JP2005125096A - 非選択的且つノッチを有するrf飽和パルスを用いたmr潅流画像収集の方法及び装置 - Google Patents
非選択的且つノッチを有するrf飽和パルスを用いたmr潅流画像収集の方法及び装置 Download PDFInfo
- Publication number
- JP2005125096A JP2005125096A JP2004304987A JP2004304987A JP2005125096A JP 2005125096 A JP2005125096 A JP 2005125096A JP 2004304987 A JP2004304987 A JP 2004304987A JP 2004304987 A JP2004304987 A JP 2004304987A JP 2005125096 A JP2005125096 A JP 2005125096A
- Authority
- JP
- Japan
- Prior art keywords
- slice
- pulse
- selective
- segment
- data
- 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
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
- G01R33/56366—Perfusion 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
- G01R33/54—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
-
- 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
- G01R33/281—Means for the use of in vitro contrast agents
Landscapes
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Vascular Medicine (AREA)
- General Health & Medical Sciences (AREA)
- Radiology & Medical Imaging (AREA)
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- High Energy & Nuclear Physics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Magnetic Resonance Imaging Apparatus (AREA)
Abstract
【解決手段】 一連のノッチを有するRF飽和パルスと共に非選択的飽和パルスを用いてMR潅流データを収集する。非選択的飽和回復RFパルスは、非選択的で且つ一連のスライス位置における最初のスライス及び次のスライスに対する血液プール抑制において効果を発揮するように設計されている。最初のスライスの位置は、撮像対象の他のスライスの位置と必ずしも同軸であるとは限らないある角度又は平面に配置することができる。本発明は、効率的な空間的範囲を有するMRデータの収集及び信号強度対血液プール内の造影剤濃度の線形測定を提供するデータのキャリブレーションスライスに対応している。
【選択図】 図2
Description
R−R1 R−R間隔(キャリブレーションウィンドウ)
R−R2 次のR−R間隔
TI 磁化回復時間
TI1 磁化回復時間1
TI2 磁化回復時間2
LOC1 最初のスライス(位置)
LOC2 2番目のスライス(位置)
LOC3 3番目のスライス(位置)
LOC4 4番目のスライス(位置)
LOC5 最後のスライス(位置)
SR1 ノッチを有する最初の準備セグメント
SR2 ノッチを有する2番目の準備セグメント
SR3 ノッチを有する3番目の準備セグメント
SR4 ノッチを有する4番目の準備セグメント
SR5 ノッチを有する最後の準備セグメント
SL1 最初の画像収集セグメント
SL2 2番目の画像収集セグメント
SL3 3番目の画像収集セグメント
SL4 4番目の画像収集セグメント
SL5 最後の画像収集セグメント
74 パルスシーケンス
76 ゲート制御された信号
SR1’非選択的飽和回復RFパルス
SL1’最初のスライス又は空間位置に対する画像収集セグメント
Claims (10)
- 最初のスライスに対して非選択的準備パルスを印加する段階と、
後続のスライスに対してノッチを有する準備パルスを印加する段階と、
MRデータを収集する段階と、
を含む方法。 - 前記非選択的準備パルスは、前記最初のスライス及び次のスライスに対する血液プール抑制に有効である請求項1に記載の方法。
- 前記収集段階は、各スライスに対して一連の読み出しパルスを印加する段階を含む請求項1に記載の方法。
- 一連の読み出しパルスの各々は画像収集セグメントを定め、前記最初のスライスに対する前記画像収集セグメントは他の収集セグメントよりも低い空間分解能を有する請求項3に記載の方法。
- 収集された前記最初のスライスは収集された後続スライスとは異なる向きを有する請求項3に記載の方法。
- 前記収集された後続スライスは互いに対して平行に配向されている請求項5に記載の方法。
- スライスの数は一連のR−R間隔にわたることを特徴とする請求項1に記載の方法。
- 関心領域にわたって造影剤濃度の線形測定を行う段階を更に含む請求項1に記載の方法。
- 被検体の心臓潅流又は肝臓潅流の画像を再構成する段階を更に含む請求項1に記載の方法。
- キャリブレーション間隔において繰り出される非選択的準備セグメント及びそれに続く最初の収集セグメントと、
前記キャリブレーション間隔の後に繰り出される一連のノッチを有する選択的準備セグメント及びそれに続く後続のデータ収集セグメントと、
を含むパルスシーケンス。
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/605,703 US6903548B2 (en) | 2003-10-21 | 2003-10-21 | Method and apparatus for MR perfusion image acquisition using non-selective and notched RF saturation pulses |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2005125096A true JP2005125096A (ja) | 2005-05-19 |
JP4582516B2 JP4582516B2 (ja) | 2010-11-17 |
Family
ID=34520349
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2004304987A Active JP4582516B2 (ja) | 2003-10-21 | 2004-10-20 | 非選択的且つノッチを有するrf飽和パルスを用いたmr潅流画像収集の方法及び装置 |
Country Status (3)
Country | Link |
---|---|
US (1) | US6903548B2 (ja) |
JP (1) | JP4582516B2 (ja) |
NL (1) | NL1027264C2 (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101820302B1 (ko) * | 2015-12-21 | 2018-01-19 | 삼성전자주식회사 | 자기 공명 영상 장치 및 그 제어 방법 |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7064545B2 (en) * | 2004-08-30 | 2006-06-20 | General Electric Company | Method and apparatus of background suppression in MR imaging using spin locking |
US7480527B2 (en) * | 2006-02-15 | 2009-01-20 | Siemens Aktiengesellschaft | Magnetic resonance imaging method and apparatus with non-selective excitation of the examination subject |
