额隐窝气房与慢性额窦炎的相关性分析

The correlation of frontal recess cells and chronic frontal sinusitis

目的:分析额隐窝气房与慢性额窦炎的相关性。方法:收集69例(慢性额窦炎组37例,对照组32例)符合病例选择标准的鼻窦CT影像,在图像工作站上进行轴位、冠状位、矢状位重建获得额隐窝区域影像(层厚0.6mm,层距0.4mm)。根据Lee等的额隐窝气房CT分类判定标准,应用图像分析软件,观察慢性额窦炎组与对照组额隐窝气房的分布类型,比较两组的差异,应用Logistic回归分析额隐窝气房与慢性额窦炎的相关性。结果:获得128侧额隐窝区域三维影像,每组各64侧,其中Ⅲ型额气房、眶上筛房在慢性额窦炎组的出现率(分别为37.5%和70.3%)显著高于对照组(分别为12.5%和48.4%),差异均有统计学意义(均P<0.01);其他类型气房在两组中的出现率差异无统计学意义。Logistic回归分析显示Ⅲ型额气房(OR=3.740,P=0.005)、眶上筛房(OR=2.242,P=0.031)与慢性额窦炎相关。结论:Ⅲ型额气房、眶上筛房可能是导致额窦引流通道狭窄的关键解剖因素,与慢性额窦炎密切相关。

Objective： To investigate the cqrrelation of frontal recess cells and chronic frontal sinusitis. MethodtWe collected sinus CT images of 69 patiehts who met the case selection criteria, which were divided into the chronic frontal sinusitis group （37 cases） and the control group （32 cases）, and then obtained frontal recess region images by evaluating the axial, coronal, and sagittal reconstruction images on a computer workstation （thickness 00 6 mm, interval 0.4 mm）. According to the criteria of frontal recess cells CT classification of Lee and Kuhn, we analyzed the distribution type of frontal recess eells, and compared the differences between the chronic frontal sinusitis group and the control group, using image analysis software, and analyzed the correlation of frontal recess cells and chronic frontal sinusitis with Logistic regression analysis. Result： We had 128 sides frontal recess region three-dimensional images, each of the 64 sides. The occurrence rate of type Ⅲ frontal cell and supraorbital ethmoid cell （37.5 % and 70.3 %, separately） in the chronic frontal sinusitis group were significantly higher than that in the control group （12.5% and 48.4%, separately）, they had statistically difference （P〈0.01, in all）. Other types of frontal recess cells occurrence rate between the two groups had no statistically significant differ- ence. Logistic regression analysis revealed that the type Ⅲ frontal cell （OR= 3. 740. P=0. 005）, and supraorbital ethmoid cell （OR= 2. 242, P = 0. 031） were closely associated with chronic frontal sinusitis. Conclusion： Type Ⅲ frontal cell and supraorbital ethmoid cell may be the key anatomical factors causing frontal sinus drainage pathway narrowing. These two type frontal recess ceils are intimately related to the chronic frontal sinusitis.