الفهرس 
IntroductionOnly 14 pages are availabe for public view
 |  | from | 120 |  |  |
| | | from | 120 | | |
Abstract
Child sensorineural hearing loss may have several underlying congenital causes, including cochlear nerve canal stenosis. When sensorineural hearing loss progresses to its terminal stage, total deafness may follow.
Imaging techniques like MRI and CT are increasingly used in fields like medicine, diagnostics, and even audiology. Temporal bone CT provides great characterization of osseous structures, whereas MRI provides excellent portrayal of soft tissue components.
The BCNC extends from the inner auditory canal (IAC) fundus to the cochlear apex. The BCNC protects the fibres that go from the spiral ganglion to the cochlear nerve.
As a result, limited bony CNC space is an indicator of either functional or structural cochlear nerve insufficiency. To be more specific, the cochlear nerve may be aberrant if the BCNC width is less than 1.4 mm in the axial plane.
In children with hypoplastic or absent cochlear nerves [CNs] on MRI, we compare the BCNC’s existence and size on CT.
According to experts, the CNC is a reliable indicator of CN malformation. Furthermore, CNC anomalies might be seen as a subset of the more common cochlear malformations. Because of this, measuring CNC diameters may help characterise CN aplasia or hypoplasia.
Patients may suffer severe hearing loss if the BCNC is not present. We also demonstrated a strong predilection for the correlation between the BCNC’s diameter and the dB level of hearing loss. As a result, if you want to go into the cochlear nerve using an MRI, an axial CT is the way to go.
Ninety percent of the healthy population has a CN wider than the inferior or superior vestibular nerve branches. In addition, in 65% of cases it is higher than the FN.
With the use of oblique sagittal reconstruction of the IAM, the researchers were able to identify cases of CN hypoplasia, defined here as a CN smaller in diameter than the FN. When the CN was not present, aplasia was found.
Second, our research confirmed that noticeably constricted CNCs are often associated with CN aplasia or hypoplasia, and that people with normal hearing are more likely to have broader CNCs than those with SNHL.