JP5781760B2 - プロペラmri用磁気共鳴装置及び方法 - Google Patents
プロペラmri用磁気共鳴装置及び方法 Download PDFInfo
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- JP5781760B2 JP5781760B2 JP2010504941A JP2010504941A JP5781760B2 JP 5781760 B2 JP5781760 B2 JP 5781760B2 JP 2010504941 A JP2010504941 A JP 2010504941A JP 2010504941 A JP2010504941 A JP 2010504941A JP 5781760 B2 JP5781760 B2 JP 5781760B2
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- 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
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- 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
- G01R33/4826—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 in three dimensions
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- G—PHYSICS
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- 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
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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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- 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]
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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
- G01R33/5615—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
- G01R33/565—Correction of image distortions, e.g. due to magnetic field inhomogeneities
- G01R33/56509—Correction of image distortions, e.g. due to magnetic field inhomogeneities due to motion, displacement or flow, e.g. gradient moment nulling
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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
- G01R33/567—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
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Description
a)身体の少なくとも一部を、少なくとも1つのRFパルス及び切替え磁場傾斜のMR撮像シーケンスに曝すことによって、一連のMR信号を生成し、
b)PROPELLER法に従って、k空間の中心の周りで回転された複数のk空間ブレードを収集し、MR信号収集中に、k空間ブレードの回転角は、収集されるk空間ブレードの総数をNとして、180°/Nより大きい角度ずつ増大され、且つ
c)収集されたMR信号からMR画像を再構成する、
ように構成することを提案する。
a)身体の少なくとも一部を、少なくとも1つのRFパルス及び切替え磁場傾斜のMR撮像シーケンスに曝すことによって、一連のMR信号を生成し、
b)k空間の中央部分からMR基準データセットを収集し、
c)PROPELLER法に従って、k空間の中心の周りで回転された複数のk空間ブレードを収集し、k空間の中央部分の少なくとも一部が各k空間ブレードで収集され、
d)段階c)にて収集されたMRデータを、k空間ブレードごとに、k空間の中央部分のMR基準データセットと比較し、動き誘起の変位及び位相誤差の見積もり及び補正を行い、且つ
e)収集され且つ補正されたMR信号からMR画像を再構成する、
ように構成することを提案する。
a)身体の少なくとも一部を、少なくとも1つのRFパルス及び切替え磁場傾斜のMR撮像シーケンスに曝すことによって、一連のMR信号を生成し、
b)PROPELLER法に従って、k空間の中心の周りで回転された複数のk空間ブレードを収集し、
c)収集されたMRデータを重み付け、このとき、重み係数は、コントラスト操作に関する収集時間、動き補償に関する相関量、及び複数のk空間ブレードの重なり領域の幾何学配置に基づいて直接的に計算され、且つ
d)収集され且つ重み付けられたMR信号からMR画像を再構成する、
ように構成することを提案する。
w0(b,l,s)=wD(l,s)wC(b)
を用いて初期化される。ただし、wDは、通常はbに依存しないコントラスト加重に関する収集時間から得られた重みを表す。wCは、通常はbのみに依存する(面間)動き補正に関する相関量から得られた重みを表す。次の段階として、これらの重みが
Claims (3)
- 検査ボリューム内に配置された身体のMR撮像用の装置であって、
前記検査ボリューム内に実質的に均一な主磁場を構築する手段、
前記主磁場に重ね合わされる切替え磁場傾斜を生成する手段、
前記身体に向けてRFパルスを放射する手段、
前記磁場傾斜及び前記RFパルスの生成を制御する制御手段、
MR信号の受信及びサンプリングを行う手段、及び
前記信号のサンプルからMR画像を形成する再構成手段、
を有し、
a)前記身体の少なくとも一部を、少なくとも1つのRFパルス及び切替え磁場傾斜のMR撮像シーケンスに曝すことによって、一連のMR信号を生成し、
b)PROPELLER法に従って、k空間の中心の周りで回転された複数のk空間ブレードを収集し、MR信号収集中に、前記k空間ブレードの回転角は、137.51°の黄金角又は68.75°の半黄金角ずつ増大され、且つ
c)収集されたMR信号からMR画像を再構成する、
