胃肠道间质瘤的CT表现与病理危险度的关系

发布时间：2018-01-28 07:30

  本文关键词： 多层螺旋CT 胃肠道间质瘤 病理 危险度　出处：《延边大学》2013年硕士论文　论文类型：学位论文

【摘要】：目的：探讨胃肠道间质瘤的CT表现及与病理分级的关系,为临床治疗提供依据。 方法：收集本院2009年9月至2012年12月经手术病理证实的GIST患者37例,全部病例行多层螺旋CT平扫及双期增强扫描。分析全部病例的CT图像,包括强化方式、密度、部位、大小、形态及有无浸润等,并与病理危险度分级结果进行比较分析。 结果：37例GIST中胃占51.35%,小肠占27.03%,直肠2例,腹膜后2例,腹腔和盆腔3例,多发性1例。黏膜下型占18.92%,浆膜下型占37.84%,肌壁间型占29.73%,胃肠道外型占13.51%。CT表现肿瘤大小为2.0-22cm,5.Ocm占72.97%(高度16例,中度10例,低度1例),≤5.Ocm占27.03%(低度8例；极低度2例)。肿瘤形态规则,圆形或卵圆形,边界清楚占43.24%(高度2例,中度4例,低度8例,极低度2例)；肿瘤形态不规则,以分叶为主,与邻近分界不清者占56.76%(高度14例,中度6例,低度1例)。肿块密度不均匀占67.57%(高度16例,中度7例,低度2例)；均匀占32.43%(中度3例,低度7例,极低度2例)；不均匀强化占62.16%(高度16例,中度6例,低度1例),均匀强化占37.84%(中度4例,低度8例,极低度2例)。 结论：GIST的CT表现具有一定的特点,肿瘤的大小、形态、密度及强化方式对于评估GIST的危险度分级有参考价值,CT可以在术前对GIST的危险度作出初步的评价。
[Abstract]:Objective: to investigate the CT features of gastrointestinal stromal tumors (GIST) and their relationship with pathological grading. Methods: from September 2009 to 2012, 37 patients with GIST confirmed by operation and pathology were collected. All cases were performed multi-slice spiral CT plain scan and dual-phase enhanced scan. The CT images of all cases were analyzed, including enhancement mode, density, location, size, morphology and infiltration. The results were compared with pathological risk classification. Results among the 37 cases of GIST, 51.35 were in stomach, 27.03 in small intestine, 2 in rectum, 2 in retroperitoneal, 3 in abdominal and pelvic cavity, 1 in multiple, and 18.92% in submucosal type. The subserous type was 37.84%, the muscular wall type was 29.73 and the gastrointestinal tract external type was 13.51 cm. Ct showed that the tumor size was 2.0-22 cm. (5) Ocm accounted for 72.97% (high 16 cases, moderate 10 cases, low degree 1 case), 鈮，

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