三维动脉自旋标记在神经系统非脑血管疾病中的应用进展

发布时间：2018-06-22 10:05

本文选题：动脉自旋标记 + 成像平面　；参考：《实用医学杂志》2017年16期

【摘要】：正动脉自旋标记(arterial spin labeling,ASL)采用首过灌注成像方法 ,其基本原理是利用射频脉冲标记动脉血中的水质子,这些动脉血流经成像平面后形成灌注成像,此图像与未标记的静态图像信号相减得一幅灌注加权图像~[1-3]。常规ASL采用2D及平面回波成像(EPI),而三维动脉自旋标记(3D-ASL)~[4]是基于快速自旋回波的螺旋K(spiral K)空间采集,其优势包括成像范围更广及影像质
[Abstract]:Spin-labeled (arterial spin labelling ASL) is based on first-pass perfusion imaging, which is based on radiofrequency pulse labeling of water in arterial blood, which passes through the imaging plane to form perfusion imaging. This image is subtracted from the unlabeled still image signal to obtain a perfusion weighted image [1-3]. Conventional ASL uses 2D and plane echo imaging (EPI), while 3D arterial spin labeling (3D-ASL) ~ [4] is a spatial acquisition of spiral K (spiral K) based on fast spin echo. Its advantages include wider imaging range and image quality.
【作者单位】：南昌大学第二附属医院神经内科;
【基金】：江西省卫生计生委科技计划项目(编号:20171066)
【分类号】：R741

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