大脑背外侧面浅静脉的磁敏感加权成像  

Superficial veins located in dorsolateral aspect of hemispheres on susceptibility-weighted imaging

作　　者：陈争珍 李昌盛 许琳 陈黛茜 闻彩云[4] 陈成春 CHEN Zheng-zhen;LI Chang-sheng;XU Lin;CHEN Dai-xi;WEN Cai-yun;CHEN Cheng-chun(Department of Basic Medical Sciences,Renji College of Wenzhou Medical University,Zhejiang Wenzhou 325035,China;Department of Anatomy,School of Basic Medical Sciences of Wenzhou Medical University,Zhejiang Wenzhou 325035,China;Department of Traditional Chinese Medicine,the First Affiliated Hospital of Wenzhou Medical University,Zhejiang Wenzhou 325015,China;Department of Radiology y the First Affiliated Hospital of Wenzhou Medical University,Zhejiang Wenzhou 325015,China)

机构地区：[1]温州医科大学仁济学院基础医学部,浙江温州325035 [2]温州医科大学基础医学院解剖学教研室,浙江温州325035 [3]温州医科大学附属第一医院中医科,浙江温州325015 [4]温州医科大学附属第一医院放射科,浙江温州325015

出　　处：《解剖学报》2022年第3期330-334,共5页Acta Anatomica Sinica

基　　金：浙江省教育厅科研项目(Y202045477)。

摘　　要：目的应用磁敏感加权成像(SWI)技术探讨正常大脑背外侧面浅静脉是否存在生理性不对称显影。方法对45名健康青年志愿者行头颅常规磁共振检查,以排除颅内病变,再行SWI序列扫描。在经半卵圆中心、胼胝体干、胼胝体压部和上丘这4个横断层面的SWI图像上,根据数量多少、管径大小和信号强度来评估大脑背外侧面浅静脉。结果经半卵圆中心、胼胝体干、胼胝体压部和上丘这4个横断层面,双侧大脑背外侧面浅静脉不对称显影的出现率分别为20.0%、37.8%、35.6%和26.7%,其中上述4个横断面双侧大脑背外侧面浅静脉轻度不对称显影的出现率分别为17.8%、31.1%、31.1%和24.4%,显著不对称显影的出现率分别为2.2%、6.7%、4.4%和2.2%。结论在不同横断层面SWI图像上双侧大脑背外侧面浅静脉会出现生理性的不对称显影,以轻度为主。因此,当脑血管病变时,若横断层面SWI图像显示双侧大脑背外侧面浅静脉出现不对称显影需考虑是否为生理现象。Objective To investigate whether physiological asymmetry of normal bilateral superficial veins located in dorsolateral aspects of hemispheres is existed on susceptibility-weighted imaging(SWI).Methods There were 45 healthy young volunteers in this study.After exclusion of intracranial lesions by using common brain magnetic resonance imaging examination,they underwent SWI examination.We observed the number,diameter and signal intensity of superficial veins located in dorsolateral aspects of hemispheres according to the images of SWI on transverse sections through the centrum semiovale,trunk of corpus callosum,splenium of corpus callosum,and superior colliculus.Results The frequencies of asymmetry of the bilateral superficial veins located in dorsolateral aspects of hemispheres on transverse sections through the centrum semiovale,trunk of corpus callosum,splenium of corpus callosum,and superior colliculus were 20.0%,37.8%,35.6%and 26.7%,respectively.The frequencies of mild asymmetry of the bilateral superficial veins located in dorsolateral aspects of hemispheres on above transverse sections were 17.8%,31.1%,31.1%and 24.4%respectively,and the frequencies of prominent asymmetry were 2.2%,6.7%,4.4%and 2.2%,respectively.According to chi square test,there was no gender difference in asymmetry of the bilateral superficial veins located in dorsolateral aspects of hemispheres.Conclusion SWI technique was used to show the physiological asymmetry of the bilateral superficial veins located in dorsolateral aspects of hemispheres on different transverse sections.Most of them are mild.Therefore,when cerebrovascular disease occurs,if transverse sections of images by SWI show asymmetry of the bilateral superficial veins located in dorsolateral aspects of hemispheres,the possibility of physiological phenomenon is needed to take into consideration.

关 键 词：背外侧面 大脑浅静脉 不对称 磁敏感加权成像 人 

分 类 号：R445[医药卫生—影像医学与核医学]