螺旋CT不同动态增强扫描方式对小肝癌诊断价值的比较
癌,肝细胞,,癌,肝细胞;体层摄影术,螺旋计算机;增强扫描;Meta分析,1材料和方法,2结果,3讨论,【参考文献】
Comparison of helical CT scanning with different dynamic enhancements in diagnosis of small hepatic carcinomaGUO XiaoJuan,GUO YouMin,CHEN Min,ZHANG ShaoJuan,YANG Jian,JIN ChenWang
Imaging Center,First Hospital,Xian Jiaotong University,Xian 710061,China
【Abstract】 AIM: To compare the performance of two dynamic enhancements for helical CT scanning in the diagnosis of small hepatic carcinoma by Meta analysis (the late arterial phase A2+portal venous phase P+delayed phase D,the early arterial phase A1+late arterial phase A2+portal venous phase P) and to assess their clinical value.METHODS: Pubmed,Ovid,Embase databases (1990/2004) and CNKI database (1994/2004) were searched for the related articles in English and Chinese respectively.By the assessment standard of Evidencebased Medicine,English and Chinese literature on the dynamic enhancement for helical CT scanning was screened.Pooled weighted sensitivity,pooled weighted specificity,pooled weighted lnDOR and the area under SROC were used to assess the performance of two types of threephased dynamic enhanced scanning of helical CT in the diagnosis of small hepatic carcinoma.RESULTS: Altogether 11 articles in English that met the standard were included,6 of which used A2+P+D dynamic scanning and 5 of which used A1+A2+ P dynamic scanning.The pooled weighted sensitivity of the two types was 84% and 88% respectively,the pooled weighted specificity of them was 94% and 85% respectively and the pooled weighted lnDOR was 450 and 391 respectively.The area under SROC curve was 8912% and 9028% respectively (P>005).CONCLUSION: Considering the overall sensitivity and specificity, the two types of helical CT dynamic enhancements both have high accuracy in the diagnosis of small hepatic carcinoma,but the approach of A1+A2+P was higher in its sensitivity and A2+P+D was higher in the specificity.The latter has a higher clinical value for its easy operation and relatively low requirement of equipment. ......
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