肺结节的CT特征分析

Analysis of CT features of pulmonary nodules

目的收集CT扫描发现的肺结节,分析其在CT图像上的形态特征。方法收集查体发现并行CT扫描的60例肺内有结节的患者,分析其大小、分布、结节特征及其随访结果。结果结节直径2 mm～30 mm,平均直径5.9 mm。其中55%≤5 mm;36%,6～10 mm;9%>10 mm。结节分布较均匀。84%是固体实性结节,79%结节无分叶。81%结节在随访期间完全消失或持续无变化,19%结节在随访期间增大。结论随访里消失或持续存在但大小无变化的肺结节可以认为是良性结节,而在随访中增大的结节更可能是恶性结节。直径≤10 mm,没有分叶的结节多是良性结节,而边缘清晰的结节多是恶性结节。

Objective To analyze the morphological features of pulmonary nodules found by CT scan. Methods 60 patients with pulmonary nodules were selected, and the size, distribution, characteristics of nodules and its fallow-up results were analyzed. Re- suits The diameters of nodules varied from 2 mm to 30 mm, and the average diameter was 5.9 mm. The diameters less than 5 mm took up 55%, 6 ～ 10 mm accounting 36%, and 9% larger than 10 mm. The nodules were evenly distributed, which included 84% solid and 79% without leaf. 81% of the nodules completely disappeared or didn＇t change during follow-up time, and 19% of nodules augmented during follow-up time. Conclusion The diameters of pulmonary nodules, which disappeared or continued unchanged in the follow-up, are less than or equal with 10 mm without leaf. The continued augmented nodules have clear edge shapes, and the disappear time lasts from a few days to a few years.