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Figure 3 | Radiation Oncology

Figure 3

From: Dosimetric impact of inter-observer variability for 3D conformal radiotherapy and volumetric modulated arc therapy: the rectal tumor target definition case

Figure 3

Isodose distributions for an example patient for (up) 3D-CRT (low) RA optimized on PTVs defined by two physicians before the introduction of guidelines. Doses are shown in colorwash ranging from 110% to 85% of the prescription dose. The arrows highlight an area (red rectangle in the figure) that is differently covered by 3D-CRT and RA. An under-dosage of the area is induced by the RA sculpting shape in comparison to the 3D-CRT’s coverage.

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Radiation Oncology

ISSN: 1748-717X

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