LOW-NOISE MAGNETIC RESONANCE IMAGING USING LOW HARMONIC PULSE SEQUENCES

LOW-NOISE MAGNETIC RESONANCE IMAGING USING LOW HARMONIC PULSE SEQUENCES

Systems and method for magnetic resonance imaging are disclosed which utilize sinusoidal gradient waveforms to drive gradient coils in an MRI system. The sinusoidal gradient waveforms may be applied on all two or more (e.g. three) gradient axes to produce a relatively pure acoustic tone. In certain...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: MCKINNON GRAEME COLIN, HARDY CHRISTOPHER JUDSON
Format: Patent
Sprache:eng
Schlagworte:
MEASURING
MEASURING ELECTRIC VARIABLES
MEASURING MAGNETIC VARIABLES
PHYSICS
TESTING
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Beschreibung
Zusammenfassung:Systems and method for magnetic resonance imaging are disclosed which utilize sinusoidal gradient waveforms to drive gradient coils in an MRI system. The sinusoidal gradient waveforms may be applied on all two or more (e.g. three) gradient axes to produce a relatively pure acoustic tone. In certain embodiments, gradient directions may be spiraled in three-dimensions to generate a radial pin-cushion k-space trajectory