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良恶性胃肿瘤的CT表现 被引量:1

CT Differentiation for Benign Stomach Tumours from Malignantones
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摘要 目的确定CT鉴别良恶性胃肿瘤的敏感性和特异性.方法在螺旋CT和数字胃肠光盘中收集到40例螺旋CT见胃壁增厚,且在作CT检查前或后四周内作过钡餐检查的病人.作者复习CT表现,并以胃壁增厚的程度、对称度、分布和强化等特点确定CT发现恶性胃壁增厚的敏感性和特异性.结果最后诊断胃炎20例、食道裂孔疝4例、良性溃疡3例、良性肿瘤3例、恶性胃肿瘤8例、正常2例.40例胃壁平均厚度14?(7~65?).胃壁厚度≥10?诊断恶性肿瘤的敏感度100%,特异性为43%,而局限性、偏心性、强化型胃壁增厚的敏感度分别为93%、71%、43%,特异性为8%、75%、88%.综合≥10?的胃壁增厚,且呈局限性、偏心性、强化者,其敏感性为36%,特异性上升到92%.结论CT见胃壁增厚≥10?,诊断胃恶性肿瘤的敏感性为100%,特异性则不到50%.若综合胃壁增厚呈局限性、偏心性且有强化等特点,则诊断恶性胃壁增厚的特异性可上升到92%.因此。
出处 《中国辐射卫生》 北大核心 2007年第2期238-239,共2页 Chinese Journal of Radiological Health
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