低张空气铸型多排CT动态增强对早期胃癌的诊断

Diagnosis of Early Gastric Carcinoma using Dynamic Enhanced Multi-detector Computed Tomography with Hypotonic Air Molding

目的:探讨低张空气铸型多排CT动态增强在早期胃癌诊断中的价值。方法:对临床怀疑为早期胃癌的60例患者,在低张空气铸型下行多排CT动态增强扫描,对图像进行重组后处理,将CT诊断与病理结果进行对照。结果:60例最终病理确诊早期胃癌30例,低张空气铸型多排CT动态增强对胃黏膜病变的显示较清晰。早期胃癌的CT诊断准确率为70.0%,敏感度为66.7%,特异度为73.3%,阳性预测值为71.4%,阴性预测值为68.8%,早期胃癌的检出率为66.7%。结论:低张空气铸型多排CT动态增强检查可以较清晰显示胃黏膜的细微病变,对多数早期胃癌的诊断具有较大价值。

Objective To explore the diagnostic value of dynamic enhanced multi-detector computed tomog-raphy for early gastric carcinoma with hypotonic air molding. Methods Sixty cases suspected of early gastric carcinoma underwent dynamic enhanced multi-detector computed tomography after hypotonic air molding of stomach. Original images were reconstructed and the diagnosis was compared to pathology. Results Thirty cases of early gastric carcinoma were determined by pathology. The tiny lesion of gastric mucosa was showed clearly under dynamic enhanced multi-detector computed tomography after hypotonic air molding. Diagnostic ac- curacy of CT was 70.0%, sensitivity was 66.7%, specificity was 73.3%, positive predictive value was 71.4%, neg- ative predictive value was 68.8% and relevance ratio of early gastric carcinoma was 66.7%. Conclusion Dy- namic enhanced multi-detector computed tomography after hypotonic air molding can show the tiny lesion of gas- tric mucosa clearly and thus it shows important value for the diagnosis of early gastric carcinoma.