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A technique of double-resonant operation of 19F and 1H quadrature birdcage coils

✍ Scribed by Dongfeng Lu; Peter M. Joseph

Publisher
John Wiley and Sons
Year
1991
Tongue
English
Weight
347 KB
Volume
19
Category
Article
ISSN
0740-3194

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✦ Synopsis

A technique was developed to change the resonant frequency of a rotating field birdcage coil from 19F resonance (76.14 MHz) to 1H resonance (80.92 MHz). This was done by inserting an additional shield with a smaller radius on the coil which resonates at 19F. It was shown that the inhomogeneity introduced by reducing the shield radius is not significant. A working coil built with this technique produced both 19F and 1H images satisfactorily.

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