多排螺旋CT在胃肠道间质瘤的临床应用  

Clinical Application of MDCT in Gastrointestinal Stromal Tumor

作　　者：黄丽军[1] 陆志华[1] 蔡为民[2] 生晶[3] 

机构地区：[1]苏州大学附属常熟医院放射科,常熟市书院街1号江苏省常熟215500 [2]苏州大学附属常熟医院病理科,常熟市书院街1号江苏省常熟215500 [3]第二军医大学附属长海医院放射科

出　　处：《中国医学计算机成像杂志》2011年第2期140-144,共5页Chinese Computed Medical Imaging

摘　　要：目的:探讨胃肠道间质瘤(GIST)的多排螺旋CT(MDCT)表现与其生物学危险性的相关性。方法:回顾性分析43例经病理证实的GIST患者的MDCT表现(包括GIST的大小、坏死与否、生长方式、形态及强化程度),并与其生物学危险性分级进行对照。结果:本组43病例中,病理证实胃GIST21例,小肠GIST11例,肠系膜GIST6例,十二指肠GIST2例,网膜GIST1例,结肠GIST2例。高度危险性17例,中度危险性10例,低度危险性11例,极低危险性5例。CT发现43例,40个定位正确,分别是胃21例、小肠10例、肠系膜5例、十二指肠2例、结肠2例,3例定位错误,分别为1例肠系膜误判为来源于小肠、1例网膜误判为来源于肠系膜、1例小肠误判为来源于肠系膜。CT影像表现与病理对照分析,GIST的大小、坏死与否、生长方式及形态与GIST的生物学危险性具有统计学意义,GIST的强化程度与GIST的生物学危险性不具有统计学意义。结论:胃肠道间质瘤多排螺旋CT影像表现具有一定的特征性,术前评估GIST的生物学危险性具有一定的价值。Purpose： To investigate the correlation between biological risk and MDCT manifestation of GIST.Methods：MDCT manifestations of 43 GIST cases which were confirmed by pathology were analyzed retrospectively.The MPCT features of GIST including size,necrosis,growth pattern,form and the level of reinforcement, were compared with the classification of the biological risk.Results：There were 21 GIST cases in stomach,11 cases in intestine,6 cases in mesentery,2 cases in duodenum,one case in omentum and 2 cases in colon.Of all the 43 cases,17 cases were in high risk,10 cases were in poor risk,11 cases were in low risk and 5 cases were in weak risk.Forty GIST cases were localized correctly,include 21 cases in stomach,10 cases in intestine,5 cases in mesentery,2 cases in duodenum and 2 cases in colon.Three cases were localized incorrectly,include one case not in intestine but mesentery,one case not in mesentery but omentum,one case not in mesentery but intestine.Through comparing the CT features with pathology of GIST,statistical significance was found in the relationships of biological risk with size,necrosis,growth pattern and form,but not with the level of reinforcement.Conclusion： The MDCT manifestations of GIST have some characteristics.Preoperative evaluation of GIST＇s biological risk have some kind of value.

关 键 词：胃肠道间质瘤 X线计算机 体层摄影术 病理 危险性 

分 类 号：R735[医药卫生—肿瘤]