Normative data for trachea and main bronchi dimensions on computed tomography in children and adolescents

Aim: To determine the reference values for trachea and main bronchi dimensions in children and adolescents using CT and toevaluate correlations with age and sex.Material and Methods: This retrospective study evaluated 150 cases (75 males, 75 females) with the median age of 9 (6-14) years.Cases were divided into three groups according to age of 4-7 years (n=50, preschool), 8-12 years (n=50, school), and 13-17 years(n=50, adolescent). The dimensions of trachea segments (proximal, middle, distal parts), and right and left bronchi were measuredon coronal CT images. Comparisons were made between age groups and sex in terms of these variables.Results: The proximal, middle and distal sections of the trachea had median dimensions of 0.91 (0.79-1.08)cm, 1.08 (0.96-1.22)cm and 1.17 (1.06-1.32)cm, respectively. The order from statistically largest to smallest was distal, middle and proximal levels(p

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1. Champs NS, Lasmar LM, Camargos PA, et al. Postinfectious bronchiolitis obliterans in children. J Pediatr (Rio J) 2011;87:187-98.
2. Diaz AA, Hardin ME, Come CE, et al. Childhood-onset asthma in smokers. association between CT measures of airway size, lung function, and chronic airflow obstruction. Ann Am Thorac Soc 2014;11:1371-8.
3. Lam WW, Tam PK, Chan F, et al. Esophageal atresia and tracheal stenosis. AJR 2000;174:1009-12.
4. Messineo A, Filler RM. Tracheomalacia. Semin Pediatr Surg 1994;3:253-8.
5. Desir A, Ghaye B. Congenital abnormalities of intrathoracic airways. Radiol Clin North Am 2009;47:203-25.
6. Siegel MJ. Multiplanar and three-dimensional multidetector row CT of thoracic vessels and airways in the pediatric population. Radiology 2003;229:641- 50.
7. Heyer CM, Nuesslein TG, Jung D, et al. Tracheobronchial anomalies and stenoses: detection with low-dose multidetector CT with virtual tracheobronchoscopy– comparison with flexible tracheobronchoscopy. Radiology 2007;242:542-9.
8. Liszewski MC, Ciet P, Lee EY. MR Imaging of Lungs and Airways in Children: Past and Present. Magn Reson Imaging Clin N Am 2019;27:201-25.
9. Rana P, Sodhi KS, Bhatia A, et al. Diagnostic accuracy of 3-T lung magnetic resonance imaging in human immunodefiiency virus-positive children. Pediatr Radiol 2020;50:38-45.
10. Kotecha S. Lung growth for beginners. Paediatr Respir Rev 2000;1:308-13.
11. Fayoux P, Devisme L, Merrot O, et al. Determination of endotracheal tube size in a perinatal population: an anatomical and experimental study. Anesthesiology 2006;104:954-60.
12. Kuo W, Ciet P, Andrinopoulou ER, et al. Reference Values for Central Airway Dimensions on CT Images of Children and Adolescents. AJR Am J Roentgenol 2018;210:423-30.
13. Kim IS and Song CH. The Morphometric Study of Main Bronchus in Korean Cadaver. Korean J Phys Anthropol 2017;30:7-14.
14. Rao L, Tiller C, Coates C, et al. Lung growth in infants and toddlers assessed by multi-slice computed tomography. Acad Radiol 2010;17:1128-35.
15. Li H, Lu X, Shi J, et al. Measurements of normal upper airway assessed by 3-dimensional computed tomography in Chinese children and adolescents. Int J Pediatr Otorhinolaryngol 2011;75:1240-6.
16. Griscom NT, Wohl ME. Dimensions of the growing trachea related to age and gender. AJR 1986;146:233- 7.
17. Seo JH, Hwang SH, Kang JM, et al. Age-related changes of the larynx and trachea assessed by three-dimensional computed tomography in children: application to endotracheal intubation and bronchoscopy. Clin Anat 2014;27:360-4.
18. Herek D, Herek O, Ufuk F. Tracheobronchial Angle Measurements in Children: An Anthropometric Retrospective Study With Multislice Computed Tomography. Clin Exp Otorhinolaryngol 2017;10:188- 192.
19. Chunder R, Guha R. A morphometric study of human subcarinal angle in different age groups in both sexes and its clinical implications. Indian J Basic Appl Med Res 2015;4:424-30.
20. Rosen CL, Larkin EK, Kirchner HL, et al. Prevalence and risk factors for sleep-disordered breathing in 8- to 11-year-old children: association with race and prematurity. J Pediatr 2003;142:383-9.