多层螺旋CT薄层扫描MPR重建对周围型小肺癌的诊断价值

Value of diagnosis with multi-slice spiral CT in peripheral small lung carcinoma

目的:探讨多层螺旋CT薄层扫描及MPR重建对周围型小肺癌的征象显示率及诊断价值。方法:对经手术病理证实的15例周围型小肺癌进行了多层螺旋CT常规扫描,并对病灶区域薄层重建及MPR多层面重建观察,8例行动态增强扫描。结果:薄层MPR重建对周围型小肺癌的征象显示率明显高于常规扫描,具体是:薄层MPR显示分叶征12例,常规扫描显示10例(12/10)、薄层MPR显示空泡征3例,常规扫描2例(3/2)、薄层MPR显示小结节堆砌征5例,常规扫描3例(5/3)、薄层MPR显示支气管通气征4例,常规扫描显示1例(4/1)、薄层MPR显示毛刺征9例,常规扫描显示5例(9/5)、薄层MPR显示胸膜凹陷征5例,常规扫描发现2例(5/2)。结论:多层螺旋CT薄层扫描及MPR重建对周围型小肺癌的征象显示率高,可以弥补横断位图像显示肿瘤征象不全面的缺点,在诊断及鉴别诊断方面具有较高的临床应用价值。

Objective：To investigate the value of multi-planar reconstruction（MPR）of multi-slice spiral CT in imaging and diagnosing peripheral small lung carcinoma. Methods： Fifteen patients with peripheral small lung cancer were all checked with multi-slice spiral CT and multl-planar reconstruction, and eight cases were performed with dynamic contrast - enhanced scans. Results： On thin-slice images and MPR images was significantly higher draft that on routine scans in peripheral small lung carcinoma. The incidence contrast MPR and routine method is of sublobe sign （12/10）, vacuole sign （3/2）, node-fusion phenomenon （5/3）, air-bmnchogram （4/1）, marginal thorn sign （9/5）, pleural indentation sign （5/2）. Conclusion： MPR images of multi-slice spiral CT, complementing delineation of the tumoral findings, which incompletely rated on routine axial images, Multi-slice spiral CT thin-slice images and multi-planar reconstruction have effective value in the diagnosis and differential diagnosis for peripheral small lung cancer.