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Current Medical Imaging

Author(s): Elif Gündoğdu* and Uğur Toprak

DOI: 10.2174/1573405615666190327110216

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Comparison of the Aditus ad Antrum Diameter on CT between Patients with Chronic Otitis Media and Healthy Individuals

Page: [990 - 993] Pages: 4

  • * (Excluding Mailing and Handling)

Abstract

Background: The middle ear cavity is ventilated through the aditus ad antrum. Aditus blockage contributes to the pathology of otitis media.

Objective: To determine the normal values of the aditus ad antrum diameter on computed tomography and to investigate its relationship with chronic otitis media and related pathologies (tympanosclerosis and myringosclerosis).

Methods: The temporal CT images of 162 individuals were evaluated retrospectively. In the axial sections, the inner diameter of the aditus was measured at the narrowest point at the cortex. The differences in diameter were compared between diseased and healthy ears.

Results: In healthy individuals, the diameter was narrower in women. There was no difference between the right and left ears in healthy subjects. No correlation was found between age and diameter. In male patients with myringosclerosis, the diameter was slightly narrower on both sides but more marked on the left. In female patients with myringosclerosis, the diameter in both ears was slightly narrower. In cases of otitis media and tympanosclerosis, the diameter was less than that of healthy individuals, despite the lack of statistically significant result in all cases.

Conclusion: The aditus ad antrum was narrower in diseased ears, indicating that a blocked aditus may contribute to the development of otitis media, as well as mucosal diseases.

Keywords: Aditus ad antrum, otitis media, myringosclerosis, tympanosclerosis, computed tomography, diameter.

Graphical Abstract

[1]
Palva T, Ramsay H. Incudal folds and epitympanic aeration. Am J Otol 1996; 17(5): 700-8.
[PMID: 8892564]
[2]
Marchioni D, Molteni G, Presutti L. Endoscopic anatomy of the middle ear. Indian J Otolaryngol Head Neck Surg 2011; 63(2): 101-13.
[http://dx.doi.org/10.1007/s12070-011-0159-0] [PMID: 22468244]
[3]
Marchioni D, Alicandri-Ciufelli M, Molteni G, Artioli FL, Genovese E, Presutti L. Selective epitympanic dysventilation syndrome. Laryngoscope 2010; 120(5): 1028-33.
[PMID: 20422699]
[4]
Bahgat M. Patency of the aditus ad antrum in tubotympanic chronic suppurative otitis media. Otolaryngol Head Neck Surg 2015; 152(2): 331-5.
[http://dx.doi.org/10.1177/0194599814559698] [PMID: 25422281]
[5]
Kurien R, Chrisolyte S, Rupa V. Inflation-deflation test as a predictor of aditus patency in patients with chronic suppurative otitis media. Indian J Otolaryngol Head Neck Surg 2009; 61(3): 169-72.
[http://dx.doi.org/10.1007/s12070-009-0060-2] [PMID: 23120629]
[6]
Manjunath MK, Swarup RJ, Chary G, Shadab MD. Myringosclerosis: an indication of a blocked aditus. Indian J Otolaryngol Head Neck Surg 2012; 64(3): 230-2.
[http://dx.doi.org/10.1007/s12070-011-0321-8] [PMID: 23998025]
[7]
El-Kady AS, Haroun Y, Kassem MK, Galal O. The Value of Computed Tomography Scanning in Assessment of Aditus ad Antrum Patency and Choice of Treatment Line in Revision Myringoplasty. Med J Cairo Univ 2009; 2(10): 53-7.
[8]
Görür K, Özcan C, Talas DÜ. The computed tomographical and tympanometrical evaluation of mastoid pneumatization and attic blockage in patients with chronic otitis media with effusion. Int J Pediatr Otorhinolaryngol 2006; 70(3): 481-5.
[http://dx.doi.org/10.1016/j.ijporl.2005.07.023] [PMID: 16165223]