SCT薄层扫描对肺内孤立结节的诊断价值

The significance of thin slice spiral CT in the solitary pulmonary nodule

目的:通过观察对比薄层螺旋CT与普通螺旋CT对肺内直径≤3cm结节的轮廓与肺结节肺界面的变化探讨薄层螺旋CT对肺内孤立结节的诊断意义。方法:对82例常规CT10mm螺旋CT发现的直径小于3cm的肺内孤立结节9对结节局部重新进行2mm薄层螺旋CT扫描9比较两种方法对结节的轮廓与肺结节肺界面变化的显示情况。全部病例经术后病理或细胞学证实。结果:薄层螺旋CT确诊73例,常规螺旋CT确诊34例。χ2=40.9,P<0.0019两者之间有显著差异。结论:薄层螺旋CT对结节的轮廓与肺结节肺界面变化的显示明显优于常规螺旋CT,有助于良恶性病变的鉴别诊断。

Objective： To evaluate the module-lung interfact of solitary pulmonary nodules （SPN）（diameter ≤ 3 cm） by comparing between conventional spiral CT and thin slice spiral CT. Methods： 82 cases SPN （diameter ≤3cm） which indicated by conventional spiral CT were perfomed thin slice CT and compared the re sul t s of different examination.All case were comfirmed by pathologically and clinically. Rusults： 73 cases were diagnosed by the thin slice spiral CT,34 cases were diagnosed by the conventional sprial CT. Conclusion： Thin slice spiral CT have advantage to do the differential diagnosis between malignancy and benignanly comparing with the conventional spiral CT.