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Journal of Biomechanics

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1 Journal of Biomechanics
A four-dimensional computed tomography comparison of healthy and asthmatic human lungs  Nariman Jahani, Sanghun Choi, Jiwoong Choi, Babak Haghighi, Eric A. Hoffman, Alejandro P. Comellas, Joel N. Kline, Ching-Long Lin  Journal of Biomechanics  Volume 56, Pages (May 2017) DOI: /j.jbiomech Copyright © 2017 Elsevier Ltd Terms and Conditions

2 Fig. 1 Means±​standard errors (SE) of normalized airflow (Q*) measured by the turbine-based flow meter for exhalation (positive value) and inhalation (negative value) in the total lung for both asthmatic and healthy subjects. Journal of Biomechanics  , DOI: ( /j.jbiomech ) Copyright © 2017 Elsevier Ltd Terms and Conditions

3 Fig. 2 Means (+SE) of lobar air volume fraction for five non-severe asthmatics A: during exhalation and B: during inhalation, and for the severe asthmatic subject C: during exhalation and D: during inhalation. Journal of Biomechanics  , DOI: ( /j.jbiomech ) Copyright © 2017 Elsevier Ltd Terms and Conditions

4 Fig. 3 Means (±SE) of A: lobar airflow fraction (qf,SCT) in static scans, B: lobar airflow fraction (qf,4D-CT) in 4D-CT scans among healthy, non-severe asthmatic, and the severe asthmatic subjects; C: Comparison between lobar qf,SCT and qf,4D-CT for all subjects. Journal of Biomechanics  , DOI: ( /j.jbiomech ) Copyright © 2017 Elsevier Ltd Terms and Conditions

5 Fig. 4 Ventilation histogram for A: a representative healthy subject and B: a representative asthmatic subject. Journal of Biomechanics  , DOI: ( /j.jbiomech ) Copyright © 2017 Elsevier Ltd Terms and Conditions

6 Fig. 5 Means of ADI* in the total lungs for five healthy and six asthmatic subjects. Journal of Biomechanics  , DOI: ( /j.jbiomech ) Copyright © 2017 Elsevier Ltd Terms and Conditions

7 Fig. 6 Means (±SE) of lung and lobar A: non-linearity of ADI* during exhalation B: non-linearity of ADI* during inhalation, and C: hysteresis of ADI* between five healthy and six asthmatic subjects. Journal of Biomechanics  , DOI: ( /j.jbiomech ) Copyright © 2017 Elsevier Ltd Terms and Conditions


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