额窦气化与嗅凹深度关系的影像解剖学研究

Radiological correlation between the frontal gasification and the height of olfactory fossa

目的研究分析额筛区与额窦高度气化之间相关性的影像解剖学。方法回顾性分析100例患者200侧的鼻窦CT,在冠状位上测量眶板垂直切线与前颅底交点,此点与中鼻甲骨质筛板附着点的连线与水平线的夹角、眶板垂直切线与中鼻甲骨质筛板附着点之间的水平距离。结果眶板垂直切线与前颅底交点,此点与中鼻甲骨质筛板附着点的连线与水平线的夹角在嗅凹深度≤3mm的角度是(34.52±5.09)°;在嗅凹深度4～7mm的角度是(42.80±6.19)°;在嗅凹深度≥8mm的角度是(52.80±4.89)°。眶板垂直切线与中鼻甲骨质筛板附着点之间的水平距离左侧(10.12±1.44)mm、右侧(11.18±1.45)mm。结论额窦高度气化与眶板垂直切线与前颅底交点,这点与中鼻甲骨质筛板附着点的连线与水平线夹角的大小有关,这个夹角越大额窦高度气化发生的几率越大、同时嗅凹也较深。

Objective To analyze the relationship between the frontal ethmoidal area and the hyperpneumatization of frontal sinus. Methods A retrospective analysis of paranasal coronal computedtomography scans of 200 sides from 100 patients were performed. The junction point between vertical line of orbital plate and anterior cranial fossa,the angle from the line between the above point and attachment point of cribriform plate to horizontal line,the distance from vertical line of orbital plate to attachment point of cribriform plate,were measure respectively. Results The angles from the line between the junctional point and attachment point of cribriform plate to horizontal line were （34.52±5.09）°,（42.80±6.19）°,and （52.80± 4.89）° at the level of the olfactory fossa with the depths ≤3 mm,4～7 mm or ≥8 mm respectively. The distances from vertical line of orbital plate to attachment point of cribriform plate were （10.12±1.44）mm and （11.18±1.45）mm for the left and right respectively. Conclusions The presence of hyperpneumatization of the frontal sinus concerns with the angle from the line between the junctional point and attachment point of cribriform plate to horizontal line,with the more large angle,the more high rate of frontal gasification,and the more deep olfactory fossa.