CT辅助咽后壁瓣手术设计

目的 建立CT辅助设计咽后壁瓣的方法,以提高治疗效果。方法 应用CT测量26例腭咽闭合不全者在静止和发“i”时腭咽腔的宽度和长度,观察分析咽后壁瓣成形术所需的宽度、长度和咽后壁瓣蒂的位置和与软腭的附着位置。结果 静止时腭咽腔的宽度15.10-37.25mm,平均27.01mm,长度12.54-30.39mm,平均22.10mm;发“i”时腭咽腔的宽度为9.11-34.06mm,平均17.69mm;咽后壁瓣蒂的位置都在第一颈椎平面或以上;与软腭的附着位置大部分在软腭的中后1/3处。结论 CT作为一种定量评价腭咽闭合功能的方法,能够辅助设计咽后壁瓣手术方法。

CT assist in surgical design for the posterior pharyngeal flap

Objective To establish a method for assist design of the posterior pharyngeal flap (PPF) Methods The width, length of velopharyngeal space in repose and phonation of "i" in 26 cases with VPI were measured with CT The width and length of PPF needed, the location of the pedicle and the contact position with the soft palate were analyzed Results The width of velopharyngeal space in repose ranged from 15 10 to 37 25 mm,with the average of 27 01 mm,the length was 12 54 to 30 39 mm,with the average of 22 10 mm The width in phonation of"i" was 9 11 to 34 06 mm,with the average of 17 69 mm,the position of the pedicle wasall located at the level of the first cervical vertebra or above and the contact area of the flap with the soft palate was in the middle posterior 1/3 mostly Conclusion As a method to quantitatively evaluate velopharyngeal function, CT can assist in design for the PPF