ように構成された装置。 - MR装置の検査ボリューム内に配置された身体の少なくとも一部のMR撮像方法であって:
a)前記身体の少なくとも一部を、少なくとも1つのRFパルス及び切替え磁場傾斜のMR撮像シーケンスに曝すことによって、一連のMR信号を生成する段階、
b)PROPELLER法に従って、k空間の中心の周りで回転された複数のk空間ブレードを収集する段階であり、MR信号収集中に、前記k空間ブレードの回転角が、137.51°の黄金角又は68.75°の半黄金角を近似した角度ずつ増大される段階、及び
c)収集されたMR信号からMR画像を再構成する段階、
を有するMR撮像方法。 - MR装置用のコンピュータプログラムであって、
a)少なくとも1つのRFパルス及び切替え磁場傾斜のMR撮像シーケンスを生成し、
b)PROPELLER法に従って、k空間の中心の周りで回転された複数のk空間ブレードを収集し、MR信号収集中に、前記k空間ブレードの回転角が、137.51°の黄金角又は68.75°の半黄金角を近似した角度ずつ増大され、且つ
c)収集されたMR信号からMR画像を再構成する、
ための命令群を有するコンピュータプログラム。
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PCT/IB2008/051544 WO2008132659A2 (en) | 2007-04-27 | 2008-04-22 | Magnetic resonance device and method for propeller mri |
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JP2013169033A Active JP5709950B2 (ja) | 2007-04-27 | 2013-08-16 | プロペラmri用磁気共鳴装置及び方法 |
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JP (3) | JP5781760B2 (ja) |
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Families Citing this family (33)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2145199B1 (en) * | 2007-04-27 | 2018-12-12 | Koninklijke Philips N.V. | Magnetic resonance device and method for propeller mri |
JP5613065B2 (ja) | 2010-01-21 | 2014-10-22 | 株式会社東芝 | 磁気共鳴イメージング装置 |
WO2012043311A1 (ja) * | 2010-09-27 | 2012-04-05 | 株式会社 日立メディコ | 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 |
WO2012160971A1 (ja) * | 2011-05-20 | 2012-11-29 | 株式会社 日立メディコ | 磁気共鳴イメージング装置、及び再構成画像取得方法 |
WO2013154834A1 (en) * | 2012-04-11 | 2013-10-17 | Dignity Health | System and method for magnetic resonance imaging using three-dimensional, distributed, non-cartesian sampling trajectories |
US9921285B2 (en) | 2012-04-19 | 2018-03-20 | New York University | System, method and computer-accessible medium for highly-accelerated dynamic magnetic resonance imaging using golden-angle radial sampling and compressed sensing |
RU2638104C2 (ru) * | 2012-09-04 | 2017-12-11 | Конинклейке Филипс Н.В. | Способ propeller с разделением вода - жир по методике диксона |
CN103777162B (zh) * | 2012-10-19 | 2018-06-05 | 上海联影医疗科技有限公司 | 磁共振成像k空间运动伪影矫正并行采集重建方法 |
KR101447547B1 (ko) | 2012-11-23 | 2014-10-06 | 삼성전자주식회사 | 자기 공명 영상 촬상 방법 및 장치 |
DE102013201616B3 (de) * | 2013-01-31 | 2014-07-17 | Siemens Aktiengesellschaft | TSE-basierte, gegen lokale B0-Feldvariationen unempfindliche MR-Mulitschicht-Anregung |
DE102013205576B4 (de) * | 2013-03-28 | 2024-05-23 | Siemens Healthineers Ag | Verfahren zum Erzeugen einer Bewegungskorrektur für PET-Daten, Verfahren zum Erzeugen von PET-Bildern sowie entsprechend ausgestaltete MR-Anlage und PET-Anlage, Computerprogramm und elektronisch lesbarer Datenträger |
WO2014165503A1 (en) * | 2013-04-03 | 2014-10-09 | Dignity Health | System and method for motion correction in magnetic resonance imaging |
CN104122521B (zh) * | 2013-04-27 | 2017-12-22 | 上海联影医疗科技有限公司 | k空间运动伪影矫正方法及装置 |
US10132889B2 (en) | 2013-05-22 | 2018-11-20 | General Electric Company | System and method for reducing acoustic noise level in MR imaging |
DE102013210947B4 (de) * | 2013-06-12 | 2019-01-10 | Siemens Healthcare Gmbh | Radiale MR-Abtastung unter Verwendung des Goldenen Winkels |
