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. Author manuscript; available in PMC: 2021 Aug 25.
Published in final edited form as: Int J Oncol. 2009 Oct;35(4):797–804. doi: 10.3892/ijo_00000392

Figure 1.

Figure 1.

In vitro measurements using capillary tubes filled with PBS and USPIO at concentrations of 0.36, 0.9, 1.8, 2.39, 4.48 and 8.95 mM Fe (dilutions of Molday ION™ in PBS: 1/500, 1/200, 1/100, 1/75, 1/40 and 1/20). (A), GE image showing the appearance of signal loss at 1.8 mM and susceptibility artifact originating at 4.48 mM. (B), Relative intensities from each tube as a function of Fe concentration of USPIO. (C), (ΔR2*) vs. Fe concentration of USPIO. Slope = 106×103 (±5×103) s−1M−1. The point marked by asterisk is inaccurate estimate resulting from signals approaching noise at USPIO concentration of 4.48 and above.