A novel method to measure the external auditory canal: Normative data and practical implications

This study demonstrates that CT analysis can provide more information about EAC dimensions than traditional techniques. Moreover, slight but statistically significant differences are associated with age, gender and laterality. Accurate estimation of EAC dimensions is important for the development of hearing aids and personal protective equipment and can also be helpful for surgical planning, specifically otoendoscopy. Future research will focus on simplifying computation, developing cross-cultural cohort comparisons, and application to otoendoscopic procedures.