原发性小肠间质瘤MSCT强化表现与病理危险度对照分析  

The correlation between MSCT enhanced findings and pathologic risk in the patients with primary small intestinal stromal tumor

作　　者：夏国金[1] 胡珍珍[2] 何玉麟[1] 涂露霞[1] 龚洪翰[1] 

机构地区：[1]南昌大学第一附属医院影像科,江西南昌330006 [2]江西省肿瘤医院内二科,江西南昌330029

出　　处：《实用放射学杂志》2017年第6期571-573,580,共4页Journal of Practical Radiology

摘　　要：目的 分析不同病理危险度的原发性小肠间质瘤（SIST）的MSCT强化表现，与病理表现进行对照分析，提高原发性SIST的术前诊断率。 方法 回顾性分析30例经手术病理证实的原发性SIST临床及影像资料，依据病理组织学将其分为低危、高危2组，统计分析不同病理分级各期CT值及净增值差异。 结果 30例原发性SIST，其中十二指肠5例（16.7%），空肠16例（53.3%），回肠9例（30%），14例为低危组，平均长度（3.8±0.9） cm，16例为高危组，平均长度（7.0±1.4） cm；低危组平扫CT值、静脉期CT值、动脉期净增值、静脉期净增值、延时期净增值与高危组对比差异无统计学意义；低危组动脉期CT值、延时期CT值与高危组对比差异有统计学意义（P〈0.05）。 结论 MSCT能有效评估原发性SIST危险度分级，低危组与高危组间质瘤在临床特征与CT强化表现上存在差异，可为临床术前提供分级参考。Objective To analyze the multi-slice computed tomography （MSCT） enhanced findings in the patients with primary small intestinal stromal tumor（SIST） ,and to probe the relationship between the imaging findings and the pathologic risk in order to improve the diagnostic accuracy. Methods Thirty patients with primary SIST confirmed by surgical pathology were enrolled in this study. Characterization and compassion of the clinical manifestations and MSCT enhanced findings were carried out between the pathologic low-and high-risk groups. Furthermore, the relationship was analyzed between the enhanced findings and the pathologic risk.Results Among all 30 patients with primary SIST, the lesion was located at duodenum in 5 patients （16.7%）, at jejunum in 16 （53.3%）, and at ileum in 9 （30%）. 14 patients were classified in the low risk group with the lesion with the average length of （3.8 ± 0.9） cm, and other 16 in the high-risk group with lesion with the average length of （7.0±1.4） cm. There were no statistical differences between the low-and high-risk groups in CT value in plain and venous phase, and in added value in arterial, venous and delayed phases. However, the significantly differences were observed in CT value in arterial and delayed phases between two groups （P〈0.05）. Conclusion MSCT may effectively evaluate the pathologic risk of primary SIST.There are significant differences of the enhanced findings between the low and high risk groups, which can provide important apreoperative classification for the therapy.

关 键 词：原发性小肠间质瘤 计算机体层成像 

分 类 号：R735.32[医药卫生—肿瘤] R814.42[医药卫生—临床医学]