鼻中隔偏曲与鼻粘膜肥厚关系的轴位CT研究

Relationship between nasal septum deviation and nasal mucosa thickening by axial CT

目的 探讨 Ｎ Ｓ Ｄ 的病因学。材料与方法 共１ ６８０ 例连续的以各种原因行头颅 Ｃ Ｔ 检查的个体，有鼻窦手术史或近期做过鼻插管术或面部严重创伤者除外。在眶听线向下３ ｃｍ 处，作２ ～３ 层轴位扫描，观察鼻中隔的形态和鼻粘膜的变化。结果 Ｎ Ｓ Ｄ 的患病率为４８ ．８ ％ ，男性高于女性（５３９ ％ 和３４５ ％ ， Ｐ＜ ００１） 。大部分 Ｎ Ｓ Ｄ 的形态为“ Ｃ”形或“ Ｖ”形（８６１ ％ ） 。此二型左右偏曲方向间无显著性差异（４８ ．５ ％ 和５１ ．５ ％ ， Ｐ＞ ０ ．０５） ，向右偏曲者，５８ ．７ ％ 的伴鼻粘膜肥厚，其中左侧鼻粘膜肥厚明显多于右侧（４６ ．６ ％ ，８ ．８ ％ ， Ｐ＜ ０ ．０１） ；而向左偏曲者，５７ ．３ ％ 的伴发鼻粘膜肥厚，其中右侧鼻粘膜肥厚明显高于左侧（４４ ．２ ％ ，１０ ．５ ％ ， Ｐ＜ ０ ．０１） 。结论 鼻粘膜肥厚可能是 Ｎ Ｓ Ｄ 的病因之一。

Objective To explore the etiology of nasal septum deviation(NSD). Materials and methods The CT imaging data of 1 680 patients with consecutive head examinations due to various reasons excluding patients with prior surgery on the paranasal sinuses,recent nasal intubation or severity facial trauma were prespectively studied,including male 1 236 and female 444 aged from 2 months to 83 years old(mean age 46.4 years).The patients were additional examined slices at the level of 3 cm infraorbital meatal line using axial CT scanning.The morphological features of nasal septum and mucosa were analysed. Results The deviations were detected in 819(48.4%) [666 male(53.9%),153 famale(34.5%)] of 1 680 patients.The incidence difference between male and female was high significant( P <0.01).The majority forms of NSD showed “C shaped' and“'V shaped'(86 1%).The difference between left(342 cases,49 5%)and right(363 cases,51.5%)lateral deviations in the two shapes was no significant( P >0.05).In the right lateral deviations 213(58.7%)cases of nasal mucosa thickening were detected and incidence of left mucosa thickening was much higher than that of right(46.4%,8.8%; P <0.01).In the left lateral deviations 196(57.3%) cases of nasal mucosa thickening were detected and incidence of right mucosa thickening was much higher than that of left(44.2%,10.5%; P <0.01). Conclusion NSD may result from nasal mucosa thickening.