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胃肠道间质瘤的CT诊断价值
引用本文: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.
作者姓名:廖玉珍  张志强  王秋良  李京雨
作者单位:北京军区总医院放射科,北京,100700
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.

关 键 词:胃肠  间质瘤  体层摄影术  X线计算机
文章编号:1003-3289(2005)01-0090-03
收稿时间:2004/9/10 0:00:00
修稿时间:2004年9月10日

CT diagnostic value in gastrointestinal stromal tumors
LIAO Yu-zhen,ZHANG Zhi-qiang,WANG Qiu-liang and LI Jing-yu.CT diagnostic value in gastrointestinal stromal tumors[J].Chinese Journal of Medical Imaging Technology,2005,21(1):90-92.
Authors:LIAO Yu-zhen  ZHANG Zhi-qiang  WANG Qiu-liang and LI Jing-yu
Institution:Department of Radiology, Beijing Army General Hospital, Beijing 100700, China;Department of Radiology, Beijing Army General Hospital, Beijing 100700, China;Department of Radiology, Beijing Army General Hospital, Beijing 100700, China;Department of Radiology, Beijing Army General Hospital, Beijing 100700, China
Abstract: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.
Keywords:Gastrointestine  Stroma  Tomography  X-ray computd
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