Segmentation and Surface Reconstruction of the Detailed Ear Structures, Identified in Sectioned Images

Authors

  • Hae Gwon Jang,

    1. Multimedia and Computer Architecture Lab, Graduate School of Information and Communication, Ajou University, Worldcup-ro 206, Suwon 443-749, Republic of Korea
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  • Min Suk Chung,

    1. Department of Anatomy, Ajou University School of Medicine, Worldcup-ro 164, Suwon 443-749, Republic of Korea
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  • Dong Sun Shin,

    1. Department of Anatomy, Ajou University School of Medicine, Worldcup-ro 164, Suwon 443-749, Republic of Korea
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  • Seung Kyu Park,

    1. Multimedia and Computer Architecture Lab, Graduate School of Information and Communication, Ajou University, Worldcup-ro 206, Suwon 443-749, Republic of Korea
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  • Keun Soo Cheon,

    1. Department of Obstetrics and Gynecology, Dongguk University College of Medicine, 707 Seokjang-dong, Gyeongju 780-714, Republic of Korea
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  • Hyo Seok Park,

    1. Department of Anatomy, Dongguk University College of Medicine, 707 Seokjang-dong, Gyeongju 780-714, Republic of Korea
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  • Jin Seo Park

    Corresponding author
    1. Department of Anatomy, Dongguk University College of Medicine, 707 Seokjang-dong, Gyeongju 780-714, Republic of Korea
    • Department of Anatomy, Dongguk University College of Medicine, 707 Seokjang-dong, Gyeongju 780-714, Republic of Korea
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    • Fax: +82-54-770-2402


Abstract

The structure of the ear, which intervenes between gross anatomy and histology in size, can be best understood by means of three-dimensional (3D) surface models on a computer. Furthermore, surface models are the source of interactive simulation for clinical trials, such as tympanoplasty. The objective of this research was to elaborate the surface models of detailed ear structures, which contribute to learning anatomy or the practice of otology. We produced sectioned images of a cadaver head (pixel size, 0.1 mm; 48-bit color). In the sectioned images, the external, middle, and internal ear structures and other related components were delineated on Photoshop to acquire segmented images at 0.5-mm intervals. Segmented images of each structure were stacked, and the surface was reconstructed to generate a 3D-surface model on commercial software. Thirty surface models showed fine ear topographic anatomy (e.g., semicircular ducts), as expected. Herein, we present the corresponding sectioned images, segmented images, and surface models of ear structures that will be released together. It is hoped that these image data will stimulate the development of medical simulations. The efficient technique of segmentation and surface reconstruction enables the manufacture of surface models from other serial images (e.g., CTs and MRIs). Anat Rec, 2011. © 2011 Wiley-Liss, Inc.

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