| 廖玉珍,张志强,王秋良,李京雨.胃肠道间质瘤的CT诊断价值[J].中国医学影像技术,2005,21(1):90~92 |
| 胃肠道间质瘤的CT诊断价值 |
| CT diagnostic value in gastrointestinal stromal tumors |
| 投稿时间：2004-09-10 修订日期：2004-10-15 |
| DOI： |
| 中文关键词: 胃肠 间质瘤 体层摄影术,X线计算机 |
| 英文关键词:Gastrointestine Stroma Tomography, X-ray computed |
| 基金项目: |
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| 中文摘要: |
| 目的分析胃肠道间质瘤CT征象,评价CT的诊断价值。方法 回顾性分析18例病理证实为胃肠道间质瘤(GISTs)患者的CT平扫和双期动态强化螺旋CT扫描。结果 18例GISTs发生在胃9例,小肠9例;良性6例(均发生在胃),潜在恶性3例(胃2例,小肠1例),恶性9例(胃1例,小肠8例);多为边界清楚(16/18,88.9%)、圆形或类圆形(11/18,61.1%)、密度均匀(10/18,55.6%)的肿块。良性GISTs多强化均匀(5/6,83.3%),恶性者密度不均匀(7/12,58.3%),强化不均匀(11/12,91.7%)。本组对GISTs的定位准确率和定性准确率分别为89.5%(16/18)和83.3%(15/18)。结论 CT 能准确显示GISTs的部位、形态和大小,鉴别肿瘤良恶性,具有重要临床价值。 |
| 英文摘要: |
| Objective To investigate the diagnostic value of CT in gastrointestinal stromal tumors (GISTs).Methods Both plain and two-phase dynamic enhanced spiral CT features in 18 cases with pathologically-proved GISTs were retrospectively analyzed.Results Eighteen GISTs originated from stomach (n=9) or small bowel (n=9), in which 6 benign tumors located in stomach, 12 cases of malignant or potential malignant tumors in stomach (n=3) or in small bowel (n=9). CT findings of GISTs included well-defined tumor margin (16/18, 88.9%), round or oval in shape(11/18, 61.1%) and homogeneous density (10/18, 55.6%). The benign tumors displayed homogeneous enhancement (5/6,83.3%), whereas the malignant were heterogeneous density both on plain (7/12, 58.3%) and enhanced (11/12, 91.7%) CT scans. Accuracy of CT diagnosis for location and pathologic features of GISTs were 89.5% (16/18) and 83.3% (15/18), respectively.Conclusion CT is a valuable examination for GISTs. CT can precisely display the location, shape and size of GISTs, and thus is very helpful to differentiate the benign from the malignant tumors. |
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