5.0T MR磁敏感加权成像显示脑小静脉及检测脑微出血  

5.0T MR susceptibility weighted imaging for displaying cerebral small veins and detecting cerebral microbleeds

作　　者：缪熙音 史张 韩世鸿 王睿 陈财忠 饶圣祥 林江 曾蒙苏 MIAO Xiyin;SHI Zhang;HAN Shihong;WANG Rui;CHEN Caizhong;RAO Shengxiang;LIN Jiang;ZENG Mengsu(Department of Radiology,Zhongshan Hospital,Fudan University,Shanghai 200032,China;United Imaging Healthcare,Shanghai 201807,China)

机构地区：[1]复旦大学附属中山医院放射科,上海200032 [2]上海联影医疗科技股份有限公司,上海201807

出　　处：《中国医学影像技术》2024年第5期657-660,共4页Chinese Journal of Medical Imaging Technology

基　　金：上海市白玉兰人才计划浦江项目(2023PJD012)。

摘　　要：目的观察5.0T MR磁敏感加权成像(SWI)显示脑小静脉及检测脑微出血(CMB)的价值。方法前瞻性对30例疑因脑小血管病致脑卒中患者行3.0T及5.0T头颅MR检查,对比不同场强下SWI图像质量、显示脑小静脉及检出CMB效果。结果5.0T SWI图像质量评分、信噪比、对比度噪声比、显示脑深部静脉及皮层下静脉评分、检测CMB数量及脑皮质表面铁沉积检出率均高于3.0T SWI(P均<0.05)。3.0T及5.0T SWI评估CMB位置一致性极好(Kappa=1.0)。结论5.0T SWI显示脑小静脉及检测CMB效果均优于3.0T SWI,可用于评估脑小血管病所致脑卒中。Objective To observe the value of 5.0T MR susceptibility weighted imaging(SWI)for displaying cerebral small veins and detecting cerebral microbleeds(CMB).Methods Head MR examinations were prospectively performed using both 3.0T and 5.0T MR scanner in 30 stroke patients suspected caused by cerebral small vessel disease.The image quality,effect of displaying cerebral small veins and detecting CMB were compared between 3.0T and 5.0T SWI.Results The image quality scores,signal-to-noise ratios,contrast-to-noise ratios,scores of displaying deep cerebral veins and subcortical veins,the counts of detecting CMB and iron deposition on cortical surface of 5.0T SWI were all higher than those of 3.0T SWI(all P<0.05).High consistency of CMB positions was found between 3.0T and 5.0T SWI(Kappa=1.0).Conclusion The effect of 5.0T MR SWI for displaying cerebral small veins and detecting cerebral microbleeds were better than 3.0T MR SWI,which could be used to assess stroke caused by cerebral small vascular disease.

关 键 词：脑血管疾病 卒中 大脑静脉 颅内出血 磁共振成像 图像质量 前瞻性研究 

分 类 号：R651.1[医药卫生—外科学] R445.2[医药卫生—临床医学]