螺旋CT多平面重建诊断周围型肺癌的价值

Multi-planar Reconstruction of Spiral CT in Diagnosis of Peripheral Pulmonary Carcinoma

目的:探讨多层螺旋CT多平面重建技术(MPR)对周围型肺癌的诊断价值。材料和方法:分析100例经病理及临床证实的周围型肺癌螺旋CT的表现,利用三维成像软件以多层面重建法进行重建,比较横断位薄层图像与MPR图像对病灶深分叶、短毛刺、胸膜凹陷征、血管集束征、空泡征、细支气管气相等征象的显示率。结果:100例多平面重建图像显示清晰,与横断位薄层图像比较,MPR图像能明显提高深分叶、胸膜凹陷征、血管集束征、细支气管气相的显示率,并能减少"空泡征"的假阳性,对短毛刺征的显示率无明显改变。结论:多平面重建方法简单易行,能充分显示周围型肺癌的形态特征,为周围型肺癌影像学的诊断提供更多的信息。

Purpose： To explore the value of multi-planar reconstruction （MPR） with multi-sclice spiral CT in diagnosing peripheral pulmonary carcinoma. Materials and Methods： The CT manifestations of peripheral pulmonary carcinoma in 100 cases proved pathologically and clinically were analyzed. MPR images were obtained with 3D reconstruction software . The findings on the MPR images were compared with high-resolution thin-slice axial images. Results： The MPR images of 100 cases diaplayed clearly. The incidence of lobulation , pleural indentation, air-bronchogrom , vessel convergence sign was significantly higher on MPR images than that of thin-slice axial images. False ＂vacuole sign＂ could be reduced on MPR images The short speculation sign dectected on MPR images was similar to that on thin-slice axial images. Conclusion： MPR with spiral CT is simply to process, it can well manifest the characteristics of peripheral pulmonary carcinoma, and offer more informations to diagnosis.