ausblenden:
Schlagwörter:
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Zusammenfassung:
Although the SNR of conventional phased arrays is high near the coils, their sensitivity is similar to that of a volume coil near the center of a head. Substantial improvement can be obtained if the volume transmit coil
is used for simultaneous reception with the array. To avoid interactions between the
array and the volume coil, counter rotating current (CRC) surface coils can be used. A six-coil CRC phased array optimized for
spectroscopic measurements of the human hippocampus was constructed. 40%
increase in SNR was obtained in comparison to the volume coil or the array when used individually for reception.
