浦电子股份有限公司 | 用于并行成像的线圈灵敏度估计 |
WO2005081973A2 (en) * | 2004-02-22 | 2005-09-09 | Medrad, Inc. | Head coil and neurovascular array for parallel imaging capable magnetic resonance systems |
WO2006003553A1 (en) * | 2004-06-28 | 2006-01-12 | Koninklijke Philips Electronics N.V. | Parallel magnetic resonance imaging |
US20060050981A1 (en) * | 2004-09-03 | 2006-03-09 | Feng Huang | Technique for parallel MRI imaging (k-t grappa) |
US7397242B2 (en) | 2005-10-27 | 2008-07-08 | Wisconsin Alumni Research Foundation | Parallel magnetic resonance imaging method using a radial acquisition trajectory |
US7583082B1 (en) * | 2006-04-19 | 2009-09-01 | University Of Virginia Patent Foundation | Partially parallel magnetic resonance imaging using arbitrary k-space trajectories with image reconstruction based on successive convolution operations |
US7279893B1 (en) * | 2006-04-20 | 2007-10-09 | General Electric Company | Receiver channel data combining in parallel mr imaging |
US7592807B2 (en) * | 2006-04-25 | 2009-09-22 | The Board Of Trustees Of The Leland Stanford Junior University | Maximum likelihood estimator in the presence of non-identically distributed noise for decomposition of chemical species in MRI |
US7486074B2 (en) * | 2006-04-25 | 2009-02-03 | The Board Of Trustees Of The Leland Stanford Junior University | Self-calibration methods for parallel imaging and multipoint water-fat separation methods |
US7468605B2 (en) * | 2006-04-25 | 2008-12-23 | The Board Of Trustees Of The Leland Stanford Junior University | Simultaneous chemical species separation and T2* measurement using MRI |
US7592810B2 (en) | 2006-04-25 | 2009-09-22 | The Board Of Trustees Of The Leland Stanford Junior University | MRI methods for combining separate species and quantifying a species |
US7486073B2 (en) | 2006-04-25 | 2009-02-03 | The Board Of Trustees Of The Leland Stanford Junior University | Sliding window reconstruction and phase/field map updating for dynamic chemical shift imaging |
US7508211B2 (en) * | 2006-04-25 | 2009-03-24 | The Board Of Trustees Of The Leland Stanford Junior University | Regularized species separation |
US7741842B2 (en) * | 2006-04-25 | 2010-06-22 | The Board Of Trustees Of The Leland Stanford Junior University | Calibration maps for parallel imaging free of chemical shift artifact |
US7336074B2 (en) * | 2006-05-05 | 2008-02-26 | Quality Electrodynamics | Active decoupling of MRI RF transmit coils |
US7439739B2 (en) * | 2006-07-11 | 2008-10-21 | The Board Of Trustees Of The Leland Stanford Junior University | Anti-aliased magnetic resonance image reconstruction using partially parallel encoded data |
US7375523B1 (en) * | 2006-10-30 | 2008-05-20 | General Electric Company | System and method for fast MR coil sensitivity mapping |
DE102007004620B4 (de) * | 2007-01-30 | 2010-02-04 | Siemens Ag | Verbessertes dreidimensionales schichtselektives Mehrschicht-Anregungsverfahren in der MRT-Bildgebung |
US7777487B2 (en) * | 2007-02-15 | 2010-08-17 | Uwm Research Foundation, Inc. | Methods and apparatus for joint image reconstruction and coil sensitivity estimation in parallel MRI |
US8306289B1 (en) | 2007-02-23 | 2012-11-06 | University Of Virginia Patent Foundation | Method and system for off-resonance correction for non-cartesian parallel image reconstruction |
US7888935B1 (en) | 2007-02-23 | 2011-02-15 | University Of Virginia Patent Foundation | K-space trajectory estimation in spiral MRI system and related method thereof |
US7907760B2 (en) * | 2007-03-08 | 2011-03-15 | Allegheny-Singer Research Institute | Single coil parallel imaging |
US8219176B2 (en) * | 2007-03-08 | 2012-07-10 | Allegheny-Singer Research Institute | Single coil parallel imaging |
