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. Author manuscript; available in PMC: 2010 Apr 22.
Published in final edited form as: Magn Reson Med. 2002 Feb;47(2):284–291. doi: 10.1002/mrm.10054

FIG. 7.

FIG. 7

23Na MR image of a human patella with four calibration phantoms placed on top of the kneecap, as depicted in Fig. 1. The two bright circles are phantoms placed at the edge of the coil to identify its position.