나선형 고해상도 전산화 단층촬영 영상을 이용한 측두골의 3차원 컴퓨터 영상재건：측두골의 해부 및 임상적 응용 = Three-Dimensional Reconstruction Based on Images from Spiral High-Resolution Computed Tomography of Temporal Bone：Anatomy and Clinical Application

다국어 초록 (Multilingual Abstract)

Background and Objectives：The intricate anatomy of the temporal bone has always been dificult to visualize. In this regard, the advantages of computer-asisted reconstruction of temporal bone based on image data from computed tomography (CT) are (3D) reconstruction of computed tomography in determining the anatomy and topographic relationship of various important structures. Subjects and Method：For 40 ears of 20 patients with various otological diseases, 3D reconstruction based on image data from spiral high-resolution CT was performed by segmentation, volume-rendering and surface-rendering algorithm on a personal computer. The scanning was caried out in axial plane with technical factors of 140 kV, 100 mAs, 1 m thickness, and 1 second scanning time. A software (VworksTM ) was used for image processing. Results：We were able to demonstrate the 3D display of the midle and iner ear structures. The computer-assisted measurement of reconstructed structures demonstrated the anatomic details comprehensively, which improved the surgeons understanding of their spatial relationship, and provided many details that could not be easily measured in vivo. Conclusion：The 3D reconstruction of temporal bone CT can be useful in demonstrating ecessary to confirm the correlation betwen 3D reconstructed images and histologic sections through the validation study.

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