摘要
目的用多因素回顾性研究的方法,探讨肺内直径≤3cm的孤立性结节(SPN)定性诊断的可能性,并评价多排螺旋CT的鉴别诊断价值。方法搜集经证实的直径≤3cm的SPNs病例80例,通过对病灶的强化时间-密度曲线(T-DC)模式、肺内结节的CT形态学特征等行多因素分析。探讨SPN定性诊断的相关因素。结果恶性、良性及炎性结节显示了不同的T-DC模式。深分叶征、钙化在小肺癌与良性结节两组病例间显著统计学差异。肺结节内点状、多点状透亮影在良、恶性结节中出现率有显著差异。结论多排螺旋CT对病变全方位显示,动态对比增强功能CT提供了SPN血流模式的定量信息,结合临床资料,能较好地无创地定性诊断,从而提高肺内孤立性小结节的诊断率。
Objective Using multi-factor retrospective study approach to explore the possibility of diagnosis for solitary pulmonary nodule （SPN） and to evaluate the value of multi-slice spiral CT in differential diagnosis. Methods 80 cases of confirmed SPNs （diameter ≤3cm） were collected, the time-density curve （T-DC） pattern, CT morphological character of the SPN were analyzed with multiple factor analysis. Results Malignant, benign and inflammatory nodules showed different pattern of T-DC. There were statistical significant for deep lobulation, calcification appearance between small lung cancer and benign nodules. There were statistical significant in the appearance rate of punctate, multi-point video-like translucent in pulmonary nodules between benign and malignant nodules. Conclusion The lesion can be displayed by multi-slice spiral CT completely and the blood flow patterns of SPN can be provided by dynamic contrast-enhanced functional CT. Combining with clinical data, SPN can be well characterized and evaluated and to improve the diagnosis rate of SPN.
出处
《影像诊断与介入放射学》
2009年第4期180-182,共3页
Diagnostic Imaging & Interventional Radiology
关键词
肺结节
多排螺旋CT
动态增强
Pulmonary nodules
Multi-slice spiral CT
Dynamic contrast-enhanced
