FR2655157B1 - Procede d'amelioration du facteur de qualite des antennes et plus particulierement des bobines de surface utilisees dans les applications medicales de la resonance magnetique nucleaire et dispositif pour sa mise en óoeuvre. - Google Patents

Procede d'amelioration du facteur de qualite des antennes et plus particulierement des bobines de surface utilisees dans les applications medicales de la resonance magnetique nucleaire et dispositif pour sa mise en óoeuvre.

Info

Publication number
FR2655157B1
FR2655157B1 FR8915750A FR8915750A FR2655157B1 FR 2655157 B1 FR2655157 B1 FR 2655157B1 FR 8915750 A FR8915750 A FR 8915750A FR 8915750 A FR8915750 A FR 8915750A FR 2655157 B1 FR2655157 B1 FR 2655157B1
Authority
FR
France
Prior art keywords
antennas
improving
magnetic resonance
nuclear magnetic
quality factor
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.)
Expired - Lifetime
Application number
FR8915750A
Other languages
English (en)
Other versions
FR2655157A1 (fr
Inventor
Mehier Henri
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to FR8915750A priority Critical patent/FR2655157B1/fr
Publication of FR2655157A1 publication Critical patent/FR2655157A1/fr
Application granted granted Critical
Publication of FR2655157B1 publication Critical patent/FR2655157B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • G01R33/36—Electrical details, e.g. matching or coupling of the coil to the receiver
    • 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
    • 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
    • G01R33/36—Electrical details, e.g. matching or coupling of the coil to the receiver
    • G01R33/3671—Electrical details, e.g. matching or coupling of the coil to the receiver involving modulation of the quality factor of the RF coil

Landscapes

  • Physics & Mathematics (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • General Physics & Mathematics (AREA)
  • Magnetic Resonance Imaging Apparatus (AREA)
FR8915750A 1989-11-24 1989-11-24 Procede d'amelioration du facteur de qualite des antennes et plus particulierement des bobines de surface utilisees dans les applications medicales de la resonance magnetique nucleaire et dispositif pour sa mise en óoeuvre. Expired - Lifetime FR2655157B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR8915750A FR2655157B1 (fr) 1989-11-24 1989-11-24 Procede d'amelioration du facteur de qualite des antennes et plus particulierement des bobines de surface utilisees dans les applications medicales de la resonance magnetique nucleaire et dispositif pour sa mise en óoeuvre.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8915750A FR2655157B1 (fr) 1989-11-24 1989-11-24 Procede d'amelioration du facteur de qualite des antennes et plus particulierement des bobines de surface utilisees dans les applications medicales de la resonance magnetique nucleaire et dispositif pour sa mise en óoeuvre.

Publications (2)

Publication Number Publication Date
FR2655157A1 FR2655157A1 (fr) 1991-05-31
FR2655157B1 true FR2655157B1 (fr) 1992-04-10

Family

ID=9387940

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8915750A Expired - Lifetime FR2655157B1 (fr) 1989-11-24 1989-11-24 Procede d'amelioration du facteur de qualite des antennes et plus particulierement des bobines de surface utilisees dans les applications medicales de la resonance magnetique nucleaire et dispositif pour sa mise en óoeuvre.

Country Status (1)

Country Link
FR (1) FR2655157B1 (fr)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI73320C (fi) * 1984-01-20 1987-09-10 Instrumentarium Oy Nmr-spolarrangemang.
US4812761A (en) * 1987-09-24 1989-03-14 Board Of Regents, The University Of Texas System Electrically parallel equal phase resonant loops for nuclear magnetic resonance surface coils
JPH01119747A (ja) * 1987-11-04 1989-05-11 Hitachi Ltd Ｎｍｒ受信コイル
DE3816831A1 (de) * 1988-05-18 1989-11-30 Philips Patentverwaltung Kernspinuntersuchungsgeraet mit einer hochfrequenzspulenanordnung

Also Published As

Publication number Publication date
FR2655157A1 (fr) 1991-05-31

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Legal Events

Date Code Title Description
ST Notification of lapse