. Author manuscript; available in PMC: 2019 Jun 1.

Published in final edited form as: NMR Biomed. 2018 Apr 19;31(6):e3921. doi: 10.1002/nbm.3921

Table 1.

The resonant frequency and quality factor of the reference coil are altered the same way by loading a mouse brain or the homogeneous phantom into the coil, indicating that SNR measurements on the homogenous phantom are representative of mouse brain imaging.

	Resonant Frequency (MHz)

	Unloaded	Loaded with Brain	Loaded with Phantom

Reference Coil	300.36	299.41	299.55
	Quality Factor

	Unloaded	Loaded with Brain	Loaded with Phantom

Reference Coil (Unshielded)	720	380	395
Coil 1 (Shielded)	705	370	385
Coil 2 (Shielded)	710	380	380

Also, the quality factor of each shielded coil in the two-coil system remains similar to the unshielded reference coil, demonstrating that the shield causes negligible RF losses, and that all three coils are almost identical.