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

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 proporti...

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Bibliographic Details
Published in:Medical & biological engineering & computing Vol. 46; no. 11; pp. 1161 - 1167
Main Authors: Xiong, Guanxia, Zhan, Jiemin, Zuo, Kejun, Li, Jianfeng, Rong, Liangwan, Xu, Geng
Format: Journal Article
Language:English
Published: Berlin/Heidelberg Springer-Verlag 01.11.2008
Springer Nature B.V
Subjects:
Adult
Airway management
Airway Resistance
Biomedical and Life Sciences
Biomedical Engineering and Bioengineering
Biomedicine
CAS
Computer Applications
Computer assisted surgery
Computer Simulation
Endoscopy
Human Physiology
Humans
Image Processing, Computer-Assisted - methods
Imaging
Middle Aged
Models, Anatomic
Nasal Cavity - diagnostic