Cheremisin V M, Turanov N L, Tiurin I E
Departament of Roentgenology and Radiation, Military Medical Academy, Saint Petersburg.
Vestn Rentgenol Radiol. 1997 Nov-Dec(6):4-11.
To define the potentialities of conventional computed tomography (CCT) and contrast-enhanced computed tomography (CECT) in the the evaluation of spread of central-type lung cancer, 141 patients were studied. The results of the studies were compared with the data of surgical interventions in 86 patients. The analysis of their efficiency was based on the examination of the accuracy, sensitivity, and specificity of each technique. Analyzing the findings showed that the potentialities of CECT exceeded those of CCT. There were the most manifest differences in the accuracy and sensitivity of these techniques. This was due to the fact that CECT was the leading imaging of vessels, such as the pulmonary artery, superior cava, aorta, which in turn greatly reduced the number of false-negative and false-positive conclusions. No great differences were found in the efficiency of the techniques when the invasion of the trachea, esophagus, and vertebral column was determined.
为明确传统计算机断层扫描（CCT）和增强计算机断层扫描（CECT）在评估中央型肺癌扩散方面的潜力，对141例患者进行了研究。将研究结果与86例患者的手术干预数据进行了比较。对其有效性的分析基于对每种技术的准确性、敏感性和特异性的检查。分析结果表明，CECT的潜力超过了CCT。这些技术在准确性和敏感性方面存在最明显的差异。这是因为CECT是血管（如肺动脉、上腔静脉、主动脉）的主要成像方式，这反过来大大减少了假阴性和假阳性结论的数量。在确定气管、食管和脊柱侵犯情况时，两种技术的有效性没有发现很大差异。
