Methods: whole brain from a cadaver of 20 year old s man without gross pathologic changes was cut by milling machine and took a series of pictures.

• 方法:选用20岁左右无脑部病变的男性整尸一具,整颅低温下连续水平磨片、摄片,获得连颅的脑图像,通过计算机分割、重建。