Translated Titles

The Pneumatization of Taiwanese Non-adult Temporal Bones




陳建志(Jiann-Jy Chen);鄒永恩(Yung-An Tsou);張馨丰(Hsin-Feng Chang);陳登郎(Dem-Lion Chen)

Key Words

顳骨 ; 氣房發育 ; 腦部電腦斷層 ; 青春期 ; 乳突竇 ; temporal bone ; air cellularity ; brain CT ; adolescent ; mastoid antrum



Volume or Term/Year and Month of Publication

49卷4期(2014 / 12 / 01)

Page #

197 - 203

Content Language


Chinese Abstract


English Abstract

BACKGROUND: To investigate the prevalence of otitis media and its complication, it is necessary to understand the air cellularity of temporal bone. In this study, we survey brain computed tomographies and try to understand the air cellularity of temporal bone in Taiwanese non-adults. METHODS: Between August 2013 and February 2014, 546 non-adult persons (< 20 years old), including 327 men and 219 women, received brain computed tomographies at a medical center in Mid-Taiwan. We reviewed each axial and coronal section under bone windows (center 400 HU, width 2,000 HU). RESULTS: The temporal bone has only mastoid antrum rather than any air cellularity at 0-6 months old. The earliest air cellular development around the mastoid antrum was noted at 7 months. The earliest air cellular development in the squamous or mastoid part was noted at 13 months; and, in the petrous apex, at 20 months. Temporal bone with fully-developed air cellularity could be noted as early as 6 years old. Before 3 years old, there are significant correlations and regressions between air cellularity and months of life; however, after 4 years old, there is a significant correlation rather than a significant regression between air cellularity and years of life. CONCLUSIONS: In general, the development of air cellularity of temporal bone tends to be symmetrical bilaterally. We hope the above results provide a thorough understand of the air cell cellularity development and a useful survey of the epidemiology of otits media and its complication.

Topic Category 醫藥衛生 > 外科