螺旋CT动态增强扫描在孤立性肺结节良恶性诊断中的临床应用价值

目的：探讨螺旋CT动态增强扫描在良恶性鉴别诊断中的临床应用价值。方法：选择行孤立性肺结节病灶动态增强扫描的62例患者作为研究对象。针对恶性结节、良性结节、炎性结节的情况，对各组之间的动态增强参数进行比较。结果：恶性和炎性结节的强化峰值一般≥20Hu，良性结节的强化峰值一般≤15Hu；多数恶性结节（58．29％）为均匀强化，炎性组中多数病例（66．67％）呈周边环状强化。结论：良、恶性SPN可通过CT动态增强扫描观察PH、CT、强化模式方面的不同来反映其微血管构成的差异，从而对SPN的定性诊断提供帮助。

Clinical application of dynamic enhRnced scan with spiral CT in benign or malignant diagnosis of solitary pulmonary nodule

Objective：To discuss the clinical application value of dynamic enhanced scan with spiral CT in the benign or malignant diagnosis of solitary pulmonary nodule （SPN）. Methods：62 patients with solitary pulmonary nodule treated by dynamic enhanced scan were chosen for study. For the situation of benign nodule, malignant nodule and inflammatory nodule, dynamic enhancement parameters of the groups were compared. Results：The enhanced peak of malignant and inflammatory nodules were higher than or equal to 20 Hu, while that of benign nodule was lower than or equal to 15 Hu. Most malignant nodule（58.29%） were even enhanced ,while most inflamma- tory nodules （66.67%） were peripheral ring-like enhanced. Conclusion：The difference of microvessel constitute in benign and malignant SPN could be reflected by CT dynamic enhanced scan to observe the difference of PH, CT and enhanced mode.Thus it is useful to the qualitative diagnosis of SPN.