WO1989011822A1 - Procede d'imagerie separative pour l'eau et la graisse par imagerie a resonance magnetique - Google Patents

Procede d'imagerie separative pour l'eau et la graisse par imagerie a resonance magnetique Download PDF

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Publication number
WO1989011822A1
WO1989011822A1 PCT/JP1989/000542 JP8900542W WO8911822A1 WO 1989011822 A1 WO1989011822 A1 WO 1989011822A1 JP 8900542 W JP8900542 W JP 8900542W WO 8911822 A1 WO8911822 A1 WO 8911822A1
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WO
WIPO (PCT)
Prior art keywords
water
scan
fat
mri
image 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.)
Ceased
Application number
PCT/JP1989/000542
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English (en)
French (fr)
Japanese (ja)
Inventor
Yuji Inoue
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.)
GE Healthcare Japan Corp
Original Assignee
Yokogawa Medical Systems Ltd
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 Yokogawa Medical Systems Ltd filed Critical Yokogawa Medical Systems Ltd
Priority to DE68927053T priority Critical patent/DE68927053T2/de
Priority to EP89906470A priority patent/EP0417284B1/en
Publication of WO1989011822A1 publication Critical patent/WO1989011822A1/ja
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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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
    • G01R33/4828—Resolving the MR signals of different chemical species, e.g. water-fat 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
    • G01R33/483—NMR imaging systems with selection of signals or spectra from particular regions of the volume, e.g. in vivo spectroscopy
    • G01R33/485—NMR imaging systems with selection of signals or spectra from particular regions of the volume, e.g. in vivo spectroscopy based on chemical shift information [CSI] or spectroscopic imaging, e.g. to acquire the spatial distributions of metabolites

Definitions

  • This translation relates to a method for separating water and fat in MRI (Magn etic Resonance Imaging), which obtains water and fat in the body using a chemical shift.
  • MRI Magnetic etic Resonance Imaging
  • MR I the chemical shift of the same nuclide ⁇ using the two components is used to separate the same " ⁇ " layer surface in the body into a proton image of only water and a proton image of only fat. There is a separate imaging method.
  • FIG. 4 is a table showing the Dixo ⁇ pulse sequence of the example.
  • t is ⁇ ', 90.
  • the direction of the static (! The direction is the Y-axis and the horizontal direction (right) perpendicular to the Z-axis is the X-axis.
  • the RF places the proton c ⁇ f-f ⁇ d ⁇ r vector oriented in the Z-fat direction perpendicular to this. (Rad io- Frequency) There are iTC, depending on the times!
  • the chemical shift is about 3.5 PPID ⁇ , so the static ⁇ «J3 ⁇ 4 ⁇ 0.5 T ( 3.5msec.
  • W represents a water shading vector
  • F represents a fat shading vector
  • t 0, ie 90.
  • Rain vector i feffi is, at 180 * path from Y r car ⁇ , Ru been spilled around the Y 'axis.
  • the vulgarity and fat dung vector are 180. Pulse E
  • t T E hands of vectors and mosquito 4 " ⁇ Ru Chapter 5 beta diagram of Si scan,
  • EXP ( ⁇ 2 ⁇ ) is a transposed f ⁇ ⁇ ⁇ X component by the static magnetic field iiW " ⁇ and is included only in the S; data. If there is such fi3 ⁇ 4t ⁇ X component, the equation (4), (5) i3 ⁇ 43 ⁇ 4 ⁇ i ⁇ ' Not good Therefore, the water using a phantom to advance quietness ⁇ cloth EXP (i, the Si scan i iiffi l components using this ⁇ to «:!. To have the scan, in the alternative S 0 and Si Image data ⁇ value image
  • the book ⁇ is a spin echo signal ⁇ iim ⁇
  • So scan S i scan with 180% difference in f ⁇ dani vector ffl, and S 2 scan with 90 d in these drama vector ⁇ ffi, image data of S! And S 2 scan »Calculate ⁇ to obtain water and fat images from So and scan values ⁇ .
  • Fig. 1 shows the month's noise sequence.
  • Fig. 3 AU7 ⁇ 3 C [Pulse sequence of other examples of Akira Hachi] ⁇ Fig. 4 shows the pulse sequence of Dixo ⁇
  • FIG. 5 is a table showing the relationship between water and a fat-filling vector in the Dickson method of the example of FIG. 5AH and FIG. 5B.
  • Glue is different from, in addition to the So and Si scan, both vectors ⁇ 3 ⁇ 4 is to perform S 2 scan to Figure 90 '.
  • S. Scan ⁇ 180 at ⁇ / 2 early t T E / 2- ⁇ / 2.
  • Equation (24) is also constructed by static ⁇ etc.
  • So scan which is the data in the Sis 2 scan, ie, the image data may be obtained by filling the data with zero data in the ;; .

