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Growth pattern of temporal bone pneumatization: a computed tomography study with consecutive age groups.

Pengfei Zhao1, Heyu Ding1, Han Lv1

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Summary

Temporal bone pneumatization (TBP) volume grows linearly from birth until age 14. This study analyzed TBP in 570 patients using high-resolution CT scans to understand its developmental trajectory.

Keywords:
AdolescentChildEar, middleImage processing, Computer-assistedInfantTemporal boneTomography, X-ray computed

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Area of Science:

  • Radiology
  • Pediatric Imaging
  • Anatomy

Background:

  • Temporal bone pneumatization (TBP) is a crucial developmental process.
  • Understanding TBP growth is vital for diagnosing related pathologies.

Purpose of the Study:

  • To investigate the growth pattern of temporal bone pneumatization (TBP) in individuals from birth to 18 years.
  • To utilize 3D air-density reconstruction of high-resolution CT (HRCT) for precise TBP volume measurement.

Main Methods:

  • Analyzed HRCT scans of 570 patients (birth to 18 years) without structural abnormalities.
  • Created 19 age groups with 15 males and 15 females each.
  • Used 3D volume rendering with a -200 HU threshold to calculate TBP volume and performed statistical analysis.

Main Results:

  • Mean TBP volume increased from 1.17 ± 0.44 ml in infants to 6.81 ± 1.93 ml in adults.
  • High consistency in TBP volume between sides and sexes was observed in most age groups.
  • Linear growth of TBP was noted in both sexes until 14 years, with specific minor differences between sexes and sides at certain ages.

Conclusions:

  • Temporal bone pneumatization exhibits a linear growth pattern from birth until reaching adult size around 14 years.
  • The findings provide normative data for TBP development in children and adolescents.