Three-Dimensional Reconstruction of the Semicircular Canals with a Two-Hands Model

Özet

Objective: To help understand the anatomy and thediseases of the semicircular canals (SCCs) by defining the three-dimensional reconstruction of theSCCs in a model reconstructed using the two hands(two-hands model) and to determine the three-dimensional configuration of the two hands by measuring the angle between the SCCs and the sagittalplane.Methods: Patients older than 18 years of age withcomputed tomography (CT) scans of the temporalbones taken between 2017 and 2018 at the YeditepeUniversity Hospital were included in the study. CTimages were evaluated by a radiologist. The anglesbetween every SCC and the sagittal plane were measured with the MIMICS 12.1 program. Mean anglesbetween the SCCs and the sagittal plane were measured. These angles were demonstrated on the twohands model of the SCCs by means of a goniometerand photographed.Results: Thirty patients and 60 temporal bones wereincluded in the study. Mean angles between the superior, the posterior, and the horizontal SCCs andthe sagittal plane were found as 37.1±3.3°, 50.4±4.1°,and 89.5±4.7°, respectively.Conclusion: This is the first study to define thethree-dimensional representation of the SCCs witha two-hands model. This may allow for a better understanding and the better teaching of the anatomyand diseases of SCCs.