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 nucleareInfo
- 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
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)
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)
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)
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 |
-
2004
- 2004-08-05 IT IT000032A patent/ITSV20040032A1/it unknown
-
2005
- 2005-07-25 EP EP05106831A patent/EP1624315A1/en not_active Withdrawn
- 2005-08-05 US US11/197,341 patent/US7504825B2/en active Active
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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