Computed Tomographic Findings of Skull Base Bony Changes During and After Radiotherapy for Nasopharyngeal Carcinoma

Objective To explore the computed tomographic(CT) findings of skull base bony changes during and after radiotherapy(RT) for nasopharyngeal carcinoma(NPC),assist the CT-based diagnosis and long-term follow-up on skull base bony changes after radiotherapy.Methods 130 patients with NPC were included.60 patients had plain CT scan before RT,at 20 Gy and at 60 Gy.The other 70 patients had Enhanced CT scan before RT,at 40 Gy and three months after...