FR2530816A1 - Systeme d'antennes radiofrequence pour l'examen des corps volumineux par resonance magnetique nucleaire et appareil d'imagerie utilisant un tel systeme - Google Patents
Systeme d'antennes radiofrequence pour l'examen des corps volumineux par resonance magnetique nucleaire et appareil d'imagerie utilisant un tel systeme Download PDFInfo
- Publication number
- FR2530816A1 FR2530816A1 FR8212858A FR8212858A FR2530816A1 FR 2530816 A1 FR2530816 A1 FR 2530816A1 FR 8212858 A FR8212858 A FR 8212858A FR 8212858 A FR8212858 A FR 8212858A FR 2530816 A1 FR2530816 A1 FR 2530816A1
- Authority
- FR
- France
- Prior art keywords
- coils
- coil
- antenna system
- radiofrequency
- magnetic field
- 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.)
- Granted
Links
- 238000005481 NMR spectroscopy Methods 0.000 title claims abstract description 12
- 238000012633 nuclear imaging Methods 0.000 title 1
- 230000000694 effects Effects 0.000 claims abstract description 5
- 238000003384 imaging method Methods 0.000 claims abstract description 5
- 238000005259 measurement Methods 0.000 claims description 6
- 239000012472 biological sample Substances 0.000 claims description 3
- 238000009432 framing Methods 0.000 claims description 2
- 230000010363 phase shift Effects 0.000 claims description 2
- 230000005540 biological transmission Effects 0.000 claims 1
- 230000003068 static effect Effects 0.000 abstract description 4
- 230000007423 decrease Effects 0.000 abstract description 2
- 230000005284 excitation Effects 0.000 description 4
- 238000003325 tomography Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 229910052739 hydrogen Inorganic materials 0.000 description 2
- 239000001257 hydrogen Substances 0.000 description 2
- 238000013421 nuclear magnetic resonance imaging Methods 0.000 description 2
- 230000035945 sensitivity Effects 0.000 description 2
- 101100328884 Caenorhabditis elegans sqt-3 gene Proteins 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 150000002431 hydrogen Chemical class 0.000 description 1
- 238000000338 in vitro Methods 0.000 description 1
- 238000001727 in vivo Methods 0.000 description 1
- 238000009659 non-destructive testing Methods 0.000 description 1
- 238000009206 nuclear medicine Methods 0.000 description 1
- 210000000056 organ Anatomy 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 239000000523 sample Substances 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 241000894007 species Species 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
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
- G01R33/34046—Volume type coils, e.g. bird-cage coils; Quadrature bird-cage coils; Circularly polarised 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
- G01R33/34—Constructional details, e.g. resonators, specially adapted to MR
- G01R33/34046—Volume type coils, e.g. bird-cage coils; Quadrature bird-cage coils; Circularly polarised coils
- G01R33/34053—Solenoid coils; Toroidal 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
- G01R33/38—Systems for generation, homogenisation or stabilisation of the main or gradient magnetic field
- G01R33/381—Systems for generation, homogenisation or stabilisation of the main or gradient magnetic field using electromagnets
-
- 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
- G01R33/42—Screening
- G01R33/422—Screening of the radio frequency field
-
- 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
- G01R33/483—NMR imaging systems with selection of signals or spectra from particular regions of the volume, e.g. in vivo spectroscopy
- G01R33/4831—NMR imaging systems with selection of signals or spectra from particular regions of the volume, e.g. in vivo spectroscopy using B1 gradients, e.g. rotating frame techniques, use of surface coils
Landscapes
- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Magnetic Resonance Imaging Apparatus (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR8212858A FR2530816A1 (fr) | 1982-07-21 | 1982-07-21 | Systeme d'antennes radiofrequence pour l'examen des corps volumineux par resonance magnetique nucleaire et appareil d'imagerie utilisant un tel systeme |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR8212858A FR2530816A1 (fr) | 1982-07-21 | 1982-07-21 | Systeme d'antennes radiofrequence pour l'examen des corps volumineux par resonance magnetique nucleaire et appareil d'imagerie utilisant un tel systeme |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2530816A1 true FR2530816A1 (fr) | 1984-01-27 |
