JPH0726924B2 - Ｎｍｒスペクトルを発生させる高周波パルスのカスケード - Google Patents
Ｎｍｒスペクトルを発生させる高周波パルスのカスケードInfo
- Publication number
- JPH0726924B2 JPH0726924B2 JP2513615A JP51361590A JPH0726924B2 JP H0726924 B2 JPH0726924 B2 JP H0726924B2 JP 2513615 A JP2513615 A JP 2513615A JP 51361590 A JP51361590 A JP 51361590A JP H0726924 B2 JPH0726924 B2 JP H0726924B2
- Authority
- JP
- Japan
- Prior art keywords
- max
- pulse
- amplitude
- sequence
- pulses
- 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 - Fee Related
Links
- 238000000655 nuclear magnetic resonance spectrum Methods 0.000 title description 2
- 238000000034 method Methods 0.000 claims description 48
- 230000006870 function Effects 0.000 claims description 40
- 230000004044 response Effects 0.000 claims description 31
- 230000005284 excitation Effects 0.000 claims description 27
- 238000005481 NMR spectroscopy Methods 0.000 claims description 24
- 238000005457 optimization Methods 0.000 claims description 18
- 230000005415 magnetization Effects 0.000 claims description 14
- 238000009826 distribution Methods 0.000 claims description 11
- 238000001208 nuclear magnetic resonance pulse sequence Methods 0.000 claims description 8
- 238000001228 spectrum Methods 0.000 claims description 6
- 230000008859 change Effects 0.000 claims description 4
- 238000005100 correlation spectroscopy Methods 0.000 claims description 3
- 238000003325 tomography Methods 0.000 claims description 3
- 238000010995 multi-dimensional NMR spectroscopy Methods 0.000 claims description 2
- 238000003860 storage Methods 0.000 claims description 2
- 230000005428 wave function Effects 0.000 claims description 2
- 230000000875 corresponding effect Effects 0.000 description 5
- 238000002474 experimental method Methods 0.000 description 5
- 238000004088 simulation Methods 0.000 description 5
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 3
- 239000006185 dispersion Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000001419 dependent effect Effects 0.000 description 2
- 238000003384 imaging method Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 238000004611 spectroscopical analysis Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- MJSNUBOCVAKFIJ-LNTINUHCSA-N chromium;(z)-4-oxoniumylidenepent-2-en-2-olate Chemical compound [Cr].C\C(O)=C\C(C)=O.C\C(O)=C\C(C)=O.C\C(O)=C\C(C)=O MJSNUBOCVAKFIJ-LNTINUHCSA-N 0.000 description 1
- 238000002939 conjugate gradient method Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- 230000002596 correlated effect Effects 0.000 description 1
- 238000013480 data collection Methods 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 230000007704 transition Effects 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
- G01R33/44—Arrangements or instruments for measuring magnetic variables involving magnetic resonance using nuclear magnetic resonance [NMR]
- G01R33/446—Multifrequency selective RF pulses, e.g. multinuclear acquisition mode
-
- 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
-
- 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]
- G01R33/46—NMR spectroscopy
- G01R33/4616—NMR spectroscopy using specific RF pulses or specific modulation schemes, e.g. stochastic excitation, adiabatic RF pulses, composite pulses, binomial pulses, Shinnar-le-Roux pulses, spectrally selective pulses not being used for spatial selection
Landscapes
- Physics & Mathematics (AREA)
- High Energy & Nuclear Physics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Radiology & Medical Imaging (AREA)
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Magnetic Resonance Imaging Apparatus (AREA)
- Pallets (AREA)
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE3940633.4 | 1989-12-08 | ||
| DE3940633A DE3940633A1 (de) | 1989-12-08 | 1989-12-08 | Gauss-impuls-kaskade |
