Kim H, et al. - In children with bilateral sensorineural hearing loss (b-SNHL), researchers assessed the clinical utility of the bony cochlear nerve canal (BCNC) and internal auditory canal (IAC). They also focused on the correlation between these parameters and outcomes following cochlear implantation (CI). In addition to 94 ears with b-SNHL that received CI, they examined 100 ears with normal hearing. They analyzed parameters of IAC as well as pre- and post-CI categories of auditory performance scores. Children with b-SNHL had narrower BCNC and IAC, as compared to normal-hearing children. Post-CI results were negatively influenced by narrow BCNC and IAC width. With 90% sensitivity, 2.055 mm and 4.245 mm were the estimated cutoff values for BCNC and IAC width, in the BCNC and in the IAC, respectively. In the prediction of auditory outcome following CI, the proposed cutoff values for BCNC and IAC width were meaningful, particularly considering both.