WO2005120340A2 - 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

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Publication number
WO2005120340A2
WO2005120340A2 PCT/IB2005/051855 IB2005051855W WO2005120340A2 WO 2005120340 A2 WO2005120340 A2 WO 2005120340A2 IB 2005051855 W IB2005051855 W IB 2005051855W WO 2005120340 A2 WO2005120340 A2 WO 2005120340A2
Authority
WO
WIPO (PCT)
Prior art keywords
coil
sections
linear
magnetic resonance
configuration
Prior art date
Application number
PCT/IB2005/051855
Other languages
English (en)
French (fr)
Other versions
WO2005120340A3 (en
Inventor
Maria Alfonsetti
Giuseppe Placidi
Antonello Sotgiu
Valeria Clementi
Stefano Iotti
Raffaele Lodi
Bruno Barbiroli
Marcello Alecci
Original Assignee
Consiglio Nazionale Delle Ricerche - Infm Istituto Nazionale Per La Fisica Della Materia
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 Ricerche - Infm Istituto Nazionale Per La Fisica Della Materia filed Critical Consiglio Nazionale Delle Ricerche - Infm Istituto Nazionale Per La Fisica Della Materia
Publication of WO2005120340A2 publication Critical patent/WO2005120340A2/en
Publication of WO2005120340A3 publication Critical patent/WO2005120340A3/en

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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

Definitions

  • Figures la-Id are schematic illustrations and practical embodiments of radiofrequency coils of the known circular ring type (la, lc) and square ring type (lb, Id) ;
  • Figures 2a-2d show different spatial orientations of a coil of the known type within a horizontal magnetic field B 0 ;
  • Figures 3a-3d show various spatial orientations of a coil of the known type within a vertical magnetic field B 0 ;
  • Figures 4a, 4b and 4c are respectively a schematic illustration of the anatomical details of the human calf muscles, a magnetic resonance image relating to a cross- section obtained using a volumetric coil of the known type, and a magnetic resonance image relating to a cross-section obtained using a planar coil of the known type;
  • Figures 5a-5d are schematic illustrations of variants of the coil according to the invention;
  • Figures 6a-6d are schematic illustrations of variants of the coil according to the invention;
  • Figures 6a-6d are schematic illustrations of variants of the coil

Landscapes

  • Physics & Mathematics (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • General Physics & Mathematics (AREA)
  • Magnetic Resonance Imaging Apparatus (AREA)
PCT/IB2005/051855 2004-06-07 2005-06-07 Radio frequency surface coil designs for magnetic resonance apparatus with improved spatial sensitivity and selectivity WO2005120340A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITTO2004A000378 2004-06-07
ITTO20040378 ITTO20040378A1 (it) 2004-06-07 2004-06-07 Configurazioni di bobina di superficie a radiofrequenza per apparecchiatura di risonanza magnetica con migliorata sensibilita' e selettivita' spaziale,ed apparecchiatura di rosonanza magnetica comprendente una tale bobina.

Publications (2)

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

Family

ID=34978772

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2005/051855 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 (it)
WO (1) WO2005120340A2 (it)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007052446A1 (de) * 2007-11-02 2009-05-07 Siemens Ag Kopfspule für ein Magnetresonanzgerät
ITUB20155278A1 (it) * 2015-10-28 2017-04-28 Antonello Sotgiu Apparato di imaging tramite Risonanze Magnetiche (MRI) dedicato all?osservazione ad alta risoluzione dell?occhio umano comprendente magnete ultracompatto, ricevitore ad antenna multipla e tecniche hardware e software per il disaccoppiamento delle antenne e l?annullamento del rumore ambientale. e software per il disaccoppiamento delle antenne e l?annullamento del rumore ambientale.

Citations (5)

* 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
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

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3422556B2 (ja) * 1994-04-22 2003-06-30 ジーイー横河メディカルシステム株式会社 Ｍｒｉ用ｒｆコイル
JP3478887B2 (ja) * 1994-12-05 2003-12-15 株式会社日立メディコ 磁気共鳴イメージング装置用照射コイル及びこれを用いた磁気共鳴イメージング装置
JP3612657B2 (ja) * 1996-04-12 2005-01-19 株式会社日立メディコ 磁気共鳴イメージング装置用照射コイル及び磁気共鳴イメージング装置

Patent Citations (5)

* 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
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, page 2064, XP002346665 *
PATENT ABSTRACTS OF JAPAN vol. 1996, no. 03, 29 March 1996 (1996-03-29) -& JP 07 289533 A (GE YOKOGAWA MEDICAL SYST LTD), 7 November 1995 (1995-11-07) *
PATENT ABSTRACTS OF JAPAN vol. 1996, no. 10, 31 October 1996 (1996-10-31) -& JP 08 154914 A (HITACHI MEDICAL CORP), 18 June 1996 (1996-06-18) *
PATENT ABSTRACTS OF JAPAN vol. 1998, no. 02, 30 January 1998 (1998-01-30) -& JP 09 276248 A (HITACHI MEDICAL CORP), 28 October 1997 (1997-10-28) *

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007052446A1 (de) * 2007-11-02 2009-05-07 Siemens Ag Kopfspule für ein Magnetresonanzgerät
DE102007052446B4 (de) * 2007-11-02 2010-02-11 Siemens Ag Kopfspule für ein Magnetresonanzgerät und Verwendung einer Kopfspule in der Magnetresonanz-Tomographie
US8244328B2 (en) 2007-11-02 2012-08-14 Siemens Aktiengesellschaft Head coil for a magnetic resonance device
ITUB20155278A1 (it) * 2015-10-28 2017-04-28 Antonello Sotgiu Apparato di imaging tramite Risonanze Magnetiche (MRI) dedicato all?osservazione ad alta risoluzione dell?occhio umano comprendente magnete ultracompatto, ricevitore ad antenna multipla e tecniche hardware e software per il disaccoppiamento delle antenne e l?annullamento del rumore ambientale. e software per il disaccoppiamento delle antenne e l?annullamento del rumore ambientale.

Also Published As

Publication number Publication date
ITTO20040378A1 (it) 2004-09-07
WO2005120340A3 (en) 2006-03-30

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