Imaging of the windows of the temporal bone

doi:10.1016/S0887-2171(01)90011-3

Seminars in Ultrasound, CT and MRI

Volume 22, Issue 3, June 2001, Pages 271-280

https://doi.org/10.1016/S0887-2171(01)90011-3 Get rights and content

Abstract

Imaging of the window of the temporal bone has became an important tool in the analysis of hearing loss, vertigo, tinnitus in a context of trauma, malformation, otosclerosis, and chronic otitis media. A good knowledge of the anatomy and a good technical procedure are necessary for making an efficient diagnosis. The increased thickness of the footplate may be delineated in otosclerosis, chronic otitis media, malformation, when it is measured at 0.7 mm or more in horizontal computed tomography (CT) sections. The traumatic displacement of the stapes, particularly within the labyrinths, is easily diagnosed in horizontal CT section. Imaging of the round window is now very important for the detection of otosclerotic foci, congenital stenosis, and perilymphatic fistula with or without fracture. Magnetic resonance imaging (MRI) with the high-resolution T2 plays an important role in the detection of a small amount of fluid in the round window recess, confirming the traumatic perilymphatic fistula without fracture.

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There are more references available in the full text version of this article.

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L’imagerie de l’oreille et de l’os temporal est essentielle à la prise en charge diagnostique et préopératoire des lésions de l’oreille moyenne.
Le scanner est l’examen de choix pour analyser les parois et le contenu de l’oreille moyenne.
L’IRM permet de caractériser les opacités de l’oreille moyenne et d’en évaluer les complications neurologiques possibles.
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La otosclerosis es una otodistrofia primaria del hueso temporal que produce una hipoacusia de transmisión progresiva. El diagnóstico es generalmente clínico, pero en ocasiones es necesaria la realización de una tomografía computarizada multidetector (TCMD), que es la técnica de imagen de elección. El objetivo de este artículo es realizar una actualización sistemática de la utilidad de las técnicas de imagen en el diagnóstico y la valoración posquirúrgica de la otosclerosis, fundamentalmente del papel de la TCMD, con el fin de disminuir el riesgo quirúrgico.
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The scala tympani drill-out technique, which is basically fenestration at the initial part of the basal turn, provides a choice in hearing reconstruction when the OW is completely covered by abarrently coursed facial nerve.

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Imaging of the windows of the temporal bone

Abstract

Atlas of sections of the temporal bone and adjacent region

Anatomy of the temporal bone with surgical complications

Traumatismes de l'os temporal

Perilymphatic fistula: A Washington, DC, experience

Otorhinolaryngol Nova

Perilymphatic fistula: Pathophysiology, diagnosis and management

Otorhinolaryngol Nova

Histologic otosclerosis

Ann Otol Rhinol Laryngol

Histopathology of otosclerosis

Otolaryngol Clin North Am

Pathology of the ear