Magnetic resonance imaging coil for applying NMR and ESR pulses
AssigneeInstrumentarium Corp.
InventorGosta J. Ehnholm
Life of this patent
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Abstract
A magnetic resonance imaging apparatus comprising device for applying a magnetic field to a sample to be imaged, device for applying pulses of MR transition-exciting electromagnetic radiation to the sample, an NMR signal coil for detecting the resulting radiation from the sample, and device for appling pulses of electromagnetic radiation to the sample for stimulating coupled ESR transitions, in which a pulse generating device is coupled to the NMR signal coil and antennas are coupled to the coil and disposed at plural positions along the coil, whereby pulses for stimulating coupled ESR transitions may be transmitted from the pulse generating device through the coil to the antennas and thence into the sample, the antennas being arranged to give a predominantly magnetic coupling to the sample.
Claims15
A method of magnetic resonance imaging using dynamic polarization, comprising applying a magnetic field to a sample to be imaged, applying pulses of MR transition exciting electromagnetic radiation to the sample, applying pulses of electromagnetic radiation for stimulating coupled ESR transitions and detecting the resulting radiation from the sample with an NMR signal coil, characterized by applying the ESR pulses with feed lines passing through the NMR signal coil conductor to antennas arranged to give a predominantly magnetic coupling to said sample.
Magnetic resonance imaging apparatus comprising means for applying a magnetic field to a sample to be imaged, means for applying pulses of MR transition-exciting electromagnetic radiation to the sample, an NMR signal coil for detecting the resulting radiation from the sample, and means for applying pulses of electromagnetic radiation to the sample for stimulating coupled ESR transitions, characterized in that a pulse generating means is coupled to the NMR signal coil and antenna means is coupled to the coil and disposed at plural positions along the coil, whereby pulses for stimulating coupled ESR transitions may be transmitted from the pulse generating means through the coil to the antenna means and thence into the sample.
Dependencies are inferred from the claim text.