ITSV20040032A1 - 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 - Google Patents

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

Info

Publication number
ITSV20040032A1
ITSV20040032A1 IT000032A ITSV20040032A ITSV20040032A1 IT SV20040032 A1 ITSV20040032 A1 IT SV20040032A1 IT 000032 A IT000032 A IT 000032A IT SV20040032 A ITSV20040032 A IT SV20040032A IT SV20040032 A1 ITSV20040032 A1 IT SV20040032A1
Authority
IT
Italy
Prior art keywords
volumes
compensation
probe
machines
images
Prior art date
Application number
IT000032A
Other languages
English (en)
Inventor
Paolo Iaia
Stefano Pittaluga
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 IT000032A priority Critical patent/ITSV20040032A1/it
Publication of ITSV20040032A1 publication Critical patent/ITSV20040032A1/it
Priority to EP05106831A priority patent/EP1624315A1/en
Priority to US11/197,341 priority patent/US7504825B2/en

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)
IT000032A 2004-08-05 2004-08-05 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 ITSV20040032A1 (it)

Priority Applications (3)

Application Number Priority Date Filing Date Title
IT000032A ITSV20040032A1 (it) 2004-08-05 2004-08-05 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
EP05106831A EP1624315A1 (en) 2004-08-05 2005-07-25 Method and probe for compensating for magnetic noise fields in space volumes, particularly in magnetic resonance imaging apparatus
US11/197,341 US7504825B2 (en) 2004-08-05 2005-08-05 Method and probe for compensating for magnetic noise fields in space volumes, particularly in magnetic resonance imaging apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT000032A ITSV20040032A1 (it) 2004-08-05 2004-08-05 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

Publications (1)

Publication Number Publication Date
ITSV20040032A1 true ITSV20040032A1 (it) 2004-11-05

Family

ID=34956402

Family Applications (1)

Application Number Title Priority Date Filing Date
IT000032A ITSV20040032A1 (it) 2004-08-05 2004-08-05 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

Country Status (3)

Country Link
US (1) US7504825B2 (it)
EP (1) EP1624315A1 (it)
IT (1) ITSV20040032A1 (it)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7403011B2 (en) * 2006-02-13 2008-07-22 General Electric Company Self-shielded packaging for circuitry integrated with receiver coils in a imaging system
EP1913871B1 (en) * 2006-10-19 2017-01-11 Esaote S.p.A. Apparatus for determining indications helping the diagnosis of orthopedical diseases
DE102008026849B4 (de) * 2008-06-05 2012-09-20 Siemens Aktiengesellschaft Verfahren und Prüfeinrichtung zur Feld-Qualitätsprüfung einer Magnetresonanz-Antennenanordnung sowie Magnetresonanzsystem und Magnetresonanz-Antennenanordnung
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
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 (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4996484A (en) * 1988-12-29 1991-02-26 Atlantic Richfield Company Method and apparatus for cancelling powerline noise in geophysical electromagnetic exploration
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
JPH0779951A (ja) * 1993-09-17 1995-03-28 Hitachi Medical Corp 磁気共鳴イメージング装置
DE19702831A1 (de) * 1997-01-27 1998-03-12 Siemens Ag Vorrichtung zur Kompensation von externen Feldstörungen des Grundmagnetfeldes bei Kernspintomographen
JP3379488B2 (ja) * 1999-09-14 2003-02-24 株式会社日立製作所 磁場計測装置
JP3884243B2 (ja) * 2001-06-21 2007-02-21 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 外部磁界測定方法、静磁界補正方法、外部磁界測定装置およびｍｒｉ装置
ITSV20020014A1 (it) * 2002-04-09 2003-10-09 Esaote Spa Metodo e dispositivo per la compensazione di campi magnetici di disturbo in volumi di spazio e macchina per il rilevamento di immagini in ri
US8064984B2 (en) 2003-03-18 2011-11-22 Esaote S.P.A. Magnetic resonance imaging apparatus

Also Published As

Publication number Publication date
EP1624315A1 (en) 2006-02-08
US20060038562A1 (en) 2006-02-23
US7504825B2 (en) 2009-03-17

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