Erbium-Based Perfusion Contrast Agent for Small-Animal Microvessel Imaging

Figure 3

Rebinned 100 µm voxel images where the (a) maximum intensity projection (MIP) of a whole body perfused mouse demonstrates that the attenuation of the Er₂O₃ contrast agent in the vasculature is higher than the mouse’s skeletal structure. Quantitative measurements of attenuation (in HU) were obtained from regions drawn within heart (b), testes (c), inferior vena cava (d), and cortical bone (e).