【摘要】 目的探讨肺部超声检查联合血浆降钙素原(PCT)、CRP检测对社区获得性肺炎(CAP)的诊断价值。方法对临床疑诊CAP患者240例同时进行肺部超声和胸部CT检查,并检测血清PCT、CRP及计数WBC。以胸部CT结果作为诊断CAP"金标准",分析肺部超声及血浆PCT、CRP对CAP的诊断价值。结果肺部超声诊断CAP的特异性为72.73%、敏感性为95.65%。CRP升高诊断CAP的敏感性为97.66%,特异性为30.77%;PCT升高诊断CAP的特异性为96.15%,敏感性为42.52%;WBC数量增加诊断CAP的特异性、敏感性分别为88.46%、84.58%。肺部超声检查联合血浆PCT、CRP检测诊断CAP的,特异性为92.59%,敏感性为99.06%。结论肺部超声检查联合血浆PCT、CRP检测对CAP的诊断敏感性及特异性均优于单项检测。更多还原

【Abstract】 Objective To investigate the diagnostic value of pulmonary ultrasonography( LUS) combined with plasma calcitonin( PCT) and C-reactive protein( CRP) in the diagnosis of community acquired pneumonia( CAP).Methods LUS and chest CT were performed in 240 cases of clinically suspected CAP patients at the same time,and we detect the levels of plasma PCT,CRP and WBC count. Taking chest CT results as a diagnostic CAP " gold standard",we analyzed the diagnostic value of LUS examination,serum PCT and CRP detection in the diagnosis of CAP. Results The specificity and sensitivity of CAP were 72. 73% and 95. 65%,which were diagnosed by LUS. The sensitivity of increased CRP in the diagnosis of CAP was 97. 66%,and the specificity was 30. 77%. The specificity of increased PCT in the diagnosis of CAP was 96. 15%,and the sensitivity was 42. 52%. The sensitivity and specificity of increased WBC in the diagnosis of CAP were 88. 46% and 84. 58%,respectively. The diagnostic sensitivity of LUS combined with PCT,CRP and CAP was 99. 06%,and the specificity was 92. 59%. Conclusion The sensitivity and specificity of LUS combined with serum CAP and PCT detection in diagnosis of CRP are superior to those of single test.更多还原