Value of Three-dimensional Interactive Localization of the Anterior Ethmoidal Canals in Minimally Invasive Nasal Surgery
- VernacularTitle:筛前动脉三维交互观察在鼻微创手术中的定位意义
- Author:
Li ZHU
;
Haibo WU
;
Gaoli FANG
- Publication Type:Journal Article
- Keywords:
Anterior ethmoidal canal;
Three dimensions;
Interactive localization;
Lamella
- From:Chinese Journal of Minimally Invasive Surgery
2005;0(12):-
- CountryChina
- Language:Chinese
-
Abstract:
Objective To explore the value of three-dimensional interactive localization of the anterior ethmoidal canals(AECs)in minimally invasive nasal surgery.Methods Thin-section three-dimensional CT images of the paranasal sinus in 80 patients(160 sides)were analyzed by using interactive localization system.The length and angulation of the AECs were recorded.The relationship between the positions of the AECs and anatomical landmarks were viewed in coronal and sagittal planes.Results The length and angulation of the AECs were(6.9?1.8)mm and(126.6?16.0)?,respectively.The distance between the anterior ethmoidal foramen and the anterior ethmoidal canal to the roof was(7.0?2.2)mm and(2.8 ? 2.0)mm,respectively.The AEC was identified as a suspending separate canal in 35.0%(56/160)sides.In the AECs plane on coronal images,the sagittal part of middle turbinate was found as 74.4%(119/160),the basal lamella of middle turbinate was 25.0%(40/160),and the superior turbinate was 0.6%(1/160).While on the sagittal planes,the position of AECs located on the basal lamella of ethmoida,on the basal lamella of middle turbinate,between the basal lamella of uncinate process and the basal lamella of ethmoida,between the basal lamella of ethmoida,and the basal lamella of middle turbinate were found in 23.8%(38/160),45.0%(72/160),1.2%(2/160)and 30.0%(48/160)of the cases,respectively.Conclusion AECs can be measured and located correctly by three-dimensional interactive system.
