| Autor: |
Mohammad Waheed El-Anwar, Ashraf Raafat, Rania Mostafa Almolla, Ahmed Mohamed Alsowey, Saad Elzayat |
| Jazyk: |
angličtina |
| Rok vydání: |
2018 |
| Předmět: |
|
| Zdroj: |
The Egyptian Journal of Radiology and Nuclear Medicine, Vol 49, Iss 4, Pp 1009-1013 (2018) |
| Druh dokumentu: |
article |
| ISSN: |
0378-603X |
| DOI: |
10.1016/j.ejrnm.2018.07.009 |
| Popis: |
Objective: To assess the maxillary sinus ostium (MSO) dimension and measuring the distance to nearby anatomical structures in adults using multi-slice computed tomography (MSCT). Patients and methods: Paranasal CT scans of asymptomatic adults without paranasal sinuses or nasal pathology were included. Axial CT with coronal reformatted images was done for all subjects to get delicate details. Results: In 86 subjects (172 sides), the width of MSO ranged from 1 to 11 mm and distance from the MSO to the anterior maxillary wall (toward nasolacrimal duct) ranged from 7 to 25 mm. While the distance from MSO to the posterior maxillary wall (toward sphenopalatine artery) ranged from 2 to 18 mm. MSO was found above orbital floor level in 74%, at the orbital floor level in 12% and below this level in 13% of our cases. Distance from MSO to the floor of maxilla ranged from 15 to 40 mm (mean = 28.6 ± 6.7).MSO was detected in the posterior third of medial maxillary wall in 47%, in middle third in 32% and the anterior third in only 21%. Anteroposterior diameter of maxillary sinus ranged from 18 to 41 mm. Its horizontal diameter ranged from 10 to 35 mm and its height ranged from 15 to 45 mm. For all measurements of the maxillary sinus and MSO, the differences between right and left side were non-significant. Conclusion: This work describes in details MSO measurements using MSCT and measures the distance from the MSO to the beyond adjacent anatomical structures in the all directions. Keywords: Endoscopic sinus surgery, Sinus surgery, Maxillary sinus ostium, MSCT, FESS |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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