Figure 2
From: Head and neck irradiation modulates pharmacokinetics of 5-fluorouracil and cisplatin
An example of isodose distribution using different irradiation techniques delivering 2 Gy to the tumor bed for one nasopharyngeal carcinoma patient with transverse, coronal and sagittal view. A) The conventional radiation therapy (2DRT). B) Three-dimensional conformal radiotherapy (3DCRT). C) Intensive modulated radiotherapy (IMRT). D) Helical tomotherapy (HT).