Yan Yu-chun, Wu Shuo-chun, Yuan Xin-yu, Gu Qing-long, Bai Zhen-hua, Guo Hong-wei
Department of Radiology, Capital Institute of Pediatrics, Beijing, China.
Zhonghua Er Bi Yan Hou Tou Jing Wai Ke Za Zhi. 2011 Aug;46(8):650-3.
To explore the normal aerification of paranasal sinuses in Chinese children with magnetic resonance imaging.
Two hundred and eighty Chinese children aged from 17 days to 14 years without any symptoms related to sinusitis were statistically analyzed in MRI features, including counting the number of paranasal sinus pneumatization and the maximum axial and sagittal area of the left maxillary.
The pneumatization rate of maxillary sinus was 85% in children aged from 0 to 1 years. Until 3 years the pneumatization rate of maxillary sinus was 95% and there was no significant difference in boys and girls (χ(2) = 0.741, P = 0.389). The pneumatization rate of maxillary sinus reached 100% after 4 years old. The pneumatization rate of ethmoid sinus was 100% in this study. The pneumatization rate of sphenoid sinus was 0 within 1 year old, 49% within 4 years old and 100% after 7 years old. There was no significant difference in boys and girls on the pneumatization rate of sphenoid sinus (χ(2) = 2.452, P = 0.117). The pneumatization rate of frontal sinus was 0 within 5 years old, 62% within 9 years old and 95% after 10 years old. There was no significant difference in boys and girls on the pneumatization rate of frontal sinus (χ(2) = 0.124, P = 0.724). The axial and sagittal maximum area of maxillary sinus was (689.28 ± 221.79) and (659.76 ± 263.31) mm(2) in girls and (668.13 ± 206.38) and (638.60 ± 207.67) mm(2) in boys. The differences were significant (t = -19.78, P < 0.001; t = -19.89, P < 0.001).
The study of the development and normal aerification of paranasal sinuses of children can help radiologist make correct diagnosis of paranasal sinuses in children.
利用磁共振成像探索中国儿童鼻窦的正常气化情况。
对280例年龄从17天至14岁、无任何鼻窦炎相关症状的中国儿童进行磁共振成像特征的统计分析，包括计算鼻窦气化的数量以及左上颌窦的最大轴向和矢状面面积。
0至1岁儿童的上颌窦气化率为85%。到3岁时，上颌窦气化率为95%，男孩和女孩之间无显著差异（χ(2)=0.741，P=0.389）。4岁以后上颌窦气化率达到100%。本研究中筛窦气化率为100%。蝶窦在1岁以内气化率为0，4岁以内为49%，7岁以后为100%。蝶窦气化率在男孩和女孩之间无显著差异（χ(2)=2.452，P=0.117）。额窦在5岁以内气化率为0，9岁以内为62%，10岁以后为95%。额窦气化率在男孩和女孩之间无显著差异（χ(2)=0.124，P=0.724）。女孩上颌窦的轴向和矢状面最大面积分别为(689.28±221.79)和(659.76±263.31)mm²，男孩分别为(668.13±206.38)和(638.60±207.67)mm²。差异具有显著性（t=-19.78，P<0.001；t=-19.89，P<0.001）。
对儿童鼻窦发育和正常气化的研究有助于放射科医生对儿童鼻窦进行正确诊断。
