A novel method of identifying inner ear malformation types by pattern recognition in the mid modiolar section.

Autor: Dhanasingh A; Research and Development Department, MED-EL Medical Electronics, Fürstenweg77a, 6020, Innsbruck, Austria. Anandhan.dhanasingh@medel.com.; Department of Translational Neurosciences, Faculty of Medicine and Health Sciences, University of Antwerp, Antwerp, Belgium. Anandhan.dhanasingh@medel.com., Erpenbeck D; ARTORG Center for Biomedical Engineering Research, University of Bern, Bern, Switzerland., Assadi MZ; Research and Development Department, MED-EL Medical Electronics, Fürstenweg77a, 6020, Innsbruck, Austria., Doyle Ú; Research and Development Department, MED-EL Medical Electronics, Fürstenweg77a, 6020, Innsbruck, Austria., Roland P; Department of Otolaryngology, University of Texas Southwestern Medical Center, Dallas, USA., Hagr A; King Abdullah Ear Specialist Center (KAESC), King Saud University, Riyadh, Saudi Arabia., Van Rompaey V; Department of Translational Neurosciences, Faculty of Medicine and Health Sciences, University of Antwerp, Antwerp, Belgium.; Department of Otorhinolaryngology and Head and Neck Surgery, Antwerp University Hospital, Antwerp, Belgium., Van de Heyning P; Department of Translational Neurosciences, Faculty of Medicine and Health Sciences, University of Antwerp, Antwerp, Belgium.; Department of Otorhinolaryngology and Head and Neck Surgery, Antwerp University Hospital, Antwerp, Belgium.
Jazyk: angličtina
Zdroj: Scientific reports [Sci Rep] 2021 Oct 21; Vol. 11 (1), pp. 20868. Date of Electronic Publication: 2021 Oct 21.
DOI: 10.1038/s41598-021-00330-6
Abstrakt: Identification of the inner ear malformation types from radiographs is a complex process. We hypothesize that each inner ear anatomical type has a uniqueness in its appearance in radiographs. The outer contour of the inner ear was captured from the mid-modiolar section, perpendicular to the oblique-coronal plane, from which the A-value was determined from CT scans with different inner ear anatomical types. The mean A-value of normal anatomy (NA) and enlarged vestibular aqueduct syndrome (EVAS) anatomical types was greater than for Incomplete Partition (IP) type I, II, III and cochlear hypoplasia. The outer contour of the cochlear portion within the mid-modiolar section of NA and EVAS resembles the side view of Aladdin's lamp; IP type I resembles the side-view of the Sphinx pyramid and type II a Pomeranian dog's face. The steep spiraling cochlear turns of IP type III resemble an Auger screw tip. Drawing a line parallel to the posterior margin of internal auditory canal (IAC) in axial-view, bisecting the cavity into cochlear and vestibular portions, identifies common-cavity; whereas a cavity that falls under the straight-line leaving no cochlear portion identifies cochlear aplasia. An atlas of the outer contour of seventy-eight inner ears was created for the identification of the inner malformation types precisely.
(© 2021. The Author(s).)
Databáze: MEDLINE
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