摘要
目的:通过螺旋CT影像学研究,重建上颌窦的三维立体形态,探讨上颌窦炎症与上颌窦三维立体形态、容积和气化系数之间的关系。方法:对双侧上颌窦正常者、单侧上颌窦炎症及双侧上颌窦炎症者各50例(均为成年人)行鼻-鼻窦螺旋CT扫描,重建上颌窦的三维立体形态;测量并计算上颌窦的容积和气化系数,分析上颌窦三维立体形态、容积和气化系数与上颌窦炎的关系。结果:上颌窦炎组上颌窦形态不规则(凹陷、变形),容积为(14 971.86±360.93)mm3,气化系数为0.252±0.057;正常组上颌窦形态规则,容积为(15 018.64±473.36)mm3,气化系数为0.345±0.071;两组之间容积比较差异无统计学意义,气化系数比较差异有统计学意义。结论:上颌窦三维重建更加直观地描述了上颌窦的三维结构和立体形态;上颌窦炎症与上颌窦容积无相关性,而主要与上颌窦的三维立体形态及气化系数有关;上颌窦三维立体形态规则,气化系数>0.300,上颌窦发生炎症的概率较低;反之机会增大。成人炎症上颌窦可能来源于儿童及青少年期一个较大的上颌窦。
A three-dimensional morphology of the maxillary sinus was reconstructed. We studied the relationship between sinusitis and three-dimensional morphology, volume as well as gasification coefficients. Method.. One hundred and fifty adult subjects were selected in this study, and divided into three groups： normal bi- lateral maxillary sinus, unilateral maxillary sinusitis and bilateral maxillary sinusitis, with fifty cases in each group. Use Siemens helix CT for sequential scanning of the nasal-sinus. After scanning, the DICOM data was re- corded in DVD-R and transferred into another computer for reconstruction and measurement. Result：The volume of the normal maxillary sinus group was（15 018.64± 473.36）mm3. The volume of the maxillary sinusitis group was （14 971.86±360.93）mm3. There was no significant difference between the values of volumes for the normal max- illary sinus group and maxillary sinusitis group. The gasification coefficient was 0. 345 ± 0. 071 for the normal maxillary sinus group,0. 252± 0. 057 for the maxillary sinusitis group. There was significant difference between the two groups. Conclusion： Maxillary sinus reconstruction permits more vivid visualization of the three-dimensional structure and three-dimensional shape of the maxillary sinus. The occurrence of the maxillary sinusitis is closely re- lated to the three-dimensional shape of the maxillary sinus and the gasification coefficient measured. The more reg- ular the three-dimensional shape of the maxillary sinus, with the gasification coefficient ~0. 300, the lower the probability of the maxillary sinusitis. Otherwise, the probability increases. Adult inflammation of maxillary sinus may be originated from a relatively larger volume of maxillary sinus in childhood and adolescence.
出处
《临床耳鼻咽喉头颈外科杂志》
CAS
CSCD
北大核心
2012年第20期921-925,共5页
Journal of Clinical Otorhinolaryngology Head And Neck Surgery
关键词
上颌窦
三维立体形态
气化系数
maxillary sinus
three-dimensional morphology
gasification coefficient