Landscapes

  • Physics & Mathematics (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • General Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Optics & Photonics (AREA)
  • Magnetic Resonance Imaging Apparatus (AREA)
PCT/JP1989/000542 1988-05-31 1989-05-31 Procede d'imagerie separative pour l'eau et la graisse par imagerie a resonance magnetique Ceased WO1989011822A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DE68927053T DE68927053T2 (de) 1988-05-31 1989-05-31 Separates mri-abbildungsverfahren für wasser bzw. fettgewebe
EP89906470A EP0417284B1 (en) 1988-05-31 1989-05-31 Separative imaging method for water and fat by mri

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP63134261A JPH01303137A (ja) 1988-05-31 1988-05-31 水，脂肪分離ｍｒｉ装置
JP63/134261 1988-05-31

Publications (1)

Publication Number Publication Date
WO1989011822A1 true WO1989011822A1 (fr) 1989-12-14

Family

ID=15124162

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP1989/000542 Ceased WO1989011822A1 (fr) 1988-05-31 1989-05-31 Procede d'imagerie separative pour l'eau et la graisse par imagerie a resonance magnetique

Country Status (5)

Country Link
US (1) US5134372A (https=)
EP (1) EP0417284B1 (https=)
JP (1) JPH01303137A (https=)
DE (1) DE68927053T2 (https=)
WO (1) WO1989011822A1 (https=)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0470845A3 (en) * 1990-08-10 1992-08-19 General Electric Company Nmr imaging of chemical species

Families Citing this family (22)

