Skip to main content
Figure 4 | Radiation Oncology

Figure 4

From: Radiotherapy treatment planning with contrast-enhanced computed tomography: feasibility of dual-energy virtual unenhanced imaging for improved dose calculations

Figure 4

Representative CT images of the phantom for dose calculations. True unenhanced images (a) were obtained using the water phantom. Remaining enhanced images (b), virtual unenhanced (80/Sn140-kVp) images (c), and virtual unenhanced (100/Sn140-kVp) images (d) were obtained using the iodine phantom. The enhanced image (b) shows almost uniform attenuation, indicating no obvious iodine sedimentation. The virtual unenhanced image obtained using the 80/Sn140-kVp protocol shows dark-band artifact and increased image noise, while the image using the 100/Sn140-kVp protocol provided adequate image quality.

Back to article page

Radiation Oncology

ISSN: 1748-717X

Contact us