这些工作为提取掌纹特征，特别是掌纹三叉点的定位，奠定了良好的基础。
All these works laid a good foundation for pattern recognition of palm print characteristics, especially at the palm trident point.
目的：探讨利用双靶点提高伽玛刀治疗原发性三叉神经痛有效率和降低复发率的可能性。
Objective: To investigate the improving effectiveness and possibilities of decreasing the recurrence of trigeminal neuralgia by utilizing bi-target treatment of gamma knife.
同时对42例定位困难的三叉神经痛病人，在射频热凝治疗术中应用X线、三维CT或导航进行卵圆孔定位或在术中验证靶点。
X-ray 3D-CT and navigation oval foramen locations were used in 42 cases intractable location so that the direction and position could be defined for trigeminal neuralgia.
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