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Publication number Priority date Publication date Assignee Title
JPH0767443B2 (ja) * 1990-02-06 1995-07-26 株式会社東芝 磁気共鳴イメージング方法
US5225781A (en) * 1990-08-10 1993-07-06 General Electric Company Robust decomposition of NMR images by chemical species
CA2131705C (en) * 1992-03-09 2008-10-21 Aaron G. Filler Image neurography and diffusion anisotropy imaging
US5706813A (en) * 1992-03-09 1998-01-13 University Of Washington Focal neurographic magnetic resonance imaging system
US5321359A (en) * 1993-03-29 1994-06-14 General Electric Company Selective imaging among three or more chemical species
US5594336A (en) * 1995-06-02 1997-01-14 Picker International, Inc. Three point technique using spin and gradient echoes for water/fat separation
US5510713A (en) * 1995-06-30 1996-04-23 General Electric Company Technique for selective fat saturation in MR imaging
US5627469A (en) * 1995-07-31 1997-05-06 Advanced Mammography Systems, Inc. Separation of fat and water magnetic resonance images
US5909119A (en) * 1995-08-18 1999-06-01 Toshiba America Mri, Inc. Method and apparatus for providing separate fat and water MRI images in a single acquisition scan
US6091243A (en) * 1997-11-13 2000-07-18 The University Of British Columbia Water-fat imaging with direct phase encoding (DPE)
NO311111B1 (no) * 1998-04-03 2001-10-08 Geir H Soerland Metode for bestemmelse av mengden av fett og vann i en biologisk pröve
US6016057A (en) * 1998-04-17 2000-01-18 General Electric Company System and method for improved water and fat separation using a set of low resolution MR images
US6459922B1 (en) 1999-03-30 2002-10-01 Toshiba America Mri, Inc. Post data-acquisition method for generating water/fat separated MR images having adjustable relaxation contrast
NO20002853D0 (no) * 2000-06-02 2000-06-02 Geir H Soerland Metode for bestemmelse av mengden av fett/vann i et multikomponent system
US6466014B1 (en) * 2000-08-29 2002-10-15 Ge Medical Systems Global Technology Company, Llc Suppression of fat signals in MR water images produced in Dixon imaging
US6906515B2 (en) * 2000-12-28 2005-06-14 Hitachi Medical Corporation Magnetic resonance imaging device and method
JP4049649B2 (ja) * 2002-10-01 2008-02-20 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
DE102004022687B4 (de) * 2004-05-05 2012-01-05 Bruker Biospin Gmbh Time-Domain-Verfahren zum quantitativen Bestimmen des Gehalts zumindest einer Komponente einer Probe mittels eines niedrigauflösenden Kernresonanz-Pulsspektrometers
EP2504714A1 (en) 2009-11-26 2012-10-03 BrainLAB AG Shift compensation in medical image processing
DE102010043956B4 (de) * 2010-11-16 2012-08-02 Siemens Aktiengesellschaft Erfassung von MR-Daten in einem vorbestimmten dreidimensionalen Volumenabschnitt unter Vermeidung von Einfaltungs- und Bandartefakten
JP5979327B2 (ja) * 2016-01-04 2016-08-24 株式会社日立製作所 磁気共鳴イメージング装置、その作動方法及び時系列画像作成プログラム
CN106324537B (zh) * 2016-08-12 2018-11-27 江亲瑜 一种超快速分段式单次激发水脂分离方法

Citations (1)

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Publication number Priority date Publication date Assignee Title
JPH06272346A (ja) * 1993-03-24 1994-09-27 Sumitomo Metal Ind Ltd デッキプレート及び合成スラブ

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US4618827A (en) * 1984-09-10 1986-10-21 General Electric Company Method for high-spatial-resolution spectroscopic NMR imaging of chemically-shifted nuclei
US4628262A (en) * 1985-02-05 1986-12-09 Advanced Nmr Systems, Inc. Multiple echo chemical shift imaging
US4661775A (en) * 1985-07-15 1987-04-28 Technicare Corporation Chemical shift imaging with field inhomogeneity correction
US4720679A (en) * 1985-12-31 1988-01-19 Picker International, Inc. Magnetic resonance imaging with phase encoded chemical shift correction
JPH01293856A (ja) * 1988-05-24 1989-11-27 Toshiba Corp 磁気共鳴イメージング装置
JPH0263435A (ja) * 1988-08-31 1990-03-02 Toshiba Corp 磁気共鳴イメージング装置
DE4024161A1 (de) * 1989-08-11 1991-02-14 Siemens Ag Pulssequenz zur schnellen ermittlung von bildern der fett- und wasserverteilung in einem untersuchungsobjekt mittels der kernmagnetischen resonanz

Patent Citations (1)

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Publication number Priority date Publication date Assignee Title
JPH06272346A (ja) * 1993-03-24 1994-09-27 Sumitomo Metal Ind Ltd デッキプレート及び合成スラブ

Non-Patent Citations (1)

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Title
See also references of EP0417284A4 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0470845A3 (en) * 1990-08-10 1992-08-19 General Electric Company Nmr imaging of chemical species

Also Published As

Publication number Publication date
DE68927053T2 (de) 1997-01-30
EP0417284A1 (en) 1991-03-20
EP0417284B1 (en) 1996-08-28
DE68927053D1 (de) 1996-10-02
US5134372A (en) 1992-07-28
JPH0370965B2 (https=) 1991-11-11
EP0417284A4 (en) 1991-10-09
JPH01303137A (ja) 1989-12-07

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