3D FE Model Reconstruction and Numerical Simulation of Airflow in Human Upper Airway for the Healthy Person and Patient with OSAHS
Based on the data which came from the spiral Computerized Tomography (CT) images of the healthy person and patient with Obstructive Sleep Apnea-Hypopnea Syndrome (OSAHS), the three-dimensional models of upper airway cavity were reconstructed by the method of surface rendering. The reconstruction threedimensional models precisely preserve original configuration of upper airways, and the airflow of the whole cavity is simulated numerically and analyzed by the finite element method. The results of the pressure and velocity distributions in the airflow field are quantitatively determined. Pressure gradients of airway are lower in the healthy person, the airflow distribution is quite uniform with free breath, and however, the patient with OSAHS remarkably escalates both the pressure and velocity of the upper airway. The present study is useful the quantitative mutual relationship between configuration and function in the upper airway, pathogenesis and diagnosing the diseases related to the anatomical structure and the function of upper airway.
upper airway three-dimensional finite element reconstruction computational fluid dynamics OSAHS
Chi Yu Gang Wang Yingxi Liu Xiuzhen Sun
Dalian University Synthesis Study Center,Dalian,116623,China Dalian University Civil and architectural engineering college Dalian,116623,China Dalian University of Technology Department of Engineering Mechanics Second Affiliated Hospital of Dalian Medical University ENT.Department Dalian,Liaoning,116027,China
国际会议
北京
英文
1-4
2009-06-11（万方平台首次上网日期，不代表论文的发表时间）