摘要
目的:确定CT鉴别良恶性胃壁增厚的敏感性和特异性.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4wk内作过钡餐检查的患者.复习其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14mm(7-65mm).胃壁厚度≥10mm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≥10mm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: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,这些患者须在近期内作进一步检查.
AIM： To determine the sensitivity and specificity of the computed tomography （CT） for differentiating benign and malignant thickness of the gastric wall.
METHODS： The data were collected from 40 patients with gastric wall thickness determined by spiral CT examination, who underwent barium meal examination within 4 wk before or after the CT examination. The CT images were reviewed to determine the degree of the gastric wall thickeness and the symmetry, distribution, and enhancement of the thickened wall. The sensitivity and specificity of CT in detecting the malignant tumor were calculated through the above features.
RESULTS： Of the 40 cases, 20 were with gastritis, 4 with hiatal hernia, 3 with benign ulcer, 3 with benign gastric neoplasm, 8 with malignant neoplasm, and 2 with no abnormality. The mean thickness of the gastric wall was 14 mm （7-65 mm）. All the gastric walls with thickness ≥10 mm were diagnosed as malignancy by CT, and the sensitivity rate was 100%, but the specificity rate was 43%. The sensitivity rate for focal, eccentric, and enhanced gastric wall thickness was 93%, 71%, and 43%, and the specificity rate was 8%, 75%, and 88%, respectively. Generally, the sensitivity for detecting 10 mmor more than 10 mm-thick gastric walls, which were focal, eccentric, and enhanced, was 36%, but the specificity was 93%.
CONCLUSION： After a comprehensive consideration of focal, eccentric, and enhancing thickness, the specificity rate of CT can be greatly increased, so further examination should be performed in the near future.
出处
《世界华人消化杂志》
CAS
北大核心
2005年第24期2886-2888,共3页
World Chinese Journal of Digestology
关键词
消化道
钡餐
胃
CT
肿瘤
Gastrointestinal tract
Barium meal examination
Stomach
Computed Tomography
Neoplasm
