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螺旋CT与胸部X线联合诊断早期肺部感染的价值研究
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作者 冯万祥 陈先江 《科技与健康》 2025年第10期35-38,共4页
探究胸部X线与螺旋CT联合应用对早期肺部感染的诊断效能。在2023年5月—2024年12月开展研究,将疑似早期肺部感染的105例患者作为研究对象。所有研究对象均接受胸部X线、螺旋CT诊断。同时,进行痰液细菌培养,以培养结果为诊断“金标准”,... 探究胸部X线与螺旋CT联合应用对早期肺部感染的诊断效能。在2023年5月—2024年12月开展研究,将疑似早期肺部感染的105例患者作为研究对象。所有研究对象均接受胸部X线、螺旋CT诊断。同时,进行痰液细菌培养,以培养结果为诊断“金标准”,分析单一诊断和联合诊断的诊断效能。痰液细菌培养结果显示,76例(72.38%)确诊为早期肺部感染,29例(27.62%)为非肺部感染;胸部X线联合螺旋CT的诊断灵敏度(97.37%)、特异度(96.55%)、准确性(97.15%)均高于单一胸部X线诊断和单一螺旋CT诊断(P<0.05),胸部X线联合螺旋CT诊断的Kappa=0.929>0.80,具有良好一致性。研究发现,螺旋CT与胸部X线联合应用于早期肺部感染的诊断中可弥补单一诊断方法的不足,进一步提高诊断效能,诊断结果与“金标准”结果的一致性高,具有临床应用价值。 展开更多
关键词 早期肺部感染 螺旋CT 胸部X线 诊断效能 影像特征
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Three-dimensional topological insulators:A review on host materials 被引量:3
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作者 feng wanxiang YAO YuGui 《Science China(Physics,Mechanics & Astronomy)》 SCIE EI CAS 2012年第12期2199-2212,共14页
In recent years,three-dimensional topological insulators(3DTI) as a novel state of quantum matter have become a hot topic in the fields of condensed matter physics and materials sciences.To fulfill many spectacularly ... In recent years,three-dimensional topological insulators(3DTI) as a novel state of quantum matter have become a hot topic in the fields of condensed matter physics and materials sciences.To fulfill many spectacularly novel quantum phenomena predicted in 3DTI,real host materials are of crucial importance.In this review paper,we first introduce general methods of searching for new 3DTI based on the density-functional theory.Then,we review the recent progress on materials realization of 3DTI including simple elements,binary compounds,ternary compounds,and quaternary compounds.In these potential host materials,some of them have already been confirmed by experiments while the others are not yet.The 3DTI discussed here does not contain the materials with strong electron-electron correlation.Lastly,we give a brief summary and some outlooks in further studies. 展开更多
关键词 three dimension topological insulator host material
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