摘要
目的探讨婴幼儿小下颌畸形伴阻塞性睡眠呼吸暂停综合征(0SAS)的CT征象。方法对42例小下颌伴OSAS的患儿(小下颌组)进行CT检查。同期选取26例下颌骨发育正常但因其他疾病接受颈、颌面部CT检查的患儿作为对照组。测量下颌骨左右径(A_线)、前后径(B_线)和下颌骨体夹角(α°),计算A线/B线比值;分别测量上气道腭咽区、舌咽区及喉咽区最狭窄处横截面积(CSA,CSA_腭、CSA_舌、CSA_喉)、矢状径(AP,AP_腭、AP_舌、AP_喉)和横径(LR,LR_腭、LR_舌、LR_喉)。并对各测量值进行比较分析。结果与对照组比较,小下颌组下颌骨B线缩短,A线/B线比值、α°增大,CSA舌、AP舌减小,LR舌增大,差异均有统计学意义(P均<0.05)。小下颌组的CSA_舌与A线、B线均呈正相关(r=0.30、0.41,P均<0.05),与A线/B线比值、α°均呈负相关(r=-0.36、-0.41,P均<0.05);CSA_喉与A线呈正相关(r=0.34,P<0.05)。结论小下颌畸形伴OSAS患儿同时存在下颌骨短小后缩和上气道的狭窄,颌面部CT表现具有一定特征性,对早期诊断具有提示作用。
Objective To assess the CT manifestations of micrognathia in infants with obstructive sleep apnea syndrome（OSAS）.Methods A total of 42 infants with OSAS and micrognathia（micrognathia group）were enrolled and scanned by CT.In the same term,26 infants with normal mandibular（control group）were also underwent CT scanning because of other diseases.The parameters of mandibular and upper airway were set and measured.The mandibular parameters included the left-right diameter（line A）,anterior-posterior diameter（line B）,the angle（α°）of mandibular and the ratio of line A and B（line A/B ratio）.The upper airway parameters mainly included the cross section area（CSA）,the anterior-posterior（AP）and left-right（LR）diameters.And the measurements of upper airway were performed on the narrowest part of velopharyngeal,glosspharyngeal and laryngopharynx（CSA_v,CSA_g,CSA_l;AP_v,AP_g,AP_l;LR_v,LR_g,and LR_l）.While the statistical analysis was done.Results Compared with control group,the line A/B ratio and α° of mandibular increased,and line B decreased（all P〈0.05）.The CSA_g and AP_g were decreased,and LR_g was increased in micrognathia group（all P〈0.05）.In micrognathia group,there were significant positive correlations between CSA_g and line A（r=0.30,P〈0.05）,and between CSA_g and line B（r=0.41,P〈0.05）.The significant negative correlations were found between CSA_g and line A/B ratio（r=-0.36,P〈0.05）,and between CSAgandα°（r=-0.41,P〈0.05）.And significant positive correlation was found between CSA_l and line A（r=0.34,P〈0.05）.Conclusion Micrognathia infants with OSAS had the CT manifestations of short posterior mandibular and narrow upper air,these CT features has implications for early diagnosis.
作者
李建明
崔颖秋
徐文彪
刘珍银
吴慧莹
钟建文
张靖
LI Jianming CUI Yingqiu XU Wenbiao LIU Zhenyin WU Huiying ZHONG Jianwen ZHANG jingji(Department of Radiology Department of Oral and Mazcillo facial Surgery Department of Otorhinolaryngoloy , Guangzhou Woman and Children＇s Medical Center, Guangzhou 510120, China)
出处
《中国医学影像技术》
CSCD
北大核心
2017年第2期203-206,共4页
Chinese Journal of Medical Imaging Technology
基金
广州市医药卫生科技项目(20121A011061)