US7541808B2 (en) * | 2007-04-11 | 2009-06-02 | Allegheny-Singer Research Institute | Rapid MRI dynamic imaging using MACH |
US7394252B1 (en) | 2007-05-03 | 2008-07-01 | The General Hospital Corporation | Regularized GRAPPA reconstruction |
US20090093709A1 (en) * | 2007-05-18 | 2009-04-09 | Beth Israel Deaconess Medical Center, Inc. | Noise reduction system and methods for magnetic resonance imaging |
US20080292167A1 (en) * | 2007-05-24 | 2008-11-27 | Nick Todd | Method and system for constrained reconstruction applied to magnetic resonance temperature mapping |
US7816918B2 (en) * | 2007-05-24 | 2010-10-19 | The Johns Hopkins University | Optimized MRI strip array detectors and apparatus, systems and methods related thereto |
US7817838B2 (en) * | 2007-05-24 | 2010-10-19 | University Of Utah Research Foundation | Method and system for constrained reconstruction of imaging data using data reordering |
JP2011503541A (ja) * | 2007-11-06 | 2011-01-27 | ティツー・バイオシステムズ・インコーポレーテッド | 磁気共鳴緩和測定用の小型の磁石およびrfコイル |
JP5443695B2 (ja) * | 2008-03-05 | 2014-03-19 | 株式会社東芝 | 磁気共鳴イメージング装置 |
US7977943B2 (en) * | 2008-04-10 | 2011-07-12 | General Electric Company | Method and system for reconstructing images |
US7592808B1 (en) * | 2008-05-06 | 2009-09-22 | General Electric Company | System and method for reducing MR scan time using partial fourier acquisition and compressed sensing |
US8688193B2 (en) * | 2008-06-26 | 2014-04-01 | Allegheny-Singer Research Institute | Magnetic resonance imager, method and program which continuously applies steady-state free precession to k-space |
US8131046B2 (en) * | 2008-10-29 | 2012-03-06 | Allegheny-Singer Research Institute | Magnetic resonance imager using cylindrical offset region of excitation, and method |
US8299793B2 (en) * | 2009-01-12 | 2012-10-30 | Mayo Foundation For Medical Education And Research | Method and apparatus for improving 2D acceleration in MRI using a new coil array design |
EP2230530A1 (en) * | 2009-03-20 | 2010-09-22 | Koninklijke Philips Electronics N.V. | A tesseral shim coil for a magnetic resonance system |
DE102009015885B4 (de) * | 2009-04-01 | 2011-06-16 | Siemens Aktiengesellschaft | Verfahren zur Detektion fehlerhafter MR-Daten und Magnetresonanzanlage |
US8198892B2 (en) * | 2009-04-22 | 2012-06-12 | Allegheny-Singer Research Institute | Steady-state-free-precession (SSFP) magnetic resonance imaging (MRI) and method |
US8405394B2 (en) * | 2009-10-20 | 2013-03-26 | Allegheny-Singer Research Institute | Targeted acquisition using holistic ordering (TACHO) approach for high signal to noise imaging |
FR2951835B1 (fr) * | 2009-10-26 | 2013-10-18 | Bruker Biospin | Dispositif de correction de signaux de consigne et systeme de generation de gradients comportant un tel dispositif |
US8427153B2 (en) * | 2010-01-15 | 2013-04-23 | Beth Israel Deaconess Medical Center, Inc. | Method for motion correction in magnetic resonance imaging using radio frequency coil arrays |
DE102010011968A1 (de) * | 2010-03-03 | 2011-09-08 | Universität Duisburg-Essen | Verfahren zur Erzeugung eines Bilds mit einem Magnetresonanztomographen |
US20110215805A1 (en) * | 2010-03-03 | 2011-09-08 | Allegheny-Singer Research Institute | MRI and method using multi-slice imaging |
DE102011077197B4 (de) * | 2011-06-08 | 2013-05-16 | Siemens Aktiengesellschaft | Verzeichnungskorrektur bei einer Magnetresonanz-Bildgebung |
US8659297B2 (en) * | 2012-02-27 | 2014-02-25 | Perinatronics Medical Systems, Inc. | Reducing noise in magnetic resonance imaging using conductive loops |
KR101310825B1 (ko) | 2012-05-10 | 2013-10-14 | 고려대학교 산학협력단 | 자기 공명 영상 생성 방법 및 그에 따른 자기 공명 영상 생성 장치 |
KR101330638B1 (ko) | 2012-05-10 | 2013-11-18 | 고려대학교 산학협력단 | 자기 공명 영상 생성 방법 및 그에 따른 자기 공명 영상 생성 장치 |
