CT靶扫描联合多平面重组对肺部<1 cm磨玻璃结节诊断的应用价值  

Application value of CT targeted scan combined with multiple plane reconstruction in diagnosis of ground-glass nodules (<1 cm) in lung

作　　者：迟红卫[1] 门明[1] 徐倩 冯文秋 任进军[1] 陈艳芳[1] 郭志军[1] Chi Hongwei;Men Ming;Xu Qian;Feng Wenqiu;Ren Jinjun;Chen Yanfang;Guo Zhijun(Department of Radiology,Huabei Petroleum Administration General Hospital affiliated to Hebei Medical University,Renqiu 062552,China)

机构地区：[1]河北医科大学附属华北石油总医院医学影像科

出　　处：《临床荟萃》2019年第9期823-826,共4页Clinical Focus

摘　　要：目的探讨采用靶扫描联合多平面重组(MPR)对于肺内<1 cm磨玻璃结节诊断的应用价值。方法选取我院同时行CT常规平扫及肺结节靶扫描62例患者的磨玻璃结节71个,采用MPR、容积再现(VR)结节处理图像,用双盲法对结节的形态特征进行分析。结果靶扫描在显示磨玻璃结节的密度、边缘及分叶征方面优于常规扫描,靶扫描联合MPR显示空气支气管征和血管集束征的清楚程度与常规扫描比较差异具有统计学意义。与常规扫描比较,靶扫描使医师诊断信心提高(P=0.000),诊断正确率提高(P=0.039),结节的手术例数增加,随访例数减少。结论靶扫描联合MPR可以清楚显示1 cm以下磨玻璃结节的内部结构以及边缘改变等关键细节特征,对常规CT难以明确诊断的1cm以下磨玻璃结节,建议采用靶扫描联合多平面重组进一步检查。Objective To explore the application value of targeted scan combined with multiple plane reconstruction(MPR)in diagnosis of ground-glass nodules(<1 cm)in the lung.Methods A total of 71 ground-glass nodules of lung from 62 patients with conventional CT scanning and targeted scan simultaneously in our hospital were selected.The analysis of nodules with MPR and volume rendering(VR)was performed.The morphological features of the nodules was evaluated by double-blind method.Results The images obtained by targeted scans were superior significantly to that of conventional scans in showing the density,margin and lobulation sign of the ground glass nodules.There was statistical significance in the difference between the clearness of the images of air bronchial signs and vascular bundle signs obtained by targeted scan combined with MPR and that obtained byconventional scans.Compared with the conventional scans,the targeted scan can enhance diagnostic confidence(P=0.000)and diagnostic accuracy(P=0.039)of physicians,increase thenumber of nodule surgeries and decrease the number of follow-up cases.Conclusion The images of targeted scanning combined with MPR can clearly show the internal structure,the change of margin and the other key details of the ground-glass nodules(<1 cm).For the ground-glass nodules(<1 cm)which are difficult to be diagnosed by conventional CT,it is suggested to use target scan combined with MPR for further examination.

关 键 词：硬币病变 肺 扫描 体层摄影术 X线计算机 

分 类 号：R563[医药卫生—呼吸系统]