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

Figure 9

Effect of the X-ray tube potential on the contrast-to-noise ratio. The Re-XCA consistently displays a greater CNR than the I-XCA from 120 to 220 kVp. The concentration of rhenium and iodine in the XCA was 200 mM. The XCA were imaged by planar X-ray imaging using the SARRP. All the scans were carried out with a current of 50 A and 0.1 mm of copper as additional filtration, that is, exposures X06 to X11 (see Table 2).