摘要
磁敏感加权成像(SWI)是包含相位图像和幅度图像的三维、高分辨、完全流速补偿的梯度回波序列,它不同于传统的自旋回波序列,对磁化率不同的物质如静脉结构和血液代谢物显示敏感。因此对颅内的微出血、出血性脑梗死、血管畸形、脑肿瘤、铁沉积及相关疾病都有较高的应用价值。特别是对微小病变的显示具有优势。本文就其原理和及其在颅内病变中的临床应用进行综述。
Magnetic sensitive weighted imaging(SWI)is a three-dimensional,high-resolution,fully velocity compensated gradient echo sequence including phase and amplitude images.It is different from the traditional spin echo sequence and sensitive to the display of substances with different magnetic susceptibility,such as vein structure and blood metabolites.Therefore,it has a high value in the application of intracerebral hemorrhage,hemorrhagic cerebral infarction,vascular malformation,brain tumor,iron deposition and related diseases.In particular,it has advantages in the display of micro lesions.This article reviews its principle and clinical application in intracranial lesions.
作者
孙丽
钟华
刘杨
Sun Li;Zhong Hua;Liu Yang(Department of Imaging,Dalian Friendship Hospital,Dalian,Liaoning 116001,China)
出处
《影像研究与医学应用》
2020年第1期3-4,共2页
Journal of Imaging Research and Medical Applications
关键词
核磁共振成像
磁敏感加权成像序列
计算机图像后处理
颅内病变
MRI
Magnetic sensitive weighted imaging sequence
Computer image post-processing
Intracranial lesions
