KR100747934B1 - 오차 정량화 방법 및 오차 정량화 시스템 - Google Patents

오차 정량화 방법 및 오차 정량화 시스템 Download PDF

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Publication number
KR100747934B1
KR100747934B1 KR1020000067444A KR20000067444A KR100747934B1 KR 100747934 B1 KR100747934 B1 KR 100747934B1 KR 1020000067444 A KR1020000067444 A KR 1020000067444A KR 20000067444 A KR20000067444 A KR 20000067444A KR 100747934 B1 KR100747934 B1 KR 100747934B1
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South Korea
Prior art keywords
error
magnetic field
gradient
vibration
magnetic
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English (en)
Korean (ko)
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KR20010060323A (ko
Inventor
조우시아오홍
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제너럴 일렉트릭 캄파니
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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/05—Detecting, measuring or recording for diagnosis by means of electric currents or magnetic fields; Measuring using microwaves or radio waves
    • A61B5/055—Detecting, measuring or recording for diagnosis by means of electric currents or magnetic fields; Measuring using microwaves or radio waves involving electronic [EMR] or nuclear [NMR] magnetic resonance, e.g. magnetic resonance 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
    • G01R33/565—Correction of image distortions, e.g. due to magnetic field inhomogeneities
    • G01R33/56563—Correction of image distortions, e.g. due to magnetic field inhomogeneities caused by a distortion of the main magnetic field B0, e.g. temporal variation of the magnitude or spatial inhomogeneity of B0

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  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Radiology & Medical Imaging (AREA)
  • Engineering & Computer Science (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Signal Processing (AREA)
  • General Physics & Mathematics (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • Medical Informatics (AREA)
  • Pathology (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Biophysics (AREA)
  • Molecular Biology (AREA)
  • Surgery (AREA)
  • Animal Behavior & Ethology (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Magnetic Resonance Imaging Apparatus (AREA)
KR1020000067444A 1999-11-15 2000-11-14 오차 정량화 방법 및 오차 정량화 시스템 Expired - Fee Related KR100747934B1 (ko)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US16552399P 1999-11-15 1999-11-15
US60/165,523 1999-11-15
US09/469,864 US6380738B1 (en) 1999-11-15 1999-12-22 Method and apparatus for reducing image artifacts caused by magnet vibration in an MR imaging system
US09/469,864 1999-12-22

Publications (2)

Publication Number Publication Date
KR20010060323A KR20010060323A (ko) 2001-07-06
KR100747934B1 true KR100747934B1 (ko) 2007-08-08

Family

ID=26861460

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020000067444A Expired - Fee Related KR100747934B1 (ko) 1999-11-15 2000-11-14 오차 정량화 방법 및 오차 정량화 시스템

Country Status (5)

