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目的:通过本科近年来CT诊断并经病理证实的49例鼻咽癌的CT分析,体现CT检查对于鼻咽癌的早期诊断、鉴别诊断及分期有着重要作用。方法:采用Siemens Somatom AR Star螺旋CT扫描机,患者取仰卧位,以OM线为基线,从硬腭水平往上扫描,层厚5mm或2mm,间距5mm,扫完颅底。其中30例平扫,19例平扫加增强扫描。结果:49例鼻咽癌中,鳞状上皮癌22例,腺癌12例,泡状核细胞癌10例,未分化癌5例。结论:CT检查,特别是薄层CT扫描,已成为对鼻咽癌诊断、分期、放疗野设计及放疗后复查的主要检查手段。尤其对早期发现鼻咽癌及其侵犯周围组织的情况有很大的价值。
OBJECTIVE: CT analysis of 49 cases of nasopharyngeal carcinoma confirmed by CT in recent years shows that CT examination plays an important role in the early diagnosis, differential diagnosis and staging of nasopharyngeal carcinoma. Methods: Using Siemens Somatom AR Star spiral CT scanner, the supine position was taken and the OM line was taken as the baseline. Scanning from the level of the hard palate, the thickness of the layer was 5mm or 2mm and the interval was 5mm. Among them, 30 cases were plain scan and 19 cases were plain scan and contrast-enhanced scan. Results: In 49 cases of nasopharyngeal carcinoma, there were 22 cases of squamous cell carcinoma, 12 cases of adenocarcinoma, 10 cases of vesicular cell carcinoma and 5 cases of undifferentiated carcinoma. Conclusion: CT examination, especially thin-slice CT scan, has become the main examination method for the diagnosis, staging and radiotherapy field design of nasopharyngeal carcinoma and the post-radiotherapy review. Especially for early detection of nasopharyngeal carcinoma and its invasion of the surrounding tissue has great value.