摘要
目的使用磁共振弥散张量成像数据三维示踪大脑白质纤维束。方法对18名健康自愿者使用弥散加权-回波平面成像(DW-EPI)序列进行头部DTI检查。输出DICOM格式的DTI图像数据并根据已知的脑白质纤维束的解剖学知识,选取起始区、目标区、回避区,使用Diffusion Tensor VisualizerⅡ软件进行脑白质纤维束示踪三维重建。结果大脑的连合系、联络系和投射系的各种脑白质纤维束的结构和其在三维空间的走行可在每例实验对象的三维示踪结果显示,与解剖学所描述相对比基本一致。结论使用三维脑白质纤维束示踪成像可以在活体立体直观地显示大脑的各种脑白质纤维束。不仅可以用于解剖学教学,还对临床神经系统疾病的辅助诊断和科学研究有潜在的应用价值。
Objective To trace three dimensions cerebral white matter fiber tracks by using magnetic resonance imaging diffusion tensor data. Methods 18 healthy volunteers were scanned to acquire the diffusion tensor data by using a diffusion weighted echo planner pulse sequence （DW-EPI）. The image data were exported in DICOM format, and the seed area, target area and avoid area were selected based on known anatomic knowledge about cerebra white matter fiber tracks. Three dimensions cerebra white matter fiber tracks were traced by using the software named diffusion tensor visualizer Ⅱ. Results In the three dimensions tracing images of any subjects, all kinds of cerebra white matter tracks were identified, including callosal fibers, association fibers and projection fibers, which correlated well with the anatomy descriptions. Conclusion The cerebra white matter tracks could be displayed directly in vivo by tracing them with magnetic resonance diffusion tensor data, which could be useful for education and for the assistant diagnosis of nervous system diseases in clinical purposes.
出处
《解剖学研究》
CAS
2007年第3期198-201,共4页
Anatomy Research
基金
广东省科技计划项目(006B36004014)
关键词
弥散张量成像
磁共振成像
脑白质
端脑
Diffusion tensor imaging
Magnetic resonance imaging
White matter
Cerebrum
