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[Imaging analysis of the ethmoid roof]
Jingping Fan1, Jian Wu, Haiqing Wang
1Department of Otorhinolaryngology, Changzheng Hospital, Second Military Medical University, Shanghai, 200003, China. fanjp99@sh163a.sta.net.cn
Lin Chuang Er Bi Yan Hou Ke Za Zhi = Journal of Clinical Otorhinolaryngology
|April 23, 2005
Summary
Asymmetries in ethmoid roof height and contour were common in paranasal sinus CT scans. Careful review of these anatomical variations is crucial before endoscopic sinus surgery.
Area of Science:
- Radiology
- Anatomy
- Otolaryngology
Background:
- The ethmoid roof is a critical anatomical structure in the skull base.
- Variations in its height and contour can impact surgical procedures.
- Understanding these variations is essential for safe endoscopic sinus surgery.
Purpose of the Study:
- To analyze the anatomical characteristics of the ethmoid roof's height and contour.
- To identify and quantify asymmetries in the fovea ethmoidalis and ethmoid roof-cribriform plate connections.
Main Methods:
- Retrospective review of 160 direct coronal sinus computed tomography (CT) scans.
- Examination of fovea ethmoidalis height and contour.
- Analysis of ethmoid roof and cribriform plate connection modes.
Main Results:
- 15.63% of scans showed height asymmetry in the fovea ethmoidalis.
- 38.75% of patients had contour asymmetry with ethmoid roof flattening.
- The 'high type' connection mode between the ethmoid roof and cribriform plate was most frequent (63.75%).
Conclusions:
- Significant height and contour asymmetries of the ethmoid roof exist.
- Flattening of the fovea ethmoidalis was a common asymmetry.
- Preoperative and intraoperative assessment of paranasal sinus CT is vital for endoscopic sinus surgery.