| PCT/EP1990/001681 WO1991009322A1 (de) | 1989-12-08 | 1990-10-06 | Hf-impuls-kaskade zur erzeugung von nmr-spektren |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH05501300A JPH05501300A (ja) | 1993-03-11 |
| JPH0726924B2 true JPH0726924B2 (ja) | 1995-03-29 |
Family
ID=6395085
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2513615A Expired - Fee Related JPH0726924B2 (ja) | 1989-12-08 | 1990-10-06 | Ｎｍｒスペクトルを発生させる高周波パルスのカスケード |
Country Status (5)
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4126169C2 (de) * | 1991-08-07 | 1995-09-07 | Siemens Ag | Verfahren zur Bestimmung optimierter Hochfrequenzpulsformen für selektive Anregung |
| US5619138A (en) * | 1995-08-21 | 1997-04-08 | National Research Council Of Canada | Method of providing an RF pulse for use in NMR |
| US6064207A (en) * | 1996-07-26 | 2000-05-16 | Varian Associates, Inc. | Adiabatic pulses for wideband inversion and broadband decoupling |
| US6404198B1 (en) * | 1997-09-26 | 2002-06-11 | Case Western Reserve University | Magnetic resonance imaging (MRI) optimized chemical-shift excitation |
| US7500053B1 (en) * | 2004-11-05 | 2009-03-03 | Commvvault Systems, Inc. | Method and system for grouping storage system components |
| JP2007068796A (ja) * | 2005-09-08 | 2007-03-22 | Ge Medical Systems Global Technology Co Llc | Ｒｆパルス印加方法およびｍｒｉ装置 |
| US7982462B2 (en) * | 2007-06-08 | 2011-07-19 | New York University | System, method and computer accessible medium for magnetic resonance spectroscopic imaging |
| JP6495930B2 (ja) * | 2013-10-28 | 2019-04-03 | シュルムバーガー テクノロジー ベスローテン フェンノートシャップ | Ｎｍｒシステム用の集積回路 |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3586813T2 (de) * | 1984-04-05 | 1993-04-08 | Varian Associates | Magnetische kernresonanzimpulsfolgen fuer raeumliche selektivitaet. |
| DE3434161A1 (de) * | 1984-09-18 | 1986-03-27 | Bruker Medizintechnik Gmbh, 7512 Rheinstetten | Verfahren zum messen der magnetischen kernresonanz |
| JPH0738849B2 (ja) * | 1984-12-21 | 1995-05-01 | 株式会社日立メディコ | Ｎｍｒイメ−ジング装置 |
| US4682106A (en) * | 1985-03-21 | 1987-07-21 | General Electric Company | Methods of, and apparatus for, proton decoupling in nuclear magnetic resonance spectroscopy |
| DE3538464A1 (de) * | 1985-10-29 | 1987-04-30 | Siemens Ag | Verfahren zum betrieb eines kernspinresonanzgeraetes fuer die schnelle bestimmung der laengsrelaxationszeit t(pfeil abwaerts)1(pfeil abwaerts) |
| US4746863A (en) * | 1985-11-07 | 1988-05-24 | The Regents Of The University Of California | Contiguous slices in multi-slice MRI |
| DE3543123A1 (de) * | 1985-12-06 | 1987-06-11 | Spectrospin Ag | Verfahren zur aufnahme von kernresonanzspektren |
| IL84152A (en) * | 1987-10-12 | 1991-06-10 | Elscint Ltd | Magnetic resonance spectroscopic measurements of restricted volumes |
| DE68914440T2 (de) * | 1989-04-22 | 1994-07-28 | Spectrospin Ag | Verfahren zur Anregung der transversalen Magnetisierung bei magnetischen Kernresonanz-Impuls-Experimenten. |
-
1989
- 1989-12-08 DE DE3940633A patent/DE3940633A1/de active Granted
-
1990
- 1990-10-06 US US07/852,235 patent/US5285159A/en not_active Expired - Lifetime
- 1990-10-06 WO PCT/EP1990/001681 patent/WO1991009322A1/de active IP Right Grant
- 1990-10-06 JP JP2513615A patent/JPH0726924B2/ja not_active Expired - Fee Related
- 1990-10-06 EP EP90914701A patent/EP0502850B1/de not_active Expired - Lifetime
- 1990-10-06 DE DE90914701T patent/DE59005293D1/de not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH05501300A (ja) | 1993-03-11 |
| WO1991009322A1 (de) | 1991-06-27 |
| DE59005293D1 (de) | 1994-05-11 |
| US5285159A (en) | 1994-02-08 |
| EP0502850A1 (de) | 1992-09-16 |
| DE3940633A1 (de) | 1991-06-13 |
| EP0502850B1 (de) | 1994-04-06 |
| DE3940633C2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1992-10-22 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| LAPS | Cancellation because of no payment of annual fees |