CT增强扫描与MRI扫描对周围型肺肿块的临床鉴别诊断价值研究

The clinical differential diagnosis value of enhanced CT scanning and MRI scanning for peripheral pulmonary nodules

目的探讨CT增强扫描与MRI扫描对周围型肺肿块的鉴别诊断价值。方法选择2012年1月~2013年12月我院收治的周围型肺肿块患者66例,分别进行CT增强扫描、MRI检查及增强CT联合MRI检查,对比分析三种检查方法的诊断鉴别特异度及灵敏度。结果 CT增强扫描对周围型肺肿块诊断特异度为56.52%,灵敏度为81.39%;MRI特异度为52.38%,灵敏度为73.33%;增强CT联合MRI的特异度为78.26%,灵敏度为93.02%,MRI与CT增强扫描的特异度以及灵敏度比较无明显差异（P〉0.05）;CT增强联合MRI检查的特异度与灵敏度均显著高于CT增强扫描及MRI扫描（P〈0.05）。结论 CT增强扫描与MRI扫描对周围型肺肿块的鉴别诊断均各具优势,将两者联合应用能够提高临床鉴别诊断特异度与灵敏度,提高肿块良恶性判断准确性。

Objective To evaluate the differential diagnosis value of enhanced CT scanning and MRI scanning for peripheral pulmonary nodules. Methods A total of 66 cases of patients with peripheral pulmonary nodules in our hospital from January 2012 and December 2013 were collected, all received enhanced CT scan, MRI and enhanced CT combined MRI scan, the differential diagnosis specificity and sensitivity of the three methods were comparative analyzed.Results The specificity of enhanced CT scan for peripheral pulmonary nodules was 56.52%, the sensitivity was 81.39%;the specificity of MRI was 52.38%, the sensitivity was 73.33%; the specificity of enhanced CT combined MRI was78.26%, and the sensitivity was 93.02%. The specificity and sensitivity between enhanced CT and MRI had no significant difference（P〈0.05）; the specificity and sensitivity of enhanced CT combined MRI were significantly higher than those of simple enhanced CT scan and MRI scan（P〈0.05）. Conclusion Enhanced CT scanning and MRI scanning for peripheral pulmonary nodules each has advantages, the combination of the two applications can improve the clinical differential diagnosis specificity and sensitivity, and improve the accuracy of judgment of benign and malignant tumors.