Bimodal Fluorescence and Magnetic Resonance Imaging Using Water-Soluble Hexagonal NaYF₄:Ce,Tb,Gd Nanocrystals

Figure 6

Series of in vivo 3D-𝑇₁ MR images at a few representative time points of different organs in rats. On the top of arrays (a) were axial images of liver and at the bottom (b) were coronal images of spleen and kidney. (c) Mean values of relative signal intensity of different organs collected from before and after NaYF₄:Ce,Tb,Gd NCs solution injection (rats No.-3).