大脑扣带沟分支的影像解剖学研究及意义

目的:观察扣带沟竖直分支的数目及出现概率,为研究扣带区域的发生发育规律以及功能结构关系提供解剖学依据.方法:30名正常成年志愿者行头颅连续MRI矢状断层扫描,层厚7 mm.在eFilm 1.5工作站导入头颅旁正中矢状层MRI图像,观察扣带沟竖直分支的数目及各分支测别的出现率.结果:按副扣带沟的出现与否分别统计扣带沟的分支数目,一般分为无分支、一支、二支和三支4种类型,每种类型具有侧别和个体差异.结论:扣带沟分支的出现率存在明显的侧别差异,左侧比右侧较少出现分支,表明右侧扣带区皮质的折叠程度高于左侧.

Imaging anatomy of the branch of brain cingulate culcus and its significance

Objective:To observe the vertical branches and probability of occurrence in cingulate sulcus for providing the anatomical basis in studying the development pattern and relationship between function and structure of cingulate sulcus.Methods:The brain sagittal MRI(7 mm each layer) of 30 volunteers were obtained.The median sagittal MRI imaging of brain were transported into eFilm 1.5, the vertical branches and appearance frequency of cingulate sulcus were observed.Results:The four types(including zero, one, two and three vertical branches) in cingulate sulcus were found according to the paracingulate sulcus appearance.There were side and individual differences in each type.Conclusions:There is obviously side difference in the branch occurrence of cingulate sulcus.Compared with right side, less branch in left side is found, which indicates that the folding degree in fight cingulate sulcus cortex is high than that in left side.