The correlation between mastoid pneumatization and the aeration status of middle ear on computed tomography in atelectatic ears

Lai Thu Huong1, Vu Dang Luu2, Le Van Khang2
1 Bạch Mai Hospital
2 Bach Mai Hospital

Main Article Content

Abstract

Objectives: Describe characteristic imagings and comment on the correlation between types of mastoid pneumatization and the aeration status
of middler ear on computed tomography in atelectatic ears.
Material and methods: The study describes 74 ears of 74 atelectatic patients who had 64-128 slice temporal bone CT, at Bach Mai Hospital and National Otorhinorarynology Hospital from 12/2018 to 3/ 2020.
Results: Among atelectatic ears, condensed images of the middle ear on CT scanner contain: the anterior epitympanic recess (AER) in 35.1%, the inner epitympanum in 45.9%, the lateral epitympanum in 54.1%, the mesotympanum in 20.3%, the hypotympanum in 3.5%, the antrum in 52.7%. The mastoid pneumatizations on CT scanner include sclerotic mastoid in 44.6%, diploic mastoid accounts for 41.9%, the well pneumatized mastoid accounts for 13.5%, the difference has statistical significance with p = 0.001. There is a close significantly correlation between mastoid pneumatization and condensations in middle ear spaces (anterior epitympanic recess - attic - antrum) in atelectatic ears with p <0.0001, Cramer's V = 0.957.
Conclusion: There is a close statistically significant correlation between aeration status of middle ear spaces and mastoid pneumatization on CT. Sclerotic mastoid or diploic mastoid are advantageous to the appearance and development of atelectatic ear

Article Details

References

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