Abstract：Objective:To explore puncture depth in percutaneous radio-frequency thermocogulation of trigeminal ganglion and provide anatomic basis to avoid intracranial puncture lesion of vessels and nerves. Methods:21 cranial base specimens of the adult were selected. The distance between the midpoint of the medial border of the foramen ovale and the midpoint of the lateral border of the foramen lacerum was measured by vernier caliper (A) and the distance between the midpoint of the medial border of the foramen ovale and the highest point of the superior margin of the trigeminal impression(B) on the internal surface of the cranial base specimens; At the same time ,the distance between the medial border of the foramen ovale and the lateral border of the foramen lacerum at the same direction on the external surface of the cranial base specimens was measured (C) and the vertical diatance of the lateral wall of the foramen lacerum(D) scan horizontally the cranial base with spiral CT, then measure the distance between the medial border of the foramen ovale and the lateral border of the foramen lacerum at same direction on the maximum intensity projection(MIP) images(E) the distance C and the safe distance and the distance E was analyzed to determine whether the distance E can be used to indicate the individual and safe needle depth into the skull at different patients who were treated by PRT.Results:The distance between the midpoint of the medial border of the foramen ovale and the midpoint of the lateral border of the foramen lacerum on the internal surface of the cranial base specimens was 1.19±0.15cm(right) and 1.20±0.14cm(left);②The distance between the midpoint of the medial border of the foramen ovale and the vertex of the trigeminal impression on the internal surface of the cranial base specimens was 1.51±0.17cm(right) and 1.49±0.16cm(left);③The distance between the midpoint of the medial border of the foramen ovale and the midpoint of the lateral border of the foramen lacerum on the external surface of the cranial base specimens was 0.92±0.09cm(right) and 0.92±0.10cm(left);④The vertical distance of the lateral wall of the foramen lacerum was 0.55±0.07cm(right) and 0.55±0.07cm(left); ⑤The distance between the midpoint of the medial border of the foramen ovale and the midpoint of the lateral border of the foramen lacerum at same direction on the maximum intensity projection(MIP) imaging was 1.00±0.17cm(right) and 1.00±0.17cm(left),there was no statistical significance between the distance C and the distance E.Conclusions:The intractanial needle depth should be shorter than 1.00cm.In clinic we can display the accordance to the distance between the medial border of the foramen ovale and the lateral border of the foramen lacerum at the same direction on the maximum intensity projection (MIP) imaging by scanning the cranial base horizontally with spiral CT, then use it to indicate the individual safe needle depth into the skull at different patients treated by PRT.
沈兴模，朱亚文，林建，陶高见. 三叉神经节经皮射频热凝术进针安全深度的解剖与CT对照研究[J]. 中华解剖与临床杂志, 2013, 18(4): 287-290.
SHEN Xing-mo,ZHU Ya-wen,LIN Jian,TAO Gao-jian. Comparative Study of Anatomy and CT Imaging on Puncture Safe Depth in Percutaneous Radio-frequency Thermocogulation of Trigeminal Ganglion. Chinese Journal of Anatomy and Clinics, 2013, 18(4): 287-290.
2013, Vol. 18 
