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利用计算机三维重构技术建立了人及大鼠基底神经节的三维数字化模型 ,并对两者的形态及核团构成进行了比较解剖学研究。在微型计算机上 ,提取人脑及大鼠脑立体定位图谱中含有基底神经节的连续层面 ,利用通用的三维建模及动画软件 3 DStudio MAX,以三维放样的方法 ,在我国首次建立人及大鼠基底神经节的核团及纤维传导通路的三维数字模型 ,对人及大鼠的基底神经节进行了比较解剖学研究。并利用重构的三维模型建立虚拟现实文件 ,在神经解剖学研究中引入浏览器虚拟现实技术 ,实现了任意拆分、组装及旋转上述核团的功能。本研究显示 ,无论在形态上还是在毗邻关系上 ,人与大鼠的基底神经节的差异不大 ;由于人的直立而导致脑干吻尾轴旋转了一定角度 ,其内部核团的相互毗邻关系也随之发生变化 ,从而异于大鼠基底神经节内部核团的毗邻关系 ;基底神经节各个核团间的投射纤维以尽可能短的路径到达靶核团的相应区域 ,构成了拓扑投射关系的基础。
The three-dimensional digital model of human and rat basal ganglia was established by using computer three-dimensional reconstruction technique. The morphology and nuclei of the two groups were compared and anatomically studied. In microcomputers, the stereotaxic maps of human brain and rat brain are extracted to contain continuous levels of basal ganglia. Using the common 3D modeling and animation software 3 DStudio MAX, The three-dimensional digital model of basal ganglia and fiber conduction pathways in rat basal ganglia was used to comparatively study the basal ganglia in rats and humans. The virtual reality file is constructed by using the reconstructed 3D model. Browser virtual reality technology is introduced into the neuroanatomy to realize the function of arbitrarily splitting, assembling and rotating the above nuclei. The present study shows that there is no significant difference in basal ganglia between human and rat both in morphology and in contiguous relationship. The caudal axis of brainstem kisses rotates at an angle due to the erection of human beings. The relationship also changes, which is different from the adjacent relationship of the basal ganglia in the basal ganglia; the projection fibers between the nuclei of the basal ganglia reach the corresponding regions of the target nucleus in the shortest possible path to form the topological projection The basis of the relationship.