Numerical simulation of airway closure in dependent regions of lower respiratory tract in acute respiratory distress syndrome patients / 中国医学影像技术
Chinese Journal of Medical Imaging Technology
;
(12): 1722-1726, 2019.
Artigo
em Chinês
| WPRIM
| ID: wpr-861183
ABSTRACT
In order to study the changes of airflow characteristics in dependent regions of lower respiratory tract in patients with acute respiratory distress syndrome (ARDS), a three-dimensional model of human lower respiratory tract was established based on CT images, and the positions of airway closure in dependent regions were selected. The transient airflow in lower respiratory tract was numerically simulated based on computational fluid dynamics (CFD) technology. The variation trends of airflow velocity, surface pressure and wall shear stress in lower respiratory tract after partial airway closure were obtained. The pathophysiological changes in the development of ARDS were understood, which could guide the strategy of mechanical ventilation and avoid the occurrence of ventilator-associated lung injury.
Texto completo:
DisponíveL
Índice:
WPRIM (Pacífico Ocidental)
Tipo de estudo:
Estudo prognóstico
Idioma:
Chinês
Revista:
Chinese Journal of Medical Imaging Technology
Ano de publicação:
2019
Tipo de documento:
Artigo
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