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Evaluation of temporal bone pneumatization with growth using 3D reconstructed image of computed tomography

  • Sun Wha Song
    Affiliations
    Department of Radiology, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
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  • Beom Cho Jun
    Correspondence
    Corresponding author at: Department of Otolaryngology-Head and Neck Surgery, The Catholic University of Korea, Uijeongbu St. Mary's Hospital, #65-1 Geumo-Dong, Uijeongbu City, Gyeonggi-Do 480-717, Republic of Korea. Fax: +82 31 847 0038.
    Affiliations
    Department of Otolaryngology-Head and Neck Surgery, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
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  • Hojong Kim
    Affiliations
    Department of Otolaryngology-Head and Neck Surgery, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
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  • Yesun Cho
    Affiliations
    Department of Otolaryngology-Head and Neck Surgery, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
    Search for articles by this author
Published:December 16, 2016DOI:https://doi.org/10.1016/j.anl.2016.11.006

      Abstract

      Objective

      To evaluate temporal bone pneumatization with growth using 3D reconstructed computed tomography (CT) images.

      Patients and Methods

      Eighty-four temporal bones of 42 patients under the age of 16 years who had undergone head and facial bone CT were included in this retrospective study. The bony growth of the temporal bone and the head size were evaluated with horizontal- and vertical-plane CT images. Pneumatization of the temporal bone was investigated with 3D reconstruction software using axial CT images, dividing them as follows: medially, anterosuperiorly, posterolaterally, and inferiorly. Pneumatization of each individual part was compared with that of other parts and was also evaluated according to the aging process.

      Results

      The mean pneumatization was measured as 1696.7 mm3 in patients aged under 2 years, 3609.1 mm3 in those aged 2–4 years, 5351.1 mm3 in those aged 5–7 years, 7295.9 mm3 in those aged 8–10 years, 7797.5 mm3 in those aged 11–13 years, and 8526.6 mm3 in those aged 14–16 years. The degree of temporal bone pneumatization of each part was correlated with that of other parts (p < 0.05). The volume of pneumatization increased with growth of the temporal bone and with aging. The degree of pneumatization of specific parts might be related to developmental periods.

      Conclusion

      The pneumatization of one part might affect the pneumatization of other nearby parts, or all parts might be affected by the same driving force of pneumatization.

      Keywords

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