Abstract：
OBJECTIVE: To elucidate the effectiveness of a 30-degree anteriorly tilted coronal CT in visualizing the anterior wall of the sphenoid sinus.
METHODS: Medical records and CTs of patients who underwent septoplasty, inferior turbinectomy, or endoscopic sinus surgery were reviewed. We evaluated the visibility of the anterior wall of the sphenoid sinus on conventional coronal CT scans and categorized its orientation. We then created anteriorly tilted coronal CT images to evaluate its improved visibility.
RESULTS: A total of 129 patients were evaluated. While conventional coronal CT scans fully visualized the anterior wall of the sphenoid sinus in cases with an Onodi cell, 17.7% remained unidentified when the Onodi cell was absent. However, anteriorly tilted coronal CT scans consistently identified the anterior wall regardless of the presence of an Onodi cell.
CONCLUSIONS: Our study highlights the effectiveness of anteriorly tilted coronal CT scans in consistently visualizing the anterior wall of the sphenoid sinus, regardless of the presence of an Onodi cell. It is possible that some other structures may become less identifiable on anteriorly tilted coronal CT.
METHODS: Medical records and CTs of patients who underwent septoplasty, inferior turbinectomy, or endoscopic sinus surgery were reviewed. We evaluated the visibility of the anterior wall of the sphenoid sinus on conventional coronal CT scans and categorized its orientation. We then created anteriorly tilted coronal CT images to evaluate its improved visibility.
RESULTS: A total of 129 patients were evaluated. While conventional coronal CT scans fully visualized the anterior wall of the sphenoid sinus in cases with an Onodi cell, 17.7% remained unidentified when the Onodi cell was absent. However, anteriorly tilted coronal CT scans consistently identified the anterior wall regardless of the presence of an Onodi cell.
CONCLUSIONS: Our study highlights the effectiveness of anteriorly tilted coronal CT scans in consistently visualizing the anterior wall of the sphenoid sinus, regardless of the presence of an Onodi cell. It is possible that some other structures may become less identifiable on anteriorly tilted coronal CT.
摘要：
目的：阐明30度前倾斜冠状CT在可视化蝶窦前壁中的有效性。
方法：接受鼻中隔成形术的患者的医疗记录和CT，下鼻甲切除术,或内窥镜鼻窦手术进行了审查。我们在常规冠状CT扫描中评估了蝶窦前壁的可见性，并对其方向进行了分类。然后，我们创建了向前倾斜的冠状CT图像，以评估其改善的可见性。
结果：共评估了129例患者。虽然传统的冠状CT扫描在有Onodi细胞的情况下可以完全显示蝶窦的前壁，当Onodi细胞不存在时，仍有17.7％的人身份不明。然而,无论是否存在Onodi细胞，向前倾斜的冠状CT扫描都能始终识别前壁。
结论：我们的研究强调了前倾冠状CT扫描在一致可视化蝶窦前壁方面的有效性，不管Onodi细胞的存在。在向前倾斜的冠状CT上，其他一些结构可能变得不那么可识别。
方法：接受鼻中隔成形术的患者的医疗记录和CT，下鼻甲切除术,或内窥镜鼻窦手术进行了审查。我们在常规冠状CT扫描中评估了蝶窦前壁的可见性，并对其方向进行了分类。然后，我们创建了向前倾斜的冠状CT图像，以评估其改善的可见性。
结果：共评估了129例患者。虽然传统的冠状CT扫描在有Onodi细胞的情况下可以完全显示蝶窦的前壁，当Onodi细胞不存在时，仍有17.7％的人身份不明。然而,无论是否存在Onodi细胞，向前倾斜的冠状CT扫描都能始终识别前壁。
结论：我们的研究强调了前倾冠状CT扫描在一致可视化蝶窦前壁方面的有效性，不管Onodi细胞的存在。在向前倾斜的冠状CT上，其他一些结构可能变得不那么可识别。