US8295573B2 (en) | 2006-05-22 | 2012-10-23 | Koninklijke Philips Electronics N.V. | Motion-compensated coronary flow from projection imaging |
US8831703B2 (en) * | 2006-10-23 | 2014-09-09 | The General Hospital Corporation | Selective MR imaging of segmented anatomy |
US8169218B2 (en) * | 2008-04-18 | 2012-05-01 | Beth Israel Deaconess Medical Center, Inc. | Methods and apparatus for non-contrast enhanced pulmonary magnetic resonance imaging |
US8970217B1 (en) | 2010-04-14 | 2015-03-03 | Hypres, Inc. | System and method for noise reduction in magnetic resonance imaging |
EP2596376B1 (en) * | 2010-07-23 | 2017-05-03 | Koninklijke Philips N.V. | Dual pressure sensor signal chain to remove mutually-coupled mri interference |
US10092199B2 (en) * | 2014-04-01 | 2018-10-09 | Siemens Healthcare Gmbh | MR imaging apparatus and method for generating a perfusion image with motion correction |
US10520570B2 (en) | 2014-05-09 | 2019-12-31 | Beth Israel Deaconess Medical Center, Inc. | System and method for tissue characterization using multislice magnetic resonance imaging |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0576516A (ja) * | 1991-09-24 | 1993-03-30 | Yokogawa Medical Syst Ltd | Mri装置におけるプリサチユレーシヨン方法 |
JPH11164821A (ja) * | 1997-09-19 | 1999-06-22 | General Electric Co <Ge> | Mrデータ取得方法 |
JP2000093404A (ja) * | 1998-07-23 | 2000-04-04 | Hitachi Medical Corp | 磁気共鳴イメ―ジング方法および装置 |
JP2001120518A (ja) * | 1999-09-08 | 2001-05-08 | General Electric Co <Ge> | 切り目付きrf飽和パルスを用いたmr灌流画像取得の方法及び装置 |
JP2001170025A (ja) * | 1999-08-20 | 2001-06-26 | General Electric Co <Ge> | 動的被検体の磁気共鳴投影イメージング法 |
JP2002306450A (ja) * | 2000-12-29 | 2002-10-22 | Ge Medical Systems Global Technology Co Llc | 血液プール信号抑制により心筋梗塞検出を改良するための方法及び装置 |
WO2005023107A1 (ja) * | 2003-09-05 | 2005-03-17 | Hitachi Medical Corporation | 磁気共鳴イメージング方法及び装置 |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0958503B1 (en) * | 1997-12-08 | 2010-01-27 | Koninklijke Philips Electronics N.V. | Method of and device for imaging an object by means of magnetic resonance |
US6271665B1 (en) * | 1998-09-02 | 2001-08-07 | Stuart S. Berr | Extra slice spin tagging (EST) magnetic resonance imaging for determining perfusion |
US6078175A (en) * | 1998-10-26 | 2000-06-20 | General Electric Company | Acquistion of segmented cardiac gated MRI perfusion images |
-
2003
- 2003-10-21 US US10/605,703 patent/US6903548B2/en not_active Expired - Lifetime
-
2004
- 2004-10-15 NL NL1027264A patent/NL1027264C2/nl not_active IP Right Cessation
- 2004-10-20 JP JP2004304987A patent/JP4582516B2/ja active Active
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0576516A (ja) * | 1991-09-24 | 1993-03-30 | Yokogawa Medical Syst Ltd | Mri装置におけるプリサチユレーシヨン方法 |
JPH11164821A (ja) * | 1997-09-19 | 1999-06-22 | General Electric Co <Ge> | Mrデータ取得方法 |
JP2000093404A (ja) * | 1998-07-23 | 2000-04-04 | Hitachi Medical Corp | 磁気共鳴イメ―ジング方法および装置 |
JP2001170025A (ja) * | 1999-08-20 | 2001-06-26 | General Electric Co <Ge> | 動的被検体の磁気共鳴投影イメージング法 |
JP2001120518A (ja) * | 1999-09-08 | 2001-05-08 | General Electric Co <Ge> | 切り目付きrf飽和パルスを用いたmr灌流画像取得の方法及び装置 |
JP2002306450A (ja) * | 2000-12-29 | 2002-10-22 | Ge Medical Systems Global Technology Co Llc | 血液プール信号抑制により心筋梗塞検出を改良するための方法及び装置 |
WO2005023107A1 (ja) * | 2003-09-05 | 2005-03-17 | Hitachi Medical Corporation | 磁気共鳴イメージング方法及び装置 |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101820302B1 (ko) * | 2015-12-21 | 2018-01-19 | 삼성전자주식회사 | 자기 공명 영상 장치 및 그 제어 방법 |
US10353036B2 (en) | 2015-12-21 | 2019-07-16 | Samsung Electronics Co., Ltd. | Magnetic resonance imaging apparatus and method of controlling the same |
Also Published As
Publication number | Publication date |
---|---|
NL1027264C2 (nl) | 2006-09-06 |
JP4582516B2 (ja) | 2010-11-17 |
US20050083053A1 (en) | 2005-04-21 |
US6903548B2 (en) | 2005-06-07 |
