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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Article info
Publication history
Published online: December 16, 2016
Accepted:
November 1,
2016
Received:
September 2,
2016
Identification
Copyright
© 2016 Elsevier Ireland Ltd. All rights reserved.
