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. Author manuscript; available in PMC: 2010 May 13.
Published in final edited form as: Angew Chem Int Ed Engl. 2010 Mar 22;49(13):2382–2384. doi: 10.1002/anie.201000075

Figure 2.

Figure 2

T1-weighted MR images (A and C, T1 values (ms) listed) and PET images (B and D, PET intensities (a.u.) listed) of phantoms at pH 6.5 (tube 1), 6.8 (2), 7.1 (3), 7.4 (4), and 7.8 (5). Phantoms in images A and B have the same concentration (0.45 mM); phantoms in images C and D have the following concentrations: 0.31 mM (1), 0.33 mM (2), 0.38 mM), 0.42 mM (4), 0.45 mM (5).