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目的:探讨MRI对鼻咽癌和颅底骨转移的诊断价值,及MRI对放疗中、放疗后改变及放疗后残存与复发的评估价值,及其对医疗安全的保障价值。材料与方法:搜集30例鼻咽癌患者的诊断和治疗资料。全部病例均进行放疗前、放疗中及放疗后的MRI检查。放疗后状态的病例均追随3-6个月复查。结果:在30例鼻咽癌患者中,存在颅底骨骨转移病例11例。经放射治疗,21例呈放疗后状态,其中包括2例液化性坏死,6例凝固性坏死;9例放疗后残存。结论:MR平扫及增强扫描对鼻咽癌、鼻咽癌颅底骨转移、鼻咽癌放疗中、后改变及放疗后复发有较高的诊断、评估价值。
Objective: To investigate the diagnostic value of MRI in the diagnosis of nasopharyngeal carcinoma and skull base metastasis, and evaluate the value of MRI in radiotherapy, after radiotherapy and remnants and relapse after radiotherapy, and its value of medical security. Materials and Methods: To collect 30 cases of nasopharyngeal carcinoma in patients with diagnosis and treatment data. All cases were carried out before radiotherapy, radiotherapy and radiotherapy after MRI examination. Post-radiotherapy cases follow the 3-6 months review. Results: In 30 cases of nasopharyngeal carcinoma, there were 11 cases of skull base bone metastases. Radiotherapy, 21 cases were post-radiotherapy state, including 2 cases of liquefied necrosis, coagulation necrosis in 6 cases; 9 cases remained after radiotherapy. Conclusions: MR plain scan and enhanced scan have high diagnostic and evaluation value for nasopharyngeal carcinoma, skull base metastasis of nasopharyngeal carcinoma, mid-late radiotherapy and post-radiotherapy recurrence of nasopharyngeal carcinoma.