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Quantitative CT and pulmonary function in children with post-infectious bronchiolitis obliterans

 Jonghyeon Kim  ;  Myung-Joon Kim  ;  In Suk Sol  ;  Myung Hyun Sohn  ;  Haesung Yoon  ;  Hyun Joo Shin  ;  Kyung Won Kim  ;  Mi-Jung Lee 
 PLOS ONE, Vol.14(4) : e0214647, 2019 
Journal Title
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OBJECTIVE: To investigate the feasibility of CT-based quantitative airway and air-trapping measurements and to assess their correlation with pulmonary function in children with post-infectious bronchiolitis obliterans (PIBO). MATERIALS AND METHODS: This retrospective study approved by the institutional review board included chest CT scans and pulmonary function tests (PFT) completed between January 2005 and December 2016 in children diagnosed with PIBO. The quantitative analysis of segmental and subsegmental bronchi was performed on each chest CT scan, measuring the areas or diameters of lumens, walls, or the entire airway. The air-trapping volume (ATV), the volume of lung area exhibiting lower attenuation than the mean attenuation of normal and air-trapping areas, was also measured in each lobe. Comparison analyses between CT parameters and PFT results were performed with Pearson or Spearman correlation. RESULTS: In total, 23 patients were enrolled (mean age 7.0 ± 3.3 years; range, 4-15 years). We successfully measured 89.6% of all segmental bronchi. In the airway analysis, wall area showed a negative correlation with forced expiratory volume in one second (FEV1) in the majority of the pulmonary lobes. Air-trapping analyses demonstrated that ATV was negatively correlated with FEV1 and positively correlated with reactance at 5 Hz. CONCLUSION: Quantitative airway and air-trapping measurements from chest CT are feasible and correlate with pulmonary function in pediatric PIBO patients.
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1. College of Medicine (의과대학) > Dept. of Pediatrics (소아청소년과학교실) > 1. Journal Papers
1. College of Medicine (의과대학) > Dept. of Radiology (영상의학교실) > 1. Journal Papers
Yonsei Authors
Kim, Kyung Won(김경원) ORCID logo https://orcid.org/0000-0003-4529-6135
Kim, Myung Joon(김명준) ORCID logo https://orcid.org/0000-0002-4608-0275
Sol, In Suk(설인숙) ORCID logo https://orcid.org/0000-0003-2470-9682
Sohn, Myung Hyun(손명현) ORCID logo https://orcid.org/0000-0002-2478-487X
Shin, Hyun Joo(신현주) ORCID logo https://orcid.org/0000-0002-7462-2609
Yoon, Haesung(윤혜성) ORCID logo https://orcid.org/0000-0003-0581-8656
Lee, Mi-Jung(이미정) ORCID logo https://orcid.org/0000-0003-3244-9171
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