Arthur Peter Wunderlich1,2, Eva Leithner1, Richard Fiedler3, Meinrad Beer1, Stefan Andreas Schmidt1, and Mika Lindén3
1Dept. of Diagnostic Radiology, Ulm University, Medical Center, Ulm, Germany, 2Section for Experimental Radiology, Ulm University, Medical Center, Ulm, Germany, 3Institute for Inorganic Chemistry II, Ulm University, Ulm, Germany
1Dept. of Diagnostic Radiology, Ulm University, Medical Center, Ulm, Germany, 2Section for Experimental Radiology, Ulm University, Medical Center, Ulm, Germany, 3Institute for Inorganic Chemistry II, Ulm University, Ulm, Germany
In a
mixture of different iron compounds, nanoparticles vs. diluted Fe3+ ions, relaxivity of one compound varyies
with the concentration of the other. This may be interpreted in the sense that interactions between different forms of iron are more complex than previously assumed.
Fig. 1. R2*
as function of nanoparticle concentration at different concentrations of added
FeCl3. Dashed lines are the linear regression lines, its equations and coefficients of determination R2 for linear correlations are given in the colors of corresponding symbols and lines.
Fig. 2. R2* as
function of FeCl3 concentration at different concentrations of added nanoparticles. Dashed lines are the linear regression lines, its equations and coefficients of determination R2 for linear correlations are given in the colors of corresponding symbols and lines.
