蝶窦口的影像解剖测量及其临床意义

目的测量蝶窦口与周围解剖结构的影像解剖数据，为临床提供相关数据。方法选取30例蝶窦无异常的健康成年志愿者行鼻窦薄层扫描，并行矢状位及冠状位的重建，利用工作站对蝶窦口与周围结构进行测量。结果蝶窦口的最大上下径为(2.28±0.52)mm，左右径为(2.06±0.32)mm，蝶窦口与前鼻孔的距离为(72.34±3.67)mm，蝶窦口与蝶窦顶壁、后壁、下壁及外侧壁的最大距离分别为(10.64±3.99)、(17.68±2.78)、(13.25±3.50)、(8.76±3.79)mm。结论蝶窦口为经蝶手术的重要解剖标志，扩大蝶窦口应自蝶窦口向内下方扩大，向上不易超过(10.64±3.99)mm，向外侧不易超过(8.76±3.79)mm。

Imaging anatomy of the apertura of the sphenoidal sinus

To measure the imaging anatomical data of the apertura of sphenoidal sinuses and their surrounding structure and to provide clinical guidance for surgeons. Methods30 adults with a normal sphenoidal sinus were subjected to lamella CT scanning of rhino-sinuses. Axial and frontal reconstructions were performed. The apertura of sphenoidal sinuses and their surrounding structures were measured. ResultsThe maximal vertical longitude of sphenoidal sinuses was (2.28±0.52)mm and the maximal horizontal longitude was (2.06±0.32)mm. Distance between the apertura of the sphenoidal sinus and the anterior naris was (72.34±3.67)mm， the maximal distances between the apertura and hanging wall, posterior wall, inferior wall and lateral wall of the sphenoidal sinus were (10.64±3.99), (17.68±2.78), (13.25±3.50) and (8.76±3.79)mm, respectively. ConclusionsThe apertura of the sphenoidal sinus is the vital anatomic landmark for per-sphenoidal operations, and it should be intero-inferiorly oriented not exceeding 10.64±3.99mm upwards and 8.76±3.79mm laterally.