Division of Chest Medicine, Department of Internal Medicine, China Medical University Hospital, Taichung, 40402, Taiwan.
Exp Hematol Oncol. 2012 Aug 27;1(1):23. doi: 10.1186/2162-3619-1-23.
The computational fluid dynamics method, which provides an estimation of the pressure drop in the airway before and after the stent implantation, is proposed in this study. This method is based on the finite volume model. The pressure field was solved by the Navier-Stokes equations. The proposed methodology was evaluated in seven health people (control group) and in fourteen patients who were assigned in two groups, in which one was tracheal stenosis and the other was bronchial stenosis. The results showed that the pressure drop after tracheal stent implantation became significantly smaller. For bronchial stent implantation cases, the airway resistance improved insignificantly.
本研究提出了一种计算流体动力学方法，可在支架植入前后对气道内的压降进行估计。该方法基于有限体积模型，通过纳维-斯托克斯方程求解压力场。该方法在七名健康人（对照组）和十四名患者中进行了评估，其中一组为气管狭窄，另一组为支气管狭窄。结果表明，气管支架植入后，压降明显减小。对于支气管支架植入病例，气道阻力改善不明显。
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