Country Link
US (1) US6380738B1 (enExample)
EP (1) EP1102082B1 (enExample)
JP (1) JP2001187040A (enExample)
KR (1) KR100747934B1 (enExample)
DE (1) DE60038427T2 (enExample)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10221640B4 (de) * 2002-05-15 2007-06-21 Siemens Ag Verfahren zur Vibrationskompensation bei Kernspintomographen
US7019524B2 (en) * 2002-05-17 2006-03-28 Ge Medical Systems Global Technology Company, Llc Method, system and computer product for k-space correction of gradient non-linearities
US6750651B2 (en) * 2002-07-03 2004-06-15 The Board Of Trustees Of The Leland Stanford Junior University Fat suppression in MRI using oscillating steady-state free precession
US6914428B2 (en) * 2002-08-15 2005-07-05 General Electric Company Magnetic resonance imaging systems and methods for acquiring multi-slice gradient echo images
WO2004070412A1 (en) * 2003-02-05 2004-08-19 Koninklijke Philips Electronics N.V. Compensation of magnetic field disturbances due to vibrations in an mri system
US7112965B2 (en) * 2004-04-30 2006-09-26 University Of Basel Low-impact noise acquisition magnetic resonance imaging
DE102005022549A1 (de) * 2005-05-17 2006-11-30 Siemens Ag Magnetresonanzeinrichtung
US7239140B1 (en) * 2005-12-21 2007-07-03 General Electric Company Method and apparatus for vibration-related artifact reduction
US9453897B2 (en) 2010-08-26 2016-09-27 Hitachi Medical Corporation Magnetic resonance imaging apparatus and vibrational error magnetic field reduction method
DE102011088553B4 (de) * 2011-12-14 2013-11-28 Siemens Aktiengesellschaft Korrektur einer zeitlichen Abweichung von k-Raum-Punkten bei MRI-Verfahren
DE102013218432A1 (de) 2013-09-13 2015-03-19 Siemens Aktiengesellschaft Medizinische Bildgebungsvorrichtung sowie ein Verfahren zu einem Bestimmen einer Position und/oder einer Bewegung eines Patienten während einer medizinischen Bildgebungsuntersuchung
JP6571434B2 (ja) * 2015-07-27 2019-09-04 キヤノンメディカルシステムズ株式会社 磁気共鳴イメージング装置及び磁気共鳴イメージング装置のアーティファクト抑制方法
EP3749185A4 (en) * 2018-06-25 2021-03-31 Samsung Electronics Co., Ltd. METHOD AND DEVICE FOR THE RECONSTRUCTION OF A MAGNETIC RESONANCE IMAGE
GB2578457B (en) * 2018-10-29 2021-01-13 Siemens Healthcare Ltd Anomaly detection and correlation system.
NO20231000A1 (en) 2021-05-07 2023-09-18 Halliburton Energy Services Inc Correction of nuclear magnetic resonance data in high vibration environments

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01141656A (ja) * 1987-11-30 1989-06-02 Yokogawa Medical Syst Ltd Ｎｍｒイメージング装置の磁場ドリフト補正方法
EP0337588A2 (en) * 1988-04-14 1989-10-18 The Regents Of The University Of California MRI compensated for spurious NMR frequency/phase shifts caused by spurious changes in magnetic fields during NMR data measurement processes
US5450010A (en) * 1992-06-29 1995-09-12 U.S. Philips Corporation Magnetic resonance imaging method and apparatus employing eddy current compensation by modification of gradient size

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4698591A (en) 1986-01-03 1987-10-06 General Electric Company Method for magnetic field gradient eddy current compensation
US5151656A (en) 1990-12-11 1992-09-29 General Electric Company Correction of nmr data acquired by an echo-planar technique
US5869965A (en) 1997-02-07 1999-02-09 General Electric Company Correction of artifacts caused by Maxwell terms in MR echo-planar images
US5864233A (en) 1997-02-22 1999-01-26 General Electric Company Method to reduce eddy current effects in diffusion-weighted echo planar imaging
US5923168A (en) 1997-06-17 1999-07-13 General Electric Company Correction of artifacts caused by Maxwell terms in slice offset echo planar imaging
DE60035758T2 (de) * 1999-11-15 2008-04-30 General Electric Co. Verfahren und Gerät zur Kompensation von Bildartefakten, die durch Vibration des Magneten in einem System der bildgebenden magnetischen Resonanz verursacht werden

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01141656A (ja) * 1987-11-30 1989-06-02 Yokogawa Medical Syst Ltd Ｎｍｒイメージング装置の磁場ドリフト補正方法
EP0337588A2 (en) * 1988-04-14 1989-10-18 The Regents Of The University Of California MRI compensated for spurious NMR frequency/phase shifts caused by spurious changes in magnetic fields during NMR data measurement processes
US5450010A (en) * 1992-06-29 1995-09-12 U.S. Philips Corporation Magnetic resonance imaging method and apparatus employing eddy current compensation by modification of gradient size

Also Published As

Publication number Publication date
EP1102082A2 (en) 2001-05-23
EP1102082A3 (en) 2003-10-15
EP1102082B1 (en) 2008-03-26
DE60038427D1 (de) 2008-05-08
DE60038427T2 (de) 2009-04-16
US6380738B1 (en) 2002-04-30
KR20010060323A (ko) 2001-07-06
JP2001187040A (ja) 2001-07-10

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