TABLE 2.
Diameter of particle containing iron oxide (nm) | [Iron] in tissue (μM) if 1 particle per (100 μm)3 voxel | No. of particles per cell to achieve 5 μM iron to produce ΔR2 ~ 2 in (100 μm)3 voxel |
---|---|---|
10 | 30 × 10−6 | 166 every cell |
100 | 30 × 10−3 | 1 every 6 cells |
1,000 | 30 | 1 every 6,000 cells |