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1. (WO1985004727) SPATIALLY SELECTIVE NUCLEAR MAGNETIC RESONANCE PULSE SEQUENCES
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/1985/004727 International Application No.: PCT/US1985/000593
Publication Date: 24.10.1985 International Filing Date: 04.04.1985
IPC:
G01R 33/46 (2006.01) ,G01R 33/483 (2006.01) ,G01R 33/32 (2006.01)
G PHYSICS
01
MEASURING; TESTING
R
MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
33
Arrangements or instruments for measuring magnetic variables
20
involving magnetic resonance
44
using nuclear magnetic resonance (NMR)
46
NMR spectroscopy
G PHYSICS
01
MEASURING; TESTING
R
MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
33
Arrangements or instruments for measuring magnetic variables
20
involving magnetic resonance
44
using nuclear magnetic resonance (NMR)
48
NMR imaging systems
483
with selection of signal or spectra from particular regions of the volume, e.g. in vivo spectroscopy
G PHYSICS
01
MEASURING; TESTING
R
MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
33
Arrangements or instruments for measuring magnetic variables
20
involving magnetic resonance
28
Details of apparatus provided for in groups G01R33/44-G01R33/6496
32
Excitation or detection systems, e.g. using radiofrequency signals
Applicants:
VARIAN ASSOCIATES, INC. [US/US]; 611 Hansen Way Palo Alto, CA 94303, US (AllExceptUS)
SHAKA, Athan, J. [US/GB]; GB (UsOnly)
Inventors:
SHAKA, Athan, J.; GB
Agent:
BERKOWITZ, Edward, H.; Varian Associates, Inc. 611 Hansen Way Palo Alto, CA 94303, US
Priority Data:
PG 443205.04.1984AU
Title (EN) SPATIALLY SELECTIVE NUCLEAR MAGNETIC RESONANCE PULSE SEQUENCES
(FR) SEQUENCES D'IMPULSIONS A RESONANCE MAGNETIQUE NUCLEAIRE SPATIALEMENT SELECTIVES
Abstract:
(EN) Increased spatial sensitivity (Fig. 4) or spatial tolerance (Fig. 1) in selectively manipulated NMR sample analysis excited from a spatially inhomogeneous RF field using pulse sequences which operate to exclude all spins deviating from a selected initial orientation (Figs. 4 and 5) or to inclusively extend the applicable flip angles over a range of initial spin orientation (Fig. 1)
(FR) Accroissement de la sensibilité spatiale (Fig. 4) ou de la tolérance spatiale (Fig. 1) dans l'analyse d'un échantillon à résonance magnétique nucléaire (NMR) manipulé de manière sélective et excité à partir d'un champ HF spatialement non homogène en utilisant des séquences d'impulsions qui agissent de manière à exclure tous les spins déviant d'une orientation initiale sélectionnée (Figs. 4 et 5) ou à étendre inclusivement les angles de fustigation applicables sur une gamme d'orientation initiale du spin (Fig. 1).
Designated States: JP, US
European Patent Office (AT, BE, CH, DE, FR, GB, IT, LU, NL, SE)
Publication Language: English (EN)
Filing Language: English (EN)
Also published as:
EP0179816US4710718JPS61501794