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Fig. 4 | Radiation Oncology

Fig. 4

From: Radiation-induced parotid changes in oropharyngeal cancer patients: the role of early functional imaging and patient−/treatment-related factors

Fig. 4

A 48-year-old man affected by a base of the tongue carcinoma: dose distribution overlaid on the central section of the parotid glands on axial CT (a); T2-weighted images before, at 2 weeks of radiotherapy and 8 weeks after radiotherapy (b) showing a small final parotid shrinkage; the corresponding maps of Ktrans in min− 1 (c) and IAUGC in a.u. (d), at baseline, indicating moderately perfused glands. Correspondingly, a slight difference was observed between the rates at which the DW-signal attenuation of the parotids decreases during RT (e)

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