Contrast Media & Molecular Imaging

Research Article

Comparison of Rhenium and Iodine as Contrast Agents in X-Ray Imaging

Table 6

Mean pixel intensity of the coatings.
StructureMean pixel intensity
Vascular catheterPTCA dilatation catheter
Rhenium-doped polymer-based coating75.5 + 7.139.5 + 5.0
Rhenium-free polymer-based coating49.5 + 5.225.4 + 3.2
No coating31.3 + 5.018.9 + 2.3
The mean pixel intensity of each structure was calculated by taking the average of all the grey values (see Figure 15). For the uncoated sections, the analysis was performed on the plastic for the vascular catheter and the balloon for the PTCA dilatation catheter.