The distances from the hippocampal tip to the fundus of the sylvian fissure, the surface of fusiform gyrus and the middl海马前端与外侧裂底、颞叶下面、颞叶外侧面和颞极的距离分别为．±．0mm，9．70±． mm，．9±．9mm和 ．0±．8 mm。