多层螺旋CT重建技术在周围型肺癌诊断中的价值(1)
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[摘要] 目的 探讨多层螺旋CT三种后处理技术在周围型小肺癌诊断中的运用价值。方法 收集经病理证实的67例周围型小肺癌患者的MSCT扫描及MPR、SSD、VR重建图像并进行分析。结果 MPR重建在显示周围型小肺癌五项主要征象上敏感性均高于横断面薄层扫描(P<0.05)；SVR重建在显示周围型小肺癌四项主要征象上敏感性均高于横断面薄层扫描(P<0.05)，SVR重建无法显示空泡征；SSD重建在显示周围型小肺癌四项主要征象上敏感性均高于横断面薄层扫描(P<0.05)。结论 周围型小肺癌不同的图像后处理技术在显示肺肿瘤重要征象上各有一定的优势，如普通薄层CT无法清晰显示所需要的影像，可选择一定的重建技术协助诊断。
[关键词] 周围型小肺癌；后处理技术；体层摄影术；X线计算机
[中图分类号] R734.2 [文献标识码] B [文章编号] 1673-9701(2011)23-68-02
Value of Multi-slice Spiral CT Reconstruction in Diagnosis of Peripheral Lung Cancer
WANG Shanjun
Department of Radiology, Maternal and Child Health Hospital of Zhoushan City in Zhejiang Province, Zhoushan 316000, China
[Abstract] Objective To evaluate the value of three different post-processing techniques of multi-slice spiral CT (MSCT) in diagnosis of small peripheral lung cancer. Methods Collected 67 patients who had small peripheral lung cancer and proved by pathology of MSCT scanning and MPR, SSD, VR reconstruction image and given an analysis. Results MPR reconstruction showed small peripheral lung cancer in the five major signs of the cross section were higher than the sensitivity of TLC (P<0.05); SVR reconstruction showed small peripheral lung cancer in four main signs of sensitivity were higher than on the thin cross-section tomography (P<0.05); SVR reconstruction can not be displayed vacuole sign; SSD reconstruction showed small peripheral lung cancer in four main signs of depression were higher than cross-section on the sensitivity of TLC (P<0.05). Conclusion Different image processing technique of SPLC in showing important signs of the lung tumors have certain advantages, if the common CT can not clearly display the required image, reconstruction techniques can give a certain diagnosis.
[Key words] Small peripheral lung cancer; Post-processing techniques; Tomography; X-ray computer
周围型小肺癌(small peripheral lung cancer，SPLC)是支气管肺癌中较常见的一种类型，是指位于段支气管以下、肺周边部位且其直径<3cm的恶性肿瘤，SPLC的早期诊断与治疗对改善支气管肺癌的预后有着极其重要的意义[1]。传统的胸部平片及普通CT对SPLC的检出率较低，随着多层螺旋CT及三维重建技术的发展，目前对SPLC的检出率已有所提高。现总结我院2006～2010年经手术及病理证实的67例SPLC患者的临床资料，并进行回顾性分析。
1 资料与方法 ......
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