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目的探讨增强CT扫描在下咽癌和喉癌术前TNM分期中的作用。方法收集85例手术证实的下咽癌及喉癌病例,术前行增强CT扫描检查。2位有多年临床工作经验的放射学专家在不知道手术病理结果的情况下分析CT影像资料,同临床资料相结合,共同判定肿瘤TNM分期,结果同手术结果相对照,行2个相关样本W ilcoxon秩和检验,P<0.05具有统计学意义。结果85例下咽癌或喉癌在没有CT检查结构仅根据临床资料分期的准确性为70.1%,将临床资料同CT检查结果相结合准确性为87.1%,诊断准确率显著提高,P值为0.001。结论下咽癌及喉癌术前CT检查可明确肿瘤的浸润范围、甲状软骨受侵及颈部淋巴结转移的情况,结合临床资料可明显提高肿瘤分期的准确性。
Objective To investigate the role of enhanced CT in preoperative TNM staging of hypopharyngeal carcinoma and laryngeal carcinoma. Methods Eighty-five cases of hypopharyngeal and laryngeal carcinoma confirmed by surgery were enrolled in this study. CT scanning was performed preoperatively. Two radiologists with many years of clinical experience analyzed CT image data without knowing the pathological results and combined with clinical data to determine the TNM staging of the tumor. The results were compared with the surgical results. Two related samples W ilcoxon rank sum test, P <0.05 was statistically significant. Results 85 cases of hypopharyngeal cancer or laryngeal cancer in the absence of CT examination based on clinical data staging accuracy of 70.1%, the clinical data with the CT examination results combined accuracy of 87.1%, the diagnostic accuracy was significantly increased, P value 0.001. Conclusions The preoperative CT examination of hypopharyngeal carcinoma and laryngeal carcinoma can confirm the extent of tumor infiltration, thyroid cartilage invasion and cervical lymph node metastasis. Combined with clinical data, the accuracy of tumor staging can be obviously improved.