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鼻咽癌(NPC)是头颈部发病率较高的肿瘤之一,放疗是其主要的治疗方法。放射性脑损伤是NPC患者放疗后较为严重的晚期并发症之一。随着3维适形及调强放疗技术的应用,放射性脑损伤的发生率较2维放疗时代明显下降,但由于目前仍无明确有效的治疗方法,且在临床和影像学上有时难以与肿瘤复发相区分,其临床重要性仍不容忽视。
Nasopharyngeal carcinoma (NPC) is one of the most frequently occurring cancers of the head and neck. Radiotherapy is the main treatment. Radiation brain injury is one of the more serious late complications of NPC after radiotherapy. With the application of 3-D conformal and intensity modulated radiotherapy, the incidence of radiation-induced brain injury is significantly lower than that of 2-D radiation therapy. However, as there is no clear and effective treatment method at present, it is sometimes difficult to find clinical and radiological evidence of tumor Recurrence phase distinction, its clinical importance can not be ignored.