2002•Korean Journal of Otorhinolaryngology - Head and Neck SurgeryRequires access
Computed Tomographic Measurements of the External Auditory Canal and the Temporal Bone
Gyo-Jun Gu, Ui-Gyeong Go, Jun-Ho Yun, Chang-Heon Lee, Su-Gwon Gu, Sang-Hwa Lee, Gyeong-Myeong Jeon
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Abstract
High-resolution computed tomography provides an excellent method for examination of the middle ear, inner ear anatomy and pathologic changes in the temporal bones. The purpose of this study was to get various measurements of the external auditory canal and temporal bones, and to compare the changes with age and sex. Materials and Method：The various measurements by CT of the external ear canal of normal 50 ears were done. Results：The obtained results were as follows；1) In both male and female group, the distance from the medial end of EAC to bony-cartilage junction, the distance from medial end of EAC to the lateral end of cartilage, the distance from the superior wall to the inferior wall (coronal EAC isthmus) and the distance from anterior wall to the posterior wall (axial EAC isthmus) increased significantly with age (p