摘要
目的 认识周围型小肺癌 (SPLC)在多层螺旋CT多平面重建 (MPR)中的基本征象 ,探讨MPR配合多层螺旋CT对SPLC基本征象的检出作用。资料与方法 搜集病理证实的SPLC 31例 ,良性小结节 2 2例。多层螺旋CT扫描后MPR处理 ,并与横断薄层扫描对比分析。结果 (1)SPLC的分叶征 ,棘突 ,毛刺征和支气管血管集束征在MPR中检出率高于横断薄层扫描。 (2 )MPR对于空泡征、支气管气相和支气管血管集束征的判别有其优势。 (3)MPR能较真实地测定病灶大小。结论 MPR能克服横断扫描角度限制 ,配合最新的多层螺旋技术达到各向同性成像获得高分辨率图像 。
Objective To make a further understanding of the basic characteristic signs of small peripheral lung cancer (SPLC) on multiplanar reconstruction (MPR) with multi-slice spiral CT (MSCT), to evaluate MPR in the detection of the signs. Materials and Methods Thirty-one cases with pathologically proved SPLC and 22 cases with benign nodules were collected. After MSCT scanning, MPR images were obtained. MPR images were compared with axial thin-slice images. Results (1) MPR provided higher detecting rate of SPLC signs, including lobulation, spine, spiculation and bronchovascular convergence, than axial thin-slice images did. (2) MPR was superior to axial thin-slice scans in judging the presence of the vacuolar sign, air-bronchogram and bronchovascular convergence and in correctly measuring lesion's size.Conclusion MPR with MSCT is useful in demonstrating the pathognomonic signs of SPLC, providing more information for the diagnosis of SPLC.
出处
《临床放射学杂志》
CSCD
北大核心
2004年第2期109-112,共4页
Journal of Clinical Radiology
基金
北京市自然科学基金赞助项目 :7992 0 16
关键词
多层螺旋CT
多平面重建
小肺癌
基本征象
诊断
Multiplanar reconstruction Small peripheral lung cancer Multi-slice spiral CT
