Quantitative imaging analysis of transcanal endoscopic Infracochlear approach to the internal auditory canal

Authors

Judith S. Kempfle, Department of Otolaryngology, Massachusetts Eye and Ear Infirmary, 243 Charles St, Boston, MA, USA; Department of Otology and Laryngology, Harvard Medical School, Boston, MA, USA; Department of Otolaryngology, University Tübingen Medical Center, Elfriede-Aulhorn-Str. 5, 72076 Tübingen, Germany. Electronic address: Judith_kempfle@meei.harvard.edu.
Benjamin Fiorillo, Department of Otolaryngology, Massachusetts Eye and Ear Infirmary, 243 Charles St, Boston, MA, USA; Tufts University School of Medicine, Boston, MA, USA.
Vivek V. Kanumuri, Department of Otolaryngology, Massachusetts Eye and Ear Infirmary, 243 Charles St, Boston, MA, USA; Department of Otology and Laryngology, Harvard Medical School, Boston, MA, USA.
Samuel Barber, Department of Otolaryngology, Massachusetts Eye and Ear Infirmary, 243 Charles St, Boston, MA, USA; Tufts University School of Medicine, Boston, MA, USA.
Albert S. Edge, Department of Otolaryngology, Massachusetts Eye and Ear Infirmary, 243 Charles St, Boston, MA, USA; Department of Otology and Laryngology, Harvard Medical School, Boston, MA, USA.
Marybeth Cunnane, Department of Otolaryngology, Massachusetts Eye and Ear Infirmary, 243 Charles St, Boston, MA, USA; Department of Otology and Laryngology, Harvard Medical School, Boston, MA, USA.
Aaron K. Remenschneider, Department of Otolaryngology, Massachusetts Eye and Ear Infirmary, 243 Charles St, Boston, MA, USA; Department of Otolaryngology, UMass Memorial Medical Center, 55 Lake Avenue North, Worcester, MA 01655, USA.
Daniel J. Lee, Department of Otolaryngology, Massachusetts Eye and Ear Infirmary, 243 Charles St, Boston, MA, USA; Department of Otology and Laryngology, Harvard Medical School, Boston, MA, USA.
Elliott D. Kozin, Department of Otolaryngology, Massachusetts Eye and Ear Infirmary, 243 Charles St, Boston, MA, USA; Department of Otology and Laryngology, Harvard Medical School, Boston, MA, USA.

Document Type

Article

Abstract

PURPOSE: A transcanal endoscopic infracochlear surgical approach to the internal auditory canal (IAC) in a human temporal bone model has previously been described. However, the proportion of patients with favorable anatomy for this novel surgical technique remains unknown. Herein, we perform a quantitative analysis of the transcanal endoscopic infracochlear corridor to the IAC based on computed tomography. MATERIALS AND METHODS: High resolution computed tomography scans of adult temporal bones were measured to determine the accessibility of the IAC when using an endoscopic transcanal, cochlear-sparing surgical corridor. RESULTS: This approach to the IAC was feasible in 92% (35 of 38) specimens based on a minimum distance of 3mm between the basilar turn of the cochlear and the great vessels (jugular bulb and carotid artery). CONCLUSIONS: Infracochlear access to the IAC is feasible in the majority of adult temporal bones and has implications for future hearing preservation drug delivery approaches to the IAC.

Medical Subject Headings

Adult; Ear, Inner (diagnostic imaging, surgery); Endoscopy; Humans; Neuroma, Acoustic (diagnostic imaging, surgery); Patient Selection; Temporal Bone (diagnostic imaging); Tomography, X-Ray Computed

Publication Date

1-1-2017

Publication Title

American journal of otolaryngology

E-ISSN

1532-818X

Volume

38

Issue

5

First Page

518

Last Page

520

PubMed ID

28687426

Digital Object Identifier (DOI)

10.1016/j.amjoto.2017.03.014

Recommended Citation

Kempfle, Judith S.; Fiorillo, Benjamin; Kanumuri, Vivek V.; Barber, Samuel; Edge, Albert S.; Cunnane, Marybeth; Remenschneider, Aaron K.; Lee, Daniel J.; and Kozin, Elliott D., "Quantitative imaging analysis of transcanal endoscopic Infracochlear approach to the internal auditory canal" (2017). ENT and Skull Base Surgery. 75.
https://scholar.barrowneuro.org/ent-and-skull-base-surgery/75