The reference point determination of stereotactic brain atlas
CHEN Wei-Gao, WANG Ti-Hua, LIU Yan-Bei, LIN Jian-Xin, DING Hai-Chao, SONG Xiang
Chinese Journal of Clinical Anatomy ›› 2012, Vol. 30 ›› Issue (1) : 61-63.
The reference point determination of stereotactic brain atlas
Objective To measure the reference point of stereotactic brain in order to build morphological data for stereotactic brain atlas and stereotactic brain surgery. Methods The brain reference points of AC diameter, PC diameter and ICD length in stereotactic coordinate system were measured from 120 healthy volunteers using modern imaging techniques and 30 corpses using traditional anatomical techniques and then compared with each other. Results In stereotactic space AC and PC were seen clearly both in specimens and in MR imagines. The AC value in dead brain was（2.75±0.76）mm in anteroposterior diameter, （3.85±0.68）mm in vertical diameter, the PC value was （1.87±0.58）mm in anteroposterior diameter and （2.48±0.64）mm in vertical diameter and ICD length was （22.68±1.46mm）. While in healthy volunteers the AC value was （2.80±0.32）mm in anteroposterior diameter and （3.82±0.37）mm in vertical diameter, PC value was （1.76±0.30）mm in anteroposterior diameter and （2.30±0.45）mm vertical diameter, but the ICD length was（23.84±1.32）mm, respectively. Conclusions AC and PC are accurate reference points in stereotactic coordinate system and AC-PC is a constant reference line in brain.
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