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目的探讨螺旋CT多期增强扫描及三维重组技术在肾癌TNM分期上的应用价值。资料与方法对术前行CT检查并经病理证实的46例肾癌患者的三期增强扫描影像特点进行分析,对CT分期与术后病理TNM分期进行对照。结果在T分期方面,两者具有较高的一致性(K=0.919);在M分期方面,CT分期与手术病理分期有良好的一致性(K=0.657);N分期两者一致性较差(K=0.282)。结论螺旋CT多期增强扫描及三维重组技术对T期、M期的评价准确性高,但对N期评价准确性较差。
Objective To investigate the value of spiral CT multi-phase contrast-enhanced scanning and three-dimensional reconstruction in the TNM staging of renal cell carcinoma. Materials and Methods The characteristics of three-phase contrast-enhanced scanning in 46 cases of renal cell carcinoma confirmed by pathology before operation were analyzed. CT staging was compared with postoperative pathological TNM staging. Results There was a high consistency between the two in the staging of T (K = 0.919). There was a good agreement between the staging of CT and the pathological staging (K = 0.657) in M staging. The consistency of the N staging was poor (K = 0.282). Conclusion Spiral CT multi-phase contrast-enhanced scanning and three-dimensional reconstruction techniques have high accuracy in evaluating T phase and M phase, but their accuracy in evaluating N phase is poor.