Human cochlear aqueduct and its accessory canals

The Annals of Otology, Rhinology & Laryngology. Supplement
H Rask-AndersenH Wilbrand

Abstract

The anatomy of the adult human cochlear aqueduct and its surrounding structures, and their normal variations at tomography, microdissection and plastic molding are described. The mean length of the aqueduct is 12.9 mm and the mean width of its funnel-shaped external aperture 4.2 mm. The mean width of the narrowest portion is 0.14 mm. No difference in aqueductal width was found between the youngest and oldest age groups. Complete bony obstruction was revealed at microdissection in 3 out of 82 specimens. In the remaining 79 the entire aqueduct was patent. The aqueduct usually runs parallel to the internal auditory canal when seen from above, and the AP projection is therefore most suitable for tomography. At tomography the entire aqueduct was visualized in 60% of the specimens. The isthmic portion was not visible in 40%. Major reasons for nonvisualization of the entire aqueduct are: 1) a luminal width less than 0.1 mm, 2) a high jugular fossa, 3) a posteriorly directed aqueductal convexity (10%), and 4) bony obliteration (4)%). Accessory canals close to and often wider than the aqueduct may complicate tomographic evaluation of the aqueductal patency. Nonvisualization of the aqueduct at tomography does not necessarily indicate non...Continue Reading

References

Jan 1, 1977·Archives of Otolaryngology·I K ArenbergJ Stahle
Jan 1, 1976·ORL; Journal for Oto-rhino-laryngology and Its Related Specialties·B Kellerhals
Apr 1, 1973·The Laryngoscope·H SilversteinA Belal
Nov 1, 1974·Acta Radiologica: Diagnosis·A Hemmingsson, P G Lindgren
Jan 1, 1974·Acta Oto-laryngologica·R S KimuraC Y Ota
Aug 1, 1973·Archives of Otolaryngology·S DorphA Oigaard
Nov 1, 1973·Acta Oto-laryngologica·T PalvaR Nousiainen
Aug 1, 1970·Acta Oto-laryngologica·T Palva
Apr 1, 1971·The Annals of Otology, Rhinology, and Laryngology·W E SesanaE Torres Reyes
Apr 1, 1968·The Journal of Laryngology and Otology·H B Holden, H F Schuknecht
Oct 1, 1969·Archives of Otolaryngology·R Gussen
Sep 1, 1952·The Annals of Otology, Rhinology, and Laryngology·J R LINDSAYR S KIMURA
Sep 1, 1963·The Annals of Otology, Rhinology, and Laryngology·H F SCHUKNECHT, A E SEIFI

❮ Previous
Next ❯

Citations

Dec 11, 1991·The Laryngoscope·S BhattJ B Nadol
Nov 1, 1986·Acta Oto-laryngologica·B DensertH Sheppard
Sep 1, 1986·Acta Oto-laryngologica·B DensertH Sheppard
Mar 1, 1983·Acta Oto-laryngologica·T Imoto, J Stahle
May 1, 1984·Acta Oto-laryngologica·R S Kimura, L B Maynard
Feb 1, 1981·The Journal of Laryngology and Otology·R F Gray, R P Barton
Jul 1, 1993·Otolaryngology--head and Neck Surgery : Official Journal of American Academy of Otolaryngology-Head and Neck Surgery·R K Jackler, P H Hwang
Jan 1, 1994·Acta Oto-laryngologica·K S KonrádssonB I Carlborg
Jan 1, 1997·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·E BachorC S Karmody
Oct 4, 2008·Otology & Neurotology : Official Publication of the American Otological Society, American Neurotology Society [and] European Academy of Otology and Neurotology·Elsa ErixonHelge Rask-Andersen
Aug 19, 2015·Neurosurgical Review·David Satzer, Daniel J Guillaume
Nov 9, 2017·Ear and Hearing·Nadine Schart-MorénHao Li
Sep 9, 2018·The Laryngoscope·Brandon IsaacsonDaniel E Killeen
Aug 10, 2002·Otology & Neurotology : Official Publication of the American Otological Society, American Neurotology Society [and] European Academy of Otology and Neurotology·P M RichP D Phelps
Mar 6, 2004·The Journal of the Acoustical Society of America·Stefan StenfeltRichard L Goode
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
Oct 10, 2012·The Anatomical Record : Advances in Integrative Anatomy and Evolutionary Biology·Helge Rask-AndersenRudolf Glueckert
May 26, 2018·Otology & Neurotology : Official Publication of the American Otological Society, American Neurotology Society [and] European Academy of Otology and Neurotology·Francesca AtturoHao Li
May 29, 2019·Otology & Neurotology : Official Publication of the American Otological Society, American Neurotology Society [and] European Academy of Otology and Neurotology·Sara EnghagSumit Agrawal
Sep 25, 2020·Cochlear Implants International·C Xie, R Harris
Oct 1, 1993·Clinical Otolaryngology and Allied Sciences·P D Phelps
Apr 29, 1998·Otolaryngology--head and Neck Surgery : Official Journal of American Academy of Otolaryngology-Head and Neck Surgery·A AslanM Sanna
Aug 4, 2011·Cochlear Implants International·Helge Rask-AndersenWei Liu
Sep 24, 2013·Acta Oto-laryngologica·Elsa Erixon, Helge Rask-Andersen
Mar 3, 2009·Otolaryngology--head and Neck Surgery : Official Journal of American Academy of Otolaryngology-Head and Neck Surgery·Lela Migirov, Jona Kronenberg
Sep 8, 2006·Ear and Hearing·Helge Rask-AndersenRudolf Glueckert
Feb 27, 2014·Otology & Neurotology : Official Publication of the American Otological Society, American Neurotology Society [and] European Academy of Otology and Neurotology·Martin Nue MøllerPer Caye-Thomasen
Sep 16, 2016·Otology & Neurotology : Official Publication of the American Otological Society, American Neurotology Society [and] European Academy of Otology and Neurotology·Charlotta Kämpfe NordströmHelge Rask-Andersen
Apr 8, 1999·Journal of Neurosurgery·S J Stoeckli, A Böhmer
May 6, 2006·Cephalalgia : an International Journal of Headache·S J ChungM C Lee
Apr 24, 2018·Surgical and Radiologic Anatomy : SRA·Zhenghua LiAnzhou Tang
Jan 1, 1994·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·R ToriyaT Uemura
Feb 24, 2015·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·Rui GuoHelge Rask-Andersen
Feb 6, 2018·Otolaryngologic Clinics of North America·Helge Rask-AndersenHao Li
Apr 27, 2021·Frontiers in Neurology·Hao LiSumit Agrawal
May 6, 2021·Morphologie : Bulletin De L'Association Des Anatomistes·S SrivatsavaS Rabi
Jan 1, 1986·Acta Radiologica: Diagnosis·C Muren, H Wilbrand
Jul 1, 1983·American Journal of Otolaryngology·B I Carlborg, J C Farmer
Nov 17, 2021·Vestnik otorinolaringologii·I V KostevichS B Sugarova

❮ Previous
Next ❯

Related Concepts

Related Feeds

CSF & Lymphatic System

This feed focuses on Cerebral Spinal Fluid (CSF) and the lymphatic system. Discover the latest papers using imaging techniques to track CSF outflow into the lymphatic system in animal models.