CN104880684B (zh) * | 2014-02-28 | 2019-02-22 | 西门子(深圳)磁共振有限公司 | 一种磁共振成像系统的图像重建方法和装置 |
CN105738846B (zh) * | 2014-12-12 | 2019-01-25 | 西门子(深圳)磁共振有限公司 | K空间数据采集方法及其磁共振成像方法 |
DE102015200695B4 (de) | 2015-01-19 | 2016-08-18 | Siemens Healthcare Gmbh | Generieren von Steuerinformationen für eine Magnetresonanz-Bildgebung unter Verwendung mehrerer Frequenzspektren von verschiedenen Spulenelementen |
US10076249B2 (en) | 2015-08-04 | 2018-09-18 | General Electric Company | Proton density and T1 weighted zero TE MR thermometry |
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US11899085B2 (en) | 2019-10-21 | 2024-02-13 | Shanghai United Imaging Healthcare Co., Ltd. | System and method for magnetic resonance imaging |
US11852707B2 (en) * | 2019-10-21 | 2023-12-26 | Shanghai United Imaging Healthcare Co., Ltd. | Systems and methods for simultaneous multi-slice magnetic resonance imaging |
US11555875B2 (en) | 2021-03-24 | 2023-01-17 | Coilone, LLC | RF receive coil circuit for MRI systems |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4825162A (en) * | 1987-12-07 | 1989-04-25 | General Electric Company | Nuclear magnetic resonance (NMR) imaging with multiple surface coils |
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 |
US5208534A (en) * | 1989-08-09 | 1993-05-04 | Kabushiki Kaisha Toshiba | Magnetic resonance imaging system |
US5086275A (en) * | 1990-08-20 | 1992-02-04 | General Electric Company | Time domain filtering for nmr phased array imaging |
US5185573A (en) * | 1991-04-16 | 1993-02-09 | Hewlett-Packard Company | Method for focusing of magnetic resonance images |
US5374890A (en) * | 1992-07-24 | 1994-12-20 | Picker International, Inc. | Simultaneous magnetic resonance imaging of multiple human organs |
US5469060A (en) * | 1993-08-19 | 1995-11-21 | Meyerand; Mary E. | Time encoded magnetic resonance imaging |
-
1996
- 1996-11-12 US US08/746,358 patent/US5910728A/en not_active Expired - Lifetime
-
1997
- 1997-11-05 EP EP02011913A patent/EP1243938A3/en not_active Withdrawn
- 1997-11-05 EP EP97948164A patent/EP1015903B1/en not_active Expired - Lifetime
- 1997-11-05 JP JP52262798A patent/JP4044145B2/ja not_active Expired - Fee Related
- 1997-11-05 DE DE69722827T patent/DE69722827T2/de not_active Expired - Fee Related
- 1997-11-05 AU AU54286/98A patent/AU5428698A/en not_active Abandoned
- 1997-11-05 WO PCT/US1997/020068 patent/WO1998021600A1/en active IP Right Grant
- 1997-11-05 ES ES97948164T patent/ES2201331T3/es not_active Expired - Lifetime
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
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JP2004504908A (ja) * | 2000-07-31 | 2004-02-19 | コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ | 高速ダイナミック画像を形成する磁気共鳴方法 |
JP2004504910A (ja) * | 2000-07-31 | 2004-02-19 | コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ | 高速動的撮像を形成する磁気共鳴方法 |
JP2002102199A (ja) * | 2000-09-25 | 2002-04-09 | Ge Medical Systems Global Technology Co Llc | 磁気共鳴信号受信方法および装置並びに磁気共鳴撮影装置 |
JP2004358221A (ja) * | 2003-05-30 | 2004-12-24 | Ge Medical Systems Global Technology Co Llc | 並列式mriを用いた撮像を高速化させるための方法及びシステム |
JP2011505955A (ja) * | 2007-12-12 | 2011-03-03 | コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ | 超高磁場mri用の送受信コイル |
Also Published As
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WO1998021600A1 (en) | 1998-05-22 |
AU5428698A (en) | 1998-06-03 |
EP1243938A2 (en) | 2002-09-25 |
EP1015903A1 (en) | 2000-07-05 |
JP4044145B2 (ja) | 2008-02-06 |
DE69722827T2 (de) | 2004-05-06 |
EP1015903B1 (en) | 2003-06-11 |
US5910728A (en) | 1999-06-08 |
EP1243938A3 (en) | 2003-01-08 |
DE69722827D1 (de) | 2003-07-17 |
ES2201331T3 (es) | 2004-03-16 |
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