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Figure 5 | Radiation Oncology

Figure 5

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

Figure 5

Attenuation profiles. Attenuation values in HU are plotted against the pixel locations (shown in Figure 2b). The profile from the enhanced image (red line) shows almost uniform distribution of attenuation values with a slight cupping due to beam hardening, indicating no obvious iodine sedimentation. The profile from the virtual unenhanced images using the 100/Sn140-kVp protocol is quite stable, while the profile using the 80/Sn140-kVp protocol was highly fluctuated by dark-band artifacts.

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Radiation Oncology

ISSN: 1748-717X

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