NMR excitation method
AssigneeGE Medical Systems Global Technology Company, LLC
InventorPatrick H. Le Roux
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Abstract
A method of excitation for use during an NMR examination includes the subjecting of a body (92) to an orienting magnetic field (B0). The body (92) is adiabatically conditioned with a first series of Rf pulses (IP1–IPn). The body (92) is excited with a second series of RF pulses (E1–Em) in a presence of gradient field pulses. A resonance signal is emitted from the body (92) in response to the second series of RF pulses (E1–Em).
Claims23
A method of excitation for use during an NMR examination comprising:
- subjecting a body to an orienting magnetic field;
- adiabatically conditioning at least a portion of said body with a first plurality of radio frequency pulses;
- exciting said body with a second plurality of radio frequency pulses in a presence of gradient field pulses;
- and
- receiving at least one resonance signal emitted from said body in response to said second plurality of radio frequency pulses.
A magnetic resonance imaging system comprising:
- a magnet subjecting a body to an orienting magnetic field;
- and
- an antennae adiabatically conditioning at least a portion of said body with a first plurality of radio frequency pulses, said antennae exciting said body with a second plurality of radio frequency pulses in a presence of gradient field pulses;
- said antennae receiving at least one resonance signal emitted from said body in response to said second plurality of radio frequency pulses.
A method of excitation for use during an NMR examination comprising adiabatically conditioning at least a portion of a body with a progression of radio frequency pulses via a dampening by apodization of magnetization flip angles in preparation for an NMR measurement.
Dependencies are inferred from the claim text.