MSCT重建技术对小肠间质瘤的诊断价值  

Diagnostic Value of Multislice CT and Reconstruction Techniques in Small Intestinal Stromal Tumors

作　　者：华广美[1] 尹化斌[1] 万凯明[1] 钱亭[1] 

机构地区：[1]复旦大学附属上海市第五人民医院放射科,上海市瑞丽路128号上海200240

出　　处：《中国医学计算机成像杂志》2013年第2期152-155,共4页Chinese Computed Medical Imaging

摘　　要：目的:探讨多层螺旋CT及重建技术在小肠间质瘤(SIST)诊断中的价值。方法:对18例经手术病理证实的小肠间质瘤的CT表现及MPR、MIP重建进行分析,并与手术病理对照研究。结果:18例患者共检出20个病灶,空、回肠各9个,十二指肠2个,平均直径6.7cm(2.2～17cm)。病理分型:高危60%(12/20),中危15%(3/20),低危25%(5/20),极低危为0。典型CT表现为分叶状或不规则形肿块,多为外生型,血供较丰富,常出现囊变坏死,可见气液平及阳性对比剂。55%(11/20)MPR、MIP可见供血动脉及引流静脉。27.8%(5/18)伴发其他肿瘤。肝脏、淋巴结转移1例。结论:小肠间质瘤具有一定的特征性,多层螺旋CT及MPR、MIP重建对其定位、定性诊断具有重要价值。purpose： To investigate the value of Multislice CT and reconstruction techniques in diagnosing small intestinal stromal tumors （SIST）. Methods： CT manifestations and MPR, MIP reconstruction images of 18 cases with SIST were analyzed, and were compared with the results of surgery and pathology exam. Results： The group included 18 patients with 20 lesions.The tumors originated from the jejunum and ileum in 9 cases,duodenum in 1 case.The mean diameter of tumors was 6.7cm（2.2-17cm）. Pathological classification was as following： Among them, 60%（12/20） were high-risk, 15% （3/20） were intermediated-risk, 25%（5/20） were low-risk, no case was very low-risk. CT features of SIST were lobular or irregular,exophytic, hypervascular, heterogeneous masses with cystic necrosis and air. The feeding artery and draining vein of 11 lesions （55%） could be showed on MPR, MIP. Of all the cases 27.8 % （5/18） accompanied with other tumors. One case had liver and lymph node metastasis. Conclusion： Appearances of SIST are specific. Multislice CT with MPR, MIP reconstruction have an important value in localization and qualitative diagnosis of SIST.

关 键 词：小肠 间质瘤 体层摄影术 X线计算机 

分 类 号：R735.32[医药卫生—肿瘤]