ITSV20020014A1 - Metodo e dispositivo per la compensazione di campi magnetici di disturbo in volumi di spazio e macchina per il rilevamento di immagini in ri - Google Patents

Metodo e dispositivo per la compensazione di campi magnetici di disturbo in volumi di spazio e macchina per il rilevamento di immagini in ri

Info

Publication number
ITSV20020014A1
ITSV20020014A1 IT2002SV000014A ITSV20020014A ITSV20020014A1 IT SV20020014 A1 ITSV20020014 A1 IT SV20020014A1 IT 2002SV000014 A IT2002SV000014 A IT 2002SV000014A IT SV20020014 A ITSV20020014 A IT SV20020014A IT SV20020014 A1 ITSV20020014 A1 IT SV20020014A1
Authority
IT
Italy
Prior art keywords
compensation
magnetic
volumes
interference
images
Prior art date
Application number
IT2002SV000014A
Other languages
English (en)
Inventor
Davide Carlini
Alessandro Carrozzi
Aldo Ginanneschi
Paolo Iaia
Original Assignee
Esaote Spa
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 Esaote Spa filed Critical Esaote Spa
Priority to IT2002SV000014A priority Critical patent/ITSV20020014A1/it
Priority to AT03100618T priority patent/ATE450801T1/de
Priority to EP03100618A priority patent/EP1353192B1/en
Priority to DE60330290T priority patent/DE60330290D1/de
Priority to ES03100618T priority patent/ES2334021T3/es
Priority to US10/409,061 priority patent/US6844732B2/en
Publication of ITSV20020014A1 publication Critical patent/ITSV20020014A1/it

Links

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
    • G01R33/28—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
    • G01R33/389—Field stabilisation, e.g. by field measurements and control means or indirectly by current stabilisation
    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • General Physics & Mathematics (AREA)
  • Magnetic Resonance Imaging Apparatus (AREA)
  • Measuring Magnetic Variables (AREA)
IT2002SV000014A 2002-04-09 2002-04-09 Metodo e dispositivo per la compensazione di campi magnetici di disturbo in volumi di spazio e macchina per il rilevamento di immagini in ri ITSV20020014A1 (it)

Priority Applications (6)

Application Number Priority Date Filing Date Title
IT2002SV000014A ITSV20020014A1 (it) 2002-04-09 2002-04-09 Metodo e dispositivo per la compensazione di campi magnetici di disturbo in volumi di spazio e macchina per il rilevamento di immagini in ri
AT03100618T ATE450801T1 (de) 2002-04-09 2003-03-11 Verfahren und gerät zur kompensierung von magnetischen rauschfeldern in räumlichen volumina und kernspintomograph
EP03100618A EP1353192B1 (en) 2002-04-09 2003-03-11 Method and device for compensating for magnetic noise fields in spatial volumes, and nuclear magnetic resonance imaging apparatus.
DE60330290T DE60330290D1 (de) 2002-04-09 2003-03-11 Verfahren und Gerät zur Kompensierung von magnetischen Rauschfeldern in räumlichen Volumina und Kernspintomograph
ES03100618T ES2334021T3 (es) 2002-04-09 2003-03-11 Metodo y dispositivo para compensar campos de ruido magnetico en volumenes espaciales, y aparato de formacion de imagenes por resonancia magnetica nuclear.
US10/409,061 US6844732B2 (en) 2002-04-09 2003-04-09 Method and device for compensating for magnetic noise fields in spatial volumes, and nuclear magnetic resonance imaging apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT2002SV000014A ITSV20020014A1 (it) 2002-04-09 2002-04-09 Metodo e dispositivo per la compensazione di campi magnetici di disturbo in volumi di spazio e macchina per il rilevamento di immagini in ri

Publications (1)

Publication Number Publication Date
ITSV20020014A1 true ITSV20020014A1 (it) 2003-10-09

Family

ID=28053462

Family Applications (1)

Application Number Title Priority Date Filing Date
IT2002SV000014A ITSV20020014A1 (it) 2002-04-09 2002-04-09 Metodo e dispositivo per la compensazione di campi magnetici di disturbo in volumi di spazio e macchina per il rilevamento di immagini in ri

Country Status (6)

Country Link
US (1) US6844732B2 (it)
EP (1) EP1353192B1 (it)
AT (1) ATE450801T1 (it)
DE (1) DE60330290D1 (it)
ES (1) ES2334021T3 (it)
IT (1) ITSV20020014A1 (it)

Families Citing this family (18)

