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WO2005120340A3 - Radio frequency surface coil designs for magnetic resonance apparatus with improved spatial sensitivity and selectivity - Google Patents

Radio frequency surface coil designs for magnetic resonance apparatus with improved spatial sensitivity and selectivity Download PDF

Info

Publication number
WO2005120340A3
WO2005120340A3 PCT/IB2005/051855 IB2005051855W WO2005120340A3 WO 2005120340 A3 WO2005120340 A3 WO 2005120340A3 IB 2005051855 W IB2005051855 W IB 2005051855W WO 2005120340 A3 WO2005120340 A3 WO 2005120340A3
Authority
WO
WIPO (PCT)
Prior art keywords
coil
magnetic resonance
resonance apparatus
selectivity
radio frequency
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/IB2005/051855
Other languages
French (fr)
Other versions
WO2005120340A2 (en
Inventor
Maria Alfonsetti
Giuseppe Placidi
Antonello Sotgiu
Valeria Clementi
Stefano Iotti
Raffaele Lodi
Bruno Barbiroli
Marcello Alecci
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.)
Consiglio Nazionale delle Richerche CNR
Istituto Nazionale per la Fisica della Materia INFM CNR
Original Assignee
Consiglio Nazionale delle Richerche CNR
Istituto Nazionale per la Fisica della Materia INFM CNR
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 Consiglio Nazionale delle Richerche CNR, Istituto Nazionale per la Fisica della Materia INFM CNR filed Critical Consiglio Nazionale delle Richerche CNR
Publication of WO2005120340A2 publication Critical patent/WO2005120340A2/en
Publication of WO2005120340A3 publication Critical patent/WO2005120340A3/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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
    • G01R33/32—Excitation or detection systems, e.g. using radio frequency signals
    • G01R33/34—Constructional details, e.g. resonators, specially adapted to MR
    • G01R33/341—Constructional details, e.g. resonators, specially adapted to MR comprising surface coils

Landscapes

  • Physics & Mathematics (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • General Physics & Mathematics (AREA)
  • Magnetic Resonance Imaging Apparatus (AREA)

Abstract

Surface coil configurations for a magnetic resonance apparatus are described, said configurations comprising a conductive path (10) which extends substantially in a figure of eight forming a pair of adjacent lobes (10a, 10b;) and including a plurality of middle linear sections (20a, 20a', 20a'', 20b, 20b', 20b'';) passed through by current directed in the same direction or in substantially concordant directions and grouped together in a central region of the coil, and sections with an arbitrary shape (22a, 22b) passed through current in the opposite direction in the peripheral region, so that the magnetic radiofrequency field in the central region of the coil is substantially directed in a direction parallel to the local plane of the coil and is spatially non-homogeneous and able to be modulated depending on the number and the geometrical arrangement of said middle linear sections.
PCT/IB2005/051855 2004-06-07 2005-06-07 Radio frequency surface coil designs for magnetic resonance apparatus with improved spatial sensitivity and selectivity Ceased WO2005120340A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITTO2004A000378 2004-06-07
ITTO20040378 ITTO20040378A1 (en) 2004-06-07 2004-06-07 RADIOFREQUENCY SURFACE COIL CONFIGURATIONS FOR MAGNETIC RESONANCE EQUIPMENT WITH IMPROVED SENSITIVITY AND SPATIAL SELECTIVITY, AND MAGNETIC ROSONANCE EQUIPMENT INCLUDING SUCH COIL.

Publications (2)

Publication Number Publication Date
WO2005120340A2 WO2005120340A2 (en) 2005-12-22
WO2005120340A3 true WO2005120340A3 (en) 2006-03-30

Family

ID=34978772

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2005/051855 Ceased WO2005120340A2 (en) 2004-06-07 2005-06-07 Radio frequency surface coil designs for magnetic resonance apparatus with improved spatial sensitivity and selectivity

Country Status (2)

Country Link
IT (1) ITTO20040378A1 (en)
WO (1) WO2005120340A2 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007052446B4 (en) 2007-11-02 2010-02-11 Siemens Ag Head coil for a magnetic resonance apparatus and use of a head coil in magnetic resonance tomography
ITUB20155278A1 (en) * 2015-10-28 2017-04-28 Antonello Sotgiu Imaging system using Magnetic Resonances (MRI) dedicated to high-resolution observation of the human eye including an ultra-compact magnet, multiple-antenna receiver and hardware and software techniques for decoupling the antennas and canceling environmental noise. and software for the decoupling of antennas and the cancellation of environmental noise.

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0404592A1 (en) * 1989-06-23 1990-12-27 General Electric Company NMR probe with multiple isolated coplanar surface coils
JPH07289533A (en) * 1994-04-22 1995-11-07 Ge Yokogawa Medical Syst Ltd Rf coil for mri
JPH08154914A (en) * 1994-12-05 1996-06-18 Hitachi Medical Corp Irradiation coil for magnetic resonance imaging apparatus
JPH09276248A (en) * 1996-04-12 1997-10-28 Hitachi Medical Corp Magnetic resonance imaging device
US6172503B1 (en) * 1998-03-11 2001-01-09 Kabushiki Kaisha Toshiba Magnetic resonance imaging apparatus and RF coil to be used therefor
US6300761B1 (en) * 1998-11-27 2001-10-09 Siemens Aktiengesellschaft Antenna array for magnetic resonance examinations
EP1150133A2 (en) * 2000-04-26 2001-10-31 GE Medical Systems Global Technology Company LLC MRI RF coil
US20040061498A1 (en) * 2000-11-20 2004-04-01 Hisaaki Ochi Magnetic resonance imaging system

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0404592A1 (en) * 1989-06-23 1990-12-27 General Electric Company NMR probe with multiple isolated coplanar surface coils
JPH07289533A (en) * 1994-04-22 1995-11-07 Ge Yokogawa Medical Syst Ltd Rf coil for mri
JPH08154914A (en) * 1994-12-05 1996-06-18 Hitachi Medical Corp Irradiation coil for magnetic resonance imaging apparatus
JPH09276248A (en) * 1996-04-12 1997-10-28 Hitachi Medical Corp Magnetic resonance imaging device
US6172503B1 (en) * 1998-03-11 2001-01-09 Kabushiki Kaisha Toshiba Magnetic resonance imaging apparatus and RF coil to be used therefor
US6300761B1 (en) * 1998-11-27 2001-10-09 Siemens Aktiengesellschaft Antenna array for magnetic resonance examinations
EP1150133A2 (en) * 2000-04-26 2001-10-31 GE Medical Systems Global Technology Company LLC MRI RF coil
US20040061498A1 (en) * 2000-11-20 2004-04-01 Hisaaki Ochi Magnetic resonance imaging system

Non-Patent Citations (4)

* Cited by examiner, † Cited by third party
Title
B.TANG ET AL.: "Optimization of RF Coil for Vertical Magnetic Field MRI", PROC.INTL.SOC.MAG.RESON.MED., 1999, pages 2064, XP002346665 *
PATENT ABSTRACTS OF JAPAN vol. 1996, no. 03 29 March 1996 (1996-03-29) *
PATENT ABSTRACTS OF JAPAN vol. 1996, no. 10 31 October 1996 (1996-10-31) *
PATENT ABSTRACTS OF JAPAN vol. 1998, no. 02 30 January 1998 (1998-01-30) *

Also Published As

Publication number Publication date
ITTO20040378A1 (en) 2004-09-07
WO2005120340A2 (en) 2005-12-22

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