生理状态下舌动脉的解剖特点及其与舌根的关系

Anatomical characteristics of lingual artery in physiological condition and its relationship with tongue base

目的:通过CT三维重建技术,对舌动脉的起源、分段和走行进行研究,探讨其位置关系在临床中的作用。方法:选取10例健康人,CT扫描范围从胸锁关节至眼眶下缘,数据传送到工作站进行三维重建。同时测量舌动脉起始点水平到舌骨大角尖端水平及到颈动脉分叉水平的垂直距离,以及舌动脉与舌表面和舌中线的距离。结果:舌动脉起始点水平到舌骨大角尖端水平的垂直距离为(1.51±0.35)cm,舌动脉起始点水平到颈动脉分叉水平的垂直距离为(0.95±0.31)cm;在舌盲孔前1cm与舌盲孔后1cm的舌动脉与舌中线距离比较,差异有统计学意义(t=45.27,P<0.01)。结论:舌动脉以舌骨大角为标志的分段法更符合舌动脉走行变异大的特点。在进行舌根部消融手术时,要控制深度不超过舌表面2cm,方能避免舌动脉的损伤。

Objective：To provide the clinical anatomic data of the lingual artery with 3D CT reconstruction.Method：Ten healthy subjects were recruited.Spiral CT scan ranged from the sternoclavicular joint to the lower edge of the orbit and the data was subjected to three-dimensional reconstruction.The distance from the origin of the lingual artery to the bifurcation of the common carotid artery and tip of the greater horn of hyoid bone were measured respectively and the distance between the midline of the lingual artery and the midline of tongue were also measured.Result：The horizontal distance between starting level of lingual artery to the level of the hyoid horn tip was（1.51±0.35）cm.The horizontal distance between the level of the lingual artery to the carotid bifurcation was（0.95±0.31）cm.The comparison of the distance from lingual artery 1 cm anterior or posterior to foramen cecum to midline of tongue showed（t=45.27,P〈0.01）a statistically significant difference.Conclusion：The lingual artery could be demonstrated clearly in 3D reconstruction.To ensure the operative safety,the depth of radiofrequency for OSAHS at the tongue base should be limited within 2 centimeters.