JP6479782B2 (ja) | 2013-10-08 | 2019-03-06 | コーニンクレッカ フィリップス エヌ ヴェKoninklijke Philips N.V. | 補正マルチスライス磁気共鳴イメージング |
US9788761B2 (en) * | 2014-02-27 | 2017-10-17 | Toshiba Medical Systems Corporation | Motion correction for magnetic resonance angiography (MRA) with 3D radial acquisitions |
DE102014209437B3 (de) * | 2014-05-19 | 2015-10-22 | Sirona Dental Systems Gmbh | Verfahren zur Erzeugung magnetresonanztomographischer Aufnahmen von zyklischer Bewegung |
DE102014220328B3 (de) * | 2014-10-07 | 2015-08-27 | Sirona Dental Systems Gmbh | Erstellung einer MRT-Aufnahme |
RU2707661C2 (ru) * | 2014-10-10 | 2019-11-28 | Конинклейке Филипс Н.В. | Мр (магнитно-резонансная) томография методом propeller c подавлением артефактов |
US9983283B2 (en) * | 2015-03-16 | 2018-05-29 | Toshiba Medical Systems Corporation | Accelerated MRI using radial strips and undersampling of k-space |
CN107850652B (zh) * | 2015-07-15 | 2021-10-15 | 皇家飞利浦有限公司 | 具有运动检测的mr成像 |
KR101733801B1 (ko) | 2015-12-17 | 2017-05-10 | 삼성전자주식회사 | 자기 공명 영상 장치 및 그 방법 |
CN107843862B (zh) * | 2016-09-20 | 2021-04-23 | 奥泰医疗系统有限责任公司 | 一种propeller技术中参考位置图像的非迭代生成方法 |
CN106264530B (zh) * | 2016-11-04 | 2019-08-23 | 深圳先进技术研究院 | 用于三维动态磁共振成像的笛卡尔k空间采集方法和系统 |
CN106264529B (zh) * | 2016-11-04 | 2019-08-23 | 深圳先进技术研究院 | 用于三维动态磁共振成像的圆柱形k空间采集方法和系统 |
CN109983358B (zh) * | 2016-11-24 | 2021-10-26 | 皇家飞利浦有限公司 | Propeller mr成像 |
CN106680748B (zh) * | 2016-12-30 | 2019-10-08 | 上海联影医疗科技有限公司 | 磁共振图像获取方法及磁共振系统 |
CN107037385B (zh) * | 2017-05-22 | 2019-10-01 | 上海培云教育科技有限公司 | 数字mri图谱的构建方法及设备 |
CN107219481B (zh) * | 2017-05-26 | 2019-09-27 | 深圳先进技术研究院 | 一种通用的三维欠采样轨迹设计方法 |
CN108577841B (zh) * | 2018-02-23 | 2021-09-10 | 奥泰医疗系统有限责任公司 | 一种propeller技术中抑制非刚性运动的权重计算方法 |
CN111239658B (zh) * | 2020-02-19 | 2022-07-19 | 上海康达卡勒幅医疗科技有限公司 | 一种减小propeller序列伪影的方法 |
US11550013B2 (en) * | 2020-09-30 | 2023-01-10 | GE Precision Healthcare LLC | Systems and methods of silent multi-gradient echo dynamic magnetic resonance imaging |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4317028C3 (de) * | 1993-05-21 | 2000-06-29 | Martin Busch | Verfahren zur Akquisition und Auswertung von Daten in einem Kernspin-Tomographen |
DE10211485A1 (de) * | 2002-03-15 | 2003-09-25 | Philips Intellectual Property | Verfahren zur Bestimmung einer Objektfunktion |
WO2004031793A1 (en) * | 2002-10-01 | 2004-04-15 | Koninklijke Philips Electronics N.V. | A method for k-space data acquisition and mri device |
WO2005023108A1 (ja) * | 2003-09-05 | 2005-03-17 | Hitachi Medical Corporation | 磁気共鳴イメージング装置 |
US7176684B2 (en) | 2005-06-29 | 2007-02-13 | General Electric Company | Method and system of determining in-plane motion in propeller data |
CN101232845B (zh) * | 2005-07-27 | 2010-08-04 | 株式会社日立医药 | 磁共振成像装置 |
DE102006033862B3 (de) * | 2006-07-21 | 2007-12-06 | Siemens Ag | Verfahren zur dynamischen Magnet-Resonanz-Bildgebung sowie Magnet-Resonanz-Gerät |
EP2145199B1 (en) * | 2007-04-27 | 2018-12-12 | Koninklijke Philips N.V. | Magnetic resonance device and method for propeller mri |
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