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. Author manuscript; available in PMC: 2010 Jun 1.
Published in final edited form as: Magn Reson Imaging. 2009 Jan 13;27(5):594–600. doi: 10.1016/j.mri.2008.10.006

Fig 1.

Fig 1

(a) Time series T1-weighted images of rat brains before and at 12 and 24 h after intranasal MnCl2 injection (left column) and i.v. infusion of 9mg/kg of MnCl2 (right column). The averaged SNR time courses of the OB, HC, and Pit at 1, 12, 24, 36, and 48 h after (b) intranasal injection and (c) i.v. infusion of 9 mg/kg of MnCl2 (the error bar represents the standard error among animals). Significant early enhancement in HC and Pit indicates that the contrasts are due to systemic effects rather than tract tracing. (*: p < 0.05; **: p < 0.01, paired t-test compared to the first time point.)