摘要
目的:探讨常规MR T_(2)WI上池征对颅内单发转移性腺癌与胶质母细胞瘤的鉴别诊断价值。方法:回顾性分析26例颅内单发转移瘤和50例胶质母细胞瘤患者的临床和MRI资料。所有患者行常规MR检查,检查序列包括横轴面T_(1)WI、T_(2)WI、FLAIR及对比增强横轴面、冠状面和矢状面T_(1)WI。由2位具有10年以上工作经验的影像科医师在不知晓患者信息及病理结果的情况下分析所有患者的MR图像,观察T_(2)WI上颅内病变是否存在池征。结果:26例单发脑转移瘤中可见池征者18例(转移性腺癌15例,鳞癌3例),50例胶质母细胞瘤中可见池征者9例,两组之间此征象出现率的差异有统计学意义(χ^(2)=19.60,P<0.001),池征诊断颅内单发转移瘤的ROC曲线下面积为0.765。结论:池征是颅内单发转移性腺癌比较有特异性的征象,有助于与胶质母细胞瘤相鉴别。
Objective:The aim of this study was to investigate the differential value of pool sign in conventional MR T_(2)WI sequence for single intracranial metastatic adenocarcinoma and glioblastoma.Methods:26 cases with single intracranial metastatic tumor and 50 cases with glioblastoma were recruited in this study.All the patients underwent routine MR examination,including transverse plane of T_(1)WI,T_(2)WI,fluid-attenuated inversion recovery(FLAIR)sequence and contrast-enhanced transverse plane,coronal plane,sagittal plane of T_(1)WI.MR images of all the patients were retrospectively analyzed by two senior radiologists with more than 10 years’diagnostic experience and without know-ledge of patient information or pathology result.Pool sign on T_(2)WI sequence were evaluated and recorded.Results:Pool sign was found in 18 of 26 cases with metastatic tumor and 9 of 50 cases of glioblastoma,which was statistically significant(χ^(2)=19.60,P<0.001).The area under ROC curve for diagnosing single metastatic tumor with pool sign was 0.765.Conclusion:Pool sign is a specific sign of single intracranial metastatic adenocarcinoma,which can effectively distinguish from glioblastoma.
作者
钟桂棉
张宇泽
陈忠
杨万群
黄飚
ZHONG Gui-mian;ZHANG Yu-ze;CHEN-Zhong(Department of Radiology,the Guangzhou Panyu Center Hospital,Guangzhou 511400,China)
出处
《放射学实践》
CSCD
北大核心
2022年第12期1505-1508,共4页
Radiologic Practice
基金
国家自然科学基金面上项目(82071871)
番禺区科技计划项目(2019-Z04-18)。
关键词
磁共振成像
脑转移瘤
胶质母细胞瘤
池征
Magnetic resonance imaging
Metastatic brain tumor
Glioblastoma
Pool sign
