ISSN:
1089-7623
Source:
AIP Digital Archive
Topics:
Physics
,
Electrical Engineering, Measurement and Control Technology
Notes:
The design and the characterization of a double tuned nuclear magnetic birdcage resonator is presented. It abandons quadrature drive and uses the two orthogonal modes of the birdcage for two different frequencies. In order to tune the birdcage to frequencies that are far apart, the number of legs is reduced to only four. This limits the homogeneity of the rf field, but enables the birdcage to be tuned to very different frequencies without further B1 field distortions. Following a brief explanation of the theory of the coil design, a 23Na 1H four leg birdcage for in vivo measurements on mice is presented. The performance of the coil is demonstrated in experiments on both a phantom and a mouse. © 2001 American Institute of Physics.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1063/1.1367366
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