Medical & Biological Engineering & Computing

, Volume 46, Issue 11, pp 1161–1167 | Cite as

Numerical flow simulation in the post-endoscopic sinus surgery nasal cavity

  • Guanxia Xiong
  • Jiemin Zhan
  • Kejun Zuo
  • Jianfeng Li
  • Liangwan Rong
  • Geng Xu
Special Issue - Original Article


In this study we utilized computational fluid dynamic (CFD) techniques to construct a numerical simulation of nasal cavity airflow pre and post virtual functional endoscopic surgery (FESS). A healthy subject was selected, and CFD techniques were then applied to construct an anatomically and proportionally accurate three-dimensional nasal model based on nasal CT scans. A virtual FESS intervention was performed numerically on the normal nasal model using Fluent software. Navier-Stokes and continuity equations were used to calculate and compare airflow, velocity, distribution and pressure in both the pre and post FESS models. In the post-FESS model, there was an increase in airflow distribution in the maxillary, ethmoid and sphenoid sinuses, and a 13% increase through the area connecting the middle meatus and the surgically opened ethmoid. There was a gradual decrease in nasal resistance in the posterior ethmoid sinus region following FESS. These findings highlight the potential of this technique as a powerful preoperative assessment tool to aid clinical decision-making.


Functional endoscopic sinus surgery Computational fluid dynamics Laminar nasal airflow Three dimensional reconstruction Nasal cavity 



This research was supported by grant number 5010 from the Clinical Medicine Research board of Sun Yat-Sen University.


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Copyright information

© International Federation for Medical and Biological Engineering 2008

Authors and Affiliations

  • Guanxia Xiong
    • 1
  • Jiemin Zhan
    • 2
  • Kejun Zuo
    • 1
  • Jianfeng Li
    • 2
  • Liangwan Rong
    • 2
  • Geng Xu
    • 1
  1. 1.Otolaryngology Hospital of the First Affiliated Hospital of Sun Yat-sen UniversityOtolaryngology Institute of Sun Yat-sen UniversityGuangzhouPeople’s Republic of China
  2. 2.Department of Applied Mechanics and EngineeringSun Yat-Sen UniversityGuangzhouPeople’s Republic of China

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