人类红核的皮质投射：一项使用1.5-T磁共振成像仪的扩散张量纤维束成像研究
Cortical projections to the human red nucleus: a diffusion tensor tractography study with a 1.5-T MRI machine.
作者信息
Habas Christophe, Cabanis Emmanuel Alain
机构信息
Service de Neuroimagerie, Centre Hospitalier National d'Optalmologie des Quinze-Vingts, Université Pierre et Marie Curie Paris 6, Paris, France.
出版信息
Neuroradiology. 2006 Oct;48(10):755-62. doi: 10.1007/s00234-006-0117-9. Epub 2006 Aug 26.
INTRODUCTION
Previous studies in apes and monkeys have shown that the red nucleus receives projections from the sensorimotor and premotor cortices, whereas other experiments carried out with injured human brains have found corticorubral projections issuing from associative areas. Therefore, we reassessed in vivo the human anatomical projections from the cerebral cortex to the red nucleus using diffusion tensor imaging (DTI) axonal tracking.
METHODS
The connectivity between the cerebral cortex and the red nuclei of seven volunteers was studied at 1.5 T using streamlined DTI axonal tracking.
RESULTS
Trajectories were constantly tracked between the red nuclei and the ipsilateral pericentral and prefrontal cortices, as well as the temporal cortex and the striatum in two subjects. Within the cerebral trunk, trajectories also include the superior cerebellar peduncle and the central tegmental tract.
CONCLUSION
The human red nucleus receives its main afferences from the sensorimotor and prefrontal cortices.
引言
先前对猿类和猴子的研究表明，红核接收来自感觉运动皮层和运动前区皮层的投射，而其他针对人类受伤大脑进行的实验发现，皮质红核投射源自联合区。因此，我们使用扩散张量成像（DTI）轴突追踪技术在活体中重新评估了从大脑皮层到红核的人体解剖学投射。
方法
使用流线型DTI轴突追踪技术在1.5T磁场下研究了7名志愿者大脑皮层与红核之间的连接。
结果
在两名受试者中，持续追踪到红核与同侧中央周围和前额叶皮层以及颞叶皮层和纹状体之间的轨迹。在脑干内，轨迹还包括上小脑脚和中央被盖束。
结论
人类红核主要接收来自感觉运动皮层和前额叶皮层的传入纤维。
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