Figure 3From: Radiotherapy treatment planning with contrast-enhanced computed tomography: feasibility of dual-energy virtual unenhanced imaging for improved dose calculationsAttenuation measurements of iodine solutions at different iodine concentrations. Single-energy images were acquired at a tube voltage of 120 kVp. Mixed images and virtual unenhanced images were synthesized from dual-energy (100 kVp and 140 kVp with a tin filter) data.Back to article page