Figure 1.
In vitro relaxometry characteristics of iron particles. Dilutions of ferumoxides 10-nm particles (light gray bars) and Bangs 0.9-μm particles (relative size of magnetite core is 760 nm; dark gray bars) were prepared in 2% agarose gels. The final concentration of iron particles is given on the x-axis, and the signal intensities of T2*-weighted images are shown on the y-axis. These are data acquired at 4.7 T with a TE of 7 milliseconds.
