MRI识别正常下丘脑部分神经核团

发布时间：2018-04-30 14:53

本文选题：下丘脑 + 神经核　；参考：《中国医学影像技术》2013年08期

【摘要】：目的采用MRI识别正常成人下丘脑神经核团。方法对20名成年健康志愿者行冠状位T1W和T2W扫描;将3个成人头颅标本制成冠状面断层标本,辨认下丘脑神经核团;对比观察下丘脑神经核团解剖学和影像学特征。结果断层标本中,根据下丘脑白质如前连合、穹窿、视束和乳头丘脑束,可辨认主要神经核团。MRI中,与正常脑皮质相比,上述白质T1WI呈稍高信号、T2WI呈稍低信号;根据前连合和3脑室可定位视前核,T1WI呈稍高信号、T2WI呈稍低信号;根据前连合和视束可定位视上核,T1WI呈等信号、T2WI呈稍高信号;根据3脑室和穹窿可定位室旁核、漏斗核,T1WI呈等信号、T2WI呈稍高信号;根据乳头丘脑束可辨认乳头体核,T1WI呈等信号、T2WI呈稍低信号。结论以白质和脑室为定位标志,MRI可清晰显示各具特征的下丘脑主要神经核团。
[Abstract]:Objective to identify hypothalamic nuclei in normal adults by MRI. Methods Coronal T1W and T2W scans were performed in 20 adult healthy volunteers, and 3 adult head specimens were made into coronal sectional specimens to identify hypothalamic nuclei, and the anatomic and imaging features of hypothalamic neuronuclei were observed. Results according to the hypothalamic white matter such as anterior fornix, optic tract and papillary thalamic tract, the main nucleus of the nerve could be identified in the tomographic specimens. In contrast to the normal cerebral cortex, the white matter T1WI showed slightly higher signal intensity on T _ 2WI and slightly lower signal intensity on T _ 2WI. According to the anterior and third ventricle, the supraoptic nucleus can be located on T1WI with slightly high signal intensity and slightly low signal on T2WI; the supraoptic nucleus on T1WI is slightly hyperintense on T1WI, and the paraventricular nucleus can be located according to the 3rd ventricle and fornix, and the paraventricular nucleus can be located according to the T1WI of the supraoptic nucleus, and the supraoptic nucleus can be located on the T1WI of the supraoptic nucleus. In the funnel nucleus, the signal intensity was slightly higher on T _ 1WI and slightly lower on T _ 1WI and T _ 2WI. Conclusion MRI can clearly display the main hypothalamic nuclei with white matter and ventricle as localization markers.
【作者单位】：中国人民解放军第105医院影像科;安徽医科大学人体解剖学教研室;
【基金】：国家自然科学基金青年基金项目(81200895)
【分类号】：R322.8

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