| FR2530816B1 FR2530816B1 (enrdf_load_stackoverflow) | 1985-03-01 |
Family
ID=9276238
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR8212858A Granted FR2530816A1 (fr) | 1982-07-21 | 1982-07-21 | Systeme d'antennes radiofrequence pour l'examen des corps volumineux par resonance magnetique nucleaire et appareil d'imagerie utilisant un tel systeme |
Country Status (1)
| Country | Link |
|---|---|
| FR (1) | FR2530816A1 (enrdf_load_stackoverflow) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0193783A1 (de) * | 1985-03-06 | 1986-09-10 | Siemens Aktiengesellschaft | Hochfrequenzantennensystem für Kernspintomographiegeräte |
| US4667160A (en) * | 1984-03-20 | 1987-05-19 | Siemens Aktiengesellschaft | High frequency antenna device in nuclear-spin tomography apparatus and method for operating same |
| EP0222982A1 (de) * | 1985-11-18 | 1987-05-27 | Siemens Aktiengesellschaft | Oberflächenspule für die Untersuchung mit Hilfe der kernmagnetischen Resonanz |
| EP0266398A4 (en) * | 1986-04-21 | 1990-06-27 | Univ Leland Stanford Junior | Reduced noise nmr localization system. |
| EP0317775A3 (en) * | 1987-11-25 | 1990-11-07 | General Electric Company | Balanced self-shielded gradient coils |
| DE3918743A1 (de) * | 1989-06-08 | 1990-12-13 | Philips Patentverwaltung | Hochfrequenz-quadraturspulenanordnung |
| EP0961131A3 (en) * | 1998-05-28 | 2001-07-04 | Marconi Electronic Systems Limited | Reduction of aliasing artifacts in MRI |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0033703A1 (fr) * | 1980-02-05 | 1981-08-12 | Thomson-Csf | Aimant sans circuit magnétique, à haute homogénéité, notamment pour imagerie par résonance magnétique nucléaire |
| EP0042254A2 (en) * | 1980-06-12 | 1981-12-23 | Kabushiki Kaisha Toshiba | Nuclear resonance apparatus including means for rotating the gradient of a magnetic field |
-
1982
- 1982-07-21 FR FR8212858A patent/FR2530816A1/fr active Granted
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0033703A1 (fr) * | 1980-02-05 | 1981-08-12 | Thomson-Csf | Aimant sans circuit magnétique, à haute homogénéité, notamment pour imagerie par résonance magnétique nucléaire |
| EP0042254A2 (en) * | 1980-06-12 | 1981-12-23 | Kabushiki Kaisha Toshiba | Nuclear resonance apparatus including means for rotating the gradient of a magnetic field |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4667160A (en) * | 1984-03-20 | 1987-05-19 | Siemens Aktiengesellschaft | High frequency antenna device in nuclear-spin tomography apparatus and method for operating same |
| EP0193783A1 (de) * | 1985-03-06 | 1986-09-10 | Siemens Aktiengesellschaft | Hochfrequenzantennensystem für Kernspintomographiegeräte |
| US4721915A (en) * | 1985-03-06 | 1988-01-26 | Siemens Aktiengesellschaft | High frequency antenna system for nuclear magnetic resonance tomography devices |
| EP0222982A1 (de) * | 1985-11-18 | 1987-05-27 | Siemens Aktiengesellschaft | Oberflächenspule für die Untersuchung mit Hilfe der kernmagnetischen Resonanz |
| EP0266398A4 (en) * | 1986-04-21 | 1990-06-27 | Univ Leland Stanford Junior | Reduced noise nmr localization system. |
| EP0317775A3 (en) * | 1987-11-25 | 1990-11-07 | General Electric Company | Balanced self-shielded gradient coils |
| DE3918743A1 (de) * | 1989-06-08 | 1990-12-13 | Philips Patentverwaltung | Hochfrequenz-quadraturspulenanordnung |
| EP0961131A3 (en) * | 1998-05-28 | 2001-07-04 | Marconi Electronic Systems Limited | Reduction of aliasing artifacts in MRI |
| US6307373B1 (en) | 1998-05-28 | 2001-10-23 | Picker International, Inc. | Anti-aliasing transmitter coil array for magnetic resonance |
Also Published As
| Publication number | Publication date |
|---|---|
| FR2530816B1 (enrdf_load_stackoverflow) | 1985-03-01 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| ST | Notification of lapse | ||
| RC | Opposition against decision of lapse | ||
| DA | Annulment of decision of lapse | ||
| ST | Notification of lapse |