NL1027264A1 (nl) | 2005-04-22 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US7689263B1 (en) | Method and apparatus for acquiring free-breathing MR images using navigator echo with saturation RF pulse | |
EP0894272B1 (en) | Method for performing magnetic resonance angiography using a contrast agent | |
US5363844A (en) | Breath-hold monitor for MR imaging | |
US6094591A (en) | Measurement of coronary flow reserve with MR oximetry | |
US6408201B1 (en) | Method and apparatus for efficient stenosis identification in peripheral arterial vasculature using MR imaging | |
JP4536853B2 (ja) | 核磁気共鳴データを取得する方法及び磁気共鳴システム | |
US6268730B1 (en) | Multi-slab multi-window cardiac MR imaging | |
US8086003B2 (en) | Method and magnetic resonance apparatus to acquire temporally successive image data sets | |
US6704593B2 (en) | Realtime MR scan prescription using physiological information | |
US6546275B2 (en) | Determination of the arterial input function in dynamic contrast-enhanced MRI | |
US6526307B2 (en) | Method and apparatus to improve myocardial infarction detection with blood pool signal suppression | |
US8121668B2 (en) | System and method for providing flow-enhanced signal intensity during a functional MRI process | |
JP6388877B2 (ja) | 有害な心臓状態を有する被験者の改善された心臓イメージングのためのシステムおよび方法 | |
US9320452B2 (en) | Magnetic resonance imaging of amyloid plaque in the brain | |
JP4980013B2 (ja) | 核磁気共鳴装置 | |
US6618605B1 (en) | Method and apparatus for MR perfusion image acquisition using a notched RF saturation pulse | |
US7952354B2 (en) | System and method for fast MR imaging of metabolites at selective excitation frequencies | |
JPH0658399B2 (ja) | 流れを確認する非侵入形の装置 | |
US7064545B2 (en) | Method and apparatus of background suppression in MR imaging using spin locking | |
US6201986B1 (en) | Synchronized K-space sampling in magnetic resonance angiography | |
JP4582516B2 (ja) | 非選択的且つノッチを有するrf飽和パルスを用いたmr潅流画像収集の方法及び装置 | |
US6198960B1 (en) | Flip angle modulated magnetic resonance angiography | |
US6603992B1 (en) | Method and system for synchronizing magnetic resonance image acquisition to the arrival of a signal-enhancing contrast agent | |
US20090060841A1 (en) | Apparatus and method for combined use of variable flip angles and centric phase encoding in hyperpolarized 13c imaging | |
US7693569B1 (en) | Method and system of determining motion in a region-of-interest directly and independently of k-space trajectory |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
A621 | Written request for application examination |
Free format text: JAPANESE INTERMEDIATE CODE: A621 Effective date: 20071017 |
|
A977 | Report on retrieval |
Free format text: JAPANESE INTERMEDIATE CODE: A971007 Effective date: 20100728 |
|
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: 20100803 |
|
A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 |
|
RD02 | Notification of acceptance of power of attorney |
Free format text: JAPANESE INTERMEDIATE CODE: A7422 Effective date: 20100823 |
|
RD04 | Notification of resignation of power of attorney |
Free format text: JAPANESE INTERMEDIATE CODE: A7424 Effective date: 20100823 |
|
A61 | First payment of annual fees (during grant procedure) |
Free format text: JAPANESE INTERMEDIATE CODE: A61 Effective date: 20100823 |
|
R150 | Certificate of patent or registration of utility model |
Ref document number: 4582516 Country of ref document: JP Free format text: JAPANESE INTERMEDIATE CODE: R150 Free format text: JAPANESE INTERMEDIATE CODE: R150 |
|
FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20130910 Year of fee payment: 3 |
|
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 |
|
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 |
|
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 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |