A method for measuring the length of the cochlea through magnetic resonance imaging

We know that hearing impairment affects a large part of the population. In cases of profound and bilateral hearing loss, children may have problems in speech development, as well as communication and socialization. Cochlear implants have been used as a treatment option in these cases. Today, inner e...

Full description

Saved in:
Bibliographic Details
Published in:Brazilian journal of otorhinolaryngology 2009-03, Vol.75 (2), p.261-267
Main Authors: Pochini Sobrinho, Fernando, Lazarini, Paulo Roberto, Yoo, Hea Jung, Abreu Júnior, Luiz de, Meira, Altino de Sá
Format: Article
Language:English
Subjects:
Aged
Aged, 80 and over
Cadaver
Cochlea - anatomy & histology
Cochlea - pathology
Female
Humans
Imaging, Three-Dimensional - methods
Magnetic Resonance Imaging - instrumentation
Magnetic Resonance Imaging - methods
Male
Middle Aged
Temporal Bone - anatomy & histology
Temporal Bone - pathology
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:We know that hearing impairment affects a large part of the population. In cases of profound and bilateral hearing loss, children may have problems in speech development, as well as communication and socialization. Cochlear implants have been used as a treatment option in these cases. Today, inner ear MRI is a mandatory test in the preoperative evaluation of these individuals. In our daily routines, we wonder whether MRI can provide not only qualitative, but also quantitative data, with real cochlear linear values built from three dimension images. The aim of the present investigation is to propose a method to obtain MRI cochlear length measures from the temporal bones of cadavers. We assessed three dimensional images from the cochlea of six cadavers. By overlapping digitalized rulers on these images it was possible to measure cochlear length. These measures varied between 17 and 26.5 millimeters. We have concluded that it was possible to measure cochlear length from three dimensional MRI images, by employing the method hereby proposed.
ISSN:1808-8694