PMID: 16358606Dec 20, 2005Paper

Radiology of the cochlear aqueduct

The Annals of Otology, Rhinology, and Laryngology
Lela Migirov, Jona Kronenberg

Abstract

We sought to determine normative data for the radiologic presentation of the cochlear aqueduct (CA), hypothesizing that increasing the scanner's resolution could enhance detection capability. Axial sections of 502 high-resolution computed tomography (CT) images of temporal bones (488 patients) were reviewed. A type 1 CA was visualized on CT scans up to the vestibule, and its portion in the otic capsule segment could be seen as a thin (<1 mm) streak. In type 2, we were able to detect the medial two thirds of the structure, but we failed to see the whole otic capsule portion. In type 3, only the external aperture of the aqueduct and/or the medial third was seen. We defined undetectable CAs as type 4. We obtained CT scans with 0.6-, 1.1-, or 1.3-mm-thick slices through the petrous bones in 9.5%, 58.8%, and 31.7% of cases, respectively. The CA was visible and bilaterally symmetric in 49% of the images, and type 2 was the most commonly detected CA type (36%). The CA was invisible on either side in 21.9% of scans, irrespective of CT resolution, and was asymmetric in 53 of the 502 images. The CA types varied with changes in resolution, although type 3 appeared unchanged independent of alterations in resolution in most cases. There was...Continue Reading

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Citations

Jul 16, 2014·European Archives of Oto-rhino-laryngology : Official Journal of the European Federation of Oto-Rhino-Laryngological Societies (EUFOS) : Affiliated with the German Society for Oto-Rhino-Laryngology - Head and Neck Surgery·Jonas J-H ParkMartin Westhofen
Feb 23, 2011·European Archives of Oto-rhino-laryngology : Official Journal of the European Federation of Oto-Rhino-Laryngological Societies (EUFOS) : Affiliated with the German Society for Oto-Rhino-Laryngology - Head and Neck Surgery·Herbert Stimmer
Mar 3, 2009·Otolaryngology--head and Neck Surgery : Official Journal of American Academy of Otolaryngology-Head and Neck Surgery·Lela Migirov, Jona Kronenberg
Apr 12, 2019·The Annals of Otology, Rhinology, and Laryngology·Helena WichovaJames Lin
Nov 16, 2013·Otology & Neurotology : Official Publication of the American Otological Society, American Neurotology Society [and] European Academy of Otology and Neurotology·Bo Gyung KimJae Young Choi
Jul 28, 2019·Otology & Neurotology : Official Publication of the American Otological Society, American Neurotology Society [and] European Academy of Otology and Neurotology·Yona VaisbuchPeter L Santa Maria
Dec 7, 2019·Clinical Neuroradiology·John C BensonJohn I Lane
Apr 24, 2018·Surgical and Radiologic Anatomy : SRA·Zhenghua LiAnzhou Tang
Sep 25, 2020·Cochlear Implants International·C Xie, R Harris
Dec 5, 2020·Otology & Neurotology : Official Publication of the American Otological Society, American Neurotology Society [and] European Academy of Otology and Neurotology·Giulia MolinariLukas Anschuetz
Oct 29, 2020·Surgical and Radiologic Anatomy : SRA·Bulent SatarSalih Cengiz Meral

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