![]() ![]() the vestibular aqueducts are not or barely visible on high-resolution MRI. This has been associated with audiological, vestibular, and facial symptoms due to vascular compression 1. PMID: 23197140 Abstract Background: A narrow internal auditory canal (IAC) is significantly associated with congenital sensorineural hearing loss. (b) In the internal auditory meatus, the vestibulocochlear nerve divides into. Identification and characterization of these abnormalities will be crucial for the proper management of patients.We report two cases of bilateral duplicated internal auditory canal with other associated inner ear anomalies. Anterior inferior cerebellar artery loop or AICA loop refers to an aberrant course of the anterior inferior cerebellar artery (AICA) that enters the internal auditory meatus and loops over the 7 th and 8 th cranial nerves. A narrow internal auditory canal (IAC) with duplication is a very rare congenital anomaly that can be associated with other malformative ear abnormalities. Inner ear malformations account for only 20 % of cases of congenital sensorineural hearing loss. MRI Internal Auditory Canal With and Without Contrast (Gadolinium) The MRI will be performed on one of our high-strength GE 1.5/3. This is a large nerve that conducts hearing and balance signals from. ![]() Magnetic resonance imaging (MRI),Internal auditory canal (IAC),Duplicated internal auditory canal (DIAC), Vestibulo cochlear nerve (VCN),Cochlear nerve (CN), Sensorineural hearing loss (SNHL) Abstract The Internal Auditory Canal contains the 8th cranial nerve (among other structures). To evaluate interobserver agreement regarding the grading of the vascular loops, we separated the data by sidedness and considered the Chavda classification concordant if at least two of the three evaluators were in agreement. Assistant Professor, Department Of Radiology, Civil Hospital, Ahmedabad, Gujarat, Indiaģrd Year Resident,Department Of Radiology, Civil Hospital, Ahmedabad, Gujarat, IndiaĢnd Year Resident, Department Of Radiology, Civil Hospital, Ahmedabad, Gujarat, India The vessel occupies more than 50 of the canal of the internal auditory meatus, reaching its basal portion (arrows). ![]()
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