MSCT动态增强在胃神经鞘瘤诊断中的价值  

Imaging Fidings and A Comparative Study of the Gastric Schwannoma And Gastric-Intetinal Strmoal Tumor on Multi-Slice CT

作　　者：李兰涛 王爱英 朱继兰[1] 谭政帅[1] LI Lan-tao;WANG Ai-ying;ZHU Ji-lan;TAN Zheng-shuai(Department of Radiology,Affiliated Qingdao Central Hospital of Qingdao University,Qingdao 266042,Shandong Province,China)

机构地区：[1]山东省青岛大学附属青岛市中心医院放射科,山东青岛266042

出　　处：《中国CT和MRI杂志》2023年第4期120-121,124,共3页Chinese Journal of CT and MRI

基　　金：青岛市2020年度医药科研指导计划(2020-WJZD071)。

摘　　要：目的 分析胃神经鞘瘤(GS)的MSCT动态增强特征,探讨其诊断及鉴别诊断价值。方法 回顾性分析经手术病理证实的GS患者21例,对其MSCT平扫及动态增强图像进行定性和定量分析。结果 GS是多数位于胃体(69.91%)和胃窦(33.33%)、形态规则(90.48%)、边界清楚(85.71%)的软组织肿块,生长方式有腔外型(57.14%)、腔内型(23.81%)和混合型(19.05%),可见溃疡(19.05%)和瘤周肿大淋巴结(66.67%),平均直径为4.1±0.9cm。平扫密度均匀(85.71%),增强扫描呈渐进性强化(90.48%),动脉期多轻度强化(占66.67%),门脉期中度强化(76.19%),实质期明显强化(71.43%)。结论 GS的MSCT动态增强有一定特征性,胃粘膜下形态规则、边界清晰、平扫密度较低,增强呈均匀渐进性强化时,可考虑GS的可能。Objective To analyze the dynamic enhanced features of gastric schwannoma(GS)on MSCT,in order to explore the value of diagnosis and differential diagnosis.Methods 21 patients with GS confirmed by operation and pathology were analyzed retrospectively.The MSCT plain and dynamic enhanced images were analyzed qualitatively and quantitatively.Results GS was mostly located in the gastric body(69.91%)and antrum(33.33%),with regular shape(90.48%)and clear boundary(85.71%).The growth patterns were extraluminal(57.14%),endoluminal(23.81%)and mixed(19.05%).Ulcers(19.05%)and peritumoral lymph nodes(66.67%)were observed,with an average diameter of 4.1±0.9cm.The density of plain scan was uniform(85.71%),the enhancement scan showed gradual enhancement(90.48%),mild enhancement in arterial phase(66.67%),moderate enhancement in portal phase(76.19%),and obvious enhancement in parenchymal phase(71.43%).Conclusion The dynamic enhancement of GS on MSCT has some characteristics,such as regular submucosal shape,clear boundary,low density on plain scan,homogeneous and gradual enhancement,so GS can be considered.

关 键 词：胃神经鞘瘤 体层摄影术 X线计算机 

分 类 号：R322.44[医药卫生—人体解剖和组织胚胎学]