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Figure 1 | Radiation Oncology

Figure 1

From: Radiobiological evaluation of forward and inverse IMRT using different fractionations for head and neck tumours

Figure 1

Beams eye view of the posterior portal used in the IFP technique. This portal is composed by three segments: the first was conformal to the total PTV, whereas the second and third segments irradiated the PTV lying on the right and left side of the spinal cord, respectively. In this patient, the PTV1 includes the primary tumour and an adenopathy shown in brown. The high risk lymph nodes, PTV2, are shown in red and the low risk lymph nodes are shown in orange.

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Radiation Oncology

ISSN: 1748-717X

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