大脑顶枕沟的三维重建与可视化

Three-Dimensional Reconstruction and Visualization of Cerebral Parietooccipital Sulcus

目的为基于立体定向技术的神经外科手术、介入治疗大脑顶枕区病变及解剖学教学等提供三维可视化模型。方法在微型计算机上,6例正常成人颅脑横断连续薄层MRI数据,导入3D-Doctor软件包中,人工分割顶枕沟、侧脑室、大脑半球,分别以不同颜色标识;用面绘制方法重建顶枕沟、侧脑室及大脑半球三维可视化模型。结果成功重建大脑顶枕沟在整脑中的三维可视化模型,再现了顶枕沟的在活体脑中的形态及位置。结论应用计算机软件重建顶枕沟的三维立体形态,再现其在活体状态下的形态特征,为基于立体定向技术的神经外科手术、介入治疗大脑顶枕区病变及解剖学教学等提供形态学依据。

Objective To provide three-dimensional visualization model of parietooccipital sulcus（PS） for stereotactic neurosurgical operation,interventional radiology and anatomical teaching of the PS area.Methods Six normal adult brain image of MRI was studied by applying 3D-Doctor on a microcomputer,segmented parietooccipital sulcus,ventriculi lateralis,the telencephalon with different color,reconstructing those three-dimensional visualization models with method of surface reconstruction.Results The three-dimensional visualization model of the pareitooccipital sulcus in the whole brain and the shape and location of the pareitooccipital sulcus in the vivo brain were successfully constructed.Conclusion Three dimensional visualization of the pareitooccipital sulcus in vivo brain can display its three-dimensional and adjacent relationship structure,it would provide morphological reference for stereotactic neurosurgical operation,interventional radiology and anatomical teaching of the PS area.