* Cited by examiner, † Cited by third party
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JP2002170764A (ja) * 2000-12-04 2002-06-14 Nikon Corp 荷電粒子線露光装置、荷電粒子線露光装置の調整方法及び半導体デバイスの製造方法
DE10337241B4 (de) * 2003-08-13 2008-05-29 Siemens Ag Verzeichnungskorrigierte Magnetresonanzmessung und Magnetresonanzgerät
ITSV20040032A1 (it) 2004-08-05 2004-11-05 Esaote Spa Metodo e sonda per la compensazione di campi magnetici di disturbo in volumi di spazio in particolare nelle macchine per il rilevamento di immagini in risonanza magnetica nucleare
DE102006035949B4 (de) * 2006-07-31 2009-11-26 Bruker Biospin Ag Vorrichtung und Verfahren zur Kompensation von Magnetfeldstörungen in Magnetfeldern mit hoher Feldhomogenität
US20080048658A1 (en) * 2006-08-24 2008-02-28 Stephen Gerard Hushek Automatic noise cancellation for unshielded mr systems
US20080118128A1 (en) * 2006-11-21 2008-05-22 Thomas Louis Toth Methods and systems for enhanced accuracy image noise addition
US7508214B2 (en) * 2007-05-21 2009-03-24 Medrad, Inc. Transmit-mode phased array coils for reduced SAR and artifact issues
US8392142B1 (en) 2009-04-01 2013-03-05 The United States Of America As Represented By The Secretary Of The Navy Algorithmic reduction of vehicular magnetic self-noise
US8532437B2 (en) 2009-05-18 2013-09-10 Citrix Systems, Inc. Systems and methods for block recomposition for compound image compression
US8970217B1 (en) * 2010-04-14 2015-03-03 Hypres, Inc. System and method for noise reduction in magnetic resonance imaging
JP6502936B2 (ja) * 2013-07-19 2019-04-17 コーニンクレッカ フィリップス エヌ ヴェＫｏｎｉｎｋｌｉｊｋｅ Ｐｈｉｌｉｐｓ Ｎ．Ｖ． Ｍｒｉおよび核撮像のための複合アセンブリーにおける干渉低減
AU2015311825B2 (en) 2014-09-05 2019-01-17 Hyperfine Operations, Inc. Low field magnetic resonance imaging methods and apparatus
EP3276366A1 (en) 2016-07-26 2018-01-31 Esaote S.p.A. Method and system for compensating magnetic noise caused by environmental noise in a spatial volume
TWI685668B (zh) * 2016-09-29 2020-02-21 美商超精細研究股份有限公司 磁共振成像系統，以及搭配該磁共振成像系統使用之調諧系統
US10539637B2 (en) 2016-11-22 2020-01-21 Hyperfine Research, Inc. Portable magnetic resonance imaging methods and apparatus
US10627464B2 (en) 2016-11-22 2020-04-21 Hyperfine Research, Inc. Low-field magnetic resonance imaging methods and apparatus
EP3690469A1 (en) 2019-02-04 2020-08-05 Esaote S.p.A. Magnetic field sensor with compensation of a static magnetic field to avoid saturation of the sensor, and method for compensation of environmental magnetic noise using such a sensor
US11510588B2 (en) 2019-11-27 2022-11-29 Hyperfine Operations, Inc. Techniques for noise suppression in an environment of a magnetic resonance imaging system

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4665368A (en) * 1985-04-16 1987-05-12 Yokogawa Hokushin Electric Corporation NMR imaging apparatus
US5027071A (en) 1990-03-05 1991-06-25 General Electric Company Method of, and apparatus for, NMR slice selection
US5214383A (en) * 1990-10-29 1993-05-25 Resonex, Inc. MRI apparatus with external magnetic field compensation
DE4101481C2 (de) * 1991-01-19 1994-01-13 Bruker Analytische Messtechnik Anordnung zum Kompensieren externer Magnetfeldstörungen bei einem Kernresonanzspektrometer mit supraleitender Magnetspule
US5245286A (en) * 1991-04-18 1993-09-14 The Regents Of The University Of California Apparatus and method for stabilizing the background magnetic field during mri
FR2702279B1 (fr) * 1993-03-05 1995-04-07 Commissariat Energie Atomique Magnétomètre différentiel à résonance.
DE4424842C1 (de) * 1994-07-14 1996-02-01 Spectrospin Ag Kompensation von Störfeldern bei NMR-Messungen im Erdmagnetfeld
DE19702831A1 (de) * 1997-01-27 1998-03-12 Siemens Ag Vorrichtung zur Kompensation von externen Feldstörungen des Grundmagnetfeldes bei Kernspintomographen
IT1294226B1 (it) * 1997-08-01 1999-03-24 Itel Telecomunicazioni S R L Sistema attivo per la compensazione di campi magnetici di disturbo particolarmente adatti per l'uso su tomografi per risonanza magnetica

Also Published As

Publication number Publication date
EP1353192B1 (en) 2009-12-02
EP1353192A3 (en) 2004-07-14
ATE450801T1 (de) 2009-12-15
DE60330290D1 (de) 2010-01-14
US20030214296A1 (en) 2003-11-20
ES2334021T3 (es) 2010-03-04
US6844732B2 (en) 2005-01-18
EP1353192A2 (en) 2003-10-15

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