摘要
目的 探讨CT和超声预测胆石的化学性质以及比较两者间差异的准确性。方法 6 0例胆石标本于体外模型行CT和超声检查 ,根据影像学特点 ,将胆石分为 5类。用红外光谱仪定量分析所有胆石的 4种主要化学成分。结果 胆石的CT和超声分类同其化学性质密切相关。CT和超声诊断胆固醇性结石的敏感性、特异性、准确性分别为 90 .0 %、97.5 %、95 .0 %及 83 .3 %、95 .2 %、91.7%。两组各有效性间的相互比较差异无显著性意义 (P >0 .0 5 )。结论 CT和超声均能准确预测胆石的化学性质。
Objective To study whether CT and ultrasonography could predict accuratly the features of gallstones and to compare the accuracy of prediction between CT and ultrasonography.Methods Sixty samples of gallstones were scaned by CT and ultrasonography in vitro and analysed quantitatively by infrared spectrum.All the stones were divided into 5 patterns according to special imaging features.Results The chemical character of the gallstones were well correlated with their CT and ultrasonographic patterns.The sensitivity, specificity, accuracy of diagnosing cholesterol stones by CT and ultra sonography were 90.0 %, 97.5% , 95.0% and 83.3% , 95.2% , 91.7% respectively.There was no significant difference between the two methods.Conclusions Both CT and ultrasonography can predict the chemical character of gallstones exactly and there is no difference in accuracy of prediction between two methods.
出处
《中华超声影像学杂志》
CSCD
2000年第11期701-703,共3页
Chinese Journal of Ultrasonography
