Dual-tuned RF coil for MRI spectroscopy
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United States of America Patent
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Aug 20, 1991
Grant Date -
N/A
app pub date -
Jan 16, 1990
filing date -
Jan 16, 1990
priority date (Note) -
Expired
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Abstract
A hybrid bird cage/Helmholtz RF coil provides a single composite RF coil for MRI spectroscopy involving at least two NMR nuclear species at respectively different RF frequencies. The bird cage portion may be tuned to the lower NMR frequency and coupled to a pair of quadrature-phase input/output ports so as to provide needed extra sensitivity and signal-to-noise ratio. At least one further RF input/output port provides coupling for a second, higher, MNR RF frequency.
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