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Figure 8 | Radiation Oncology

Figure 8

From: Optimization of extracranial stereotactic radiation therapy of small lung lesions using accurate dose calculation algorithms

Figure 8

Moving targets were simulated by shifting the isocenter relative to the phantom by 5mm in the lateral direction and recalculating the plan with the Collapsed Cone algorithm. The original CTV (center at -7.5cm) and corresponding profile are shown in magenta, the PTV in black symmetrically around the CTV. The blue profile shows the change in dose distribution for the higher density target tissue moved laterally by 5mm (CTV borders in blue, center at -8.0cm). The intersection of the profiles with the borders of the CTV shows, that the CTV is covered by the 95% isodose in both cases.

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Radiation Oncology

ISSN: 1748-717X

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