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. Author manuscript; available in PMC: 2018 Feb 1.
Published in final edited form as: Magn Reson Imaging. 2016 Oct 27;36:93–97. doi: 10.1016/j.mri.2016.10.023

Fig. 1.

Fig. 1

(a) Lower part of the 3T sodium knee coil. Inside the coil there are four calibration standards fixed in a phantom holder. A concave cover with a hard smooth surface (as pointed out by the white arrow) is slid open to display the phantoms. (b) During imaging, the skin is in direct contact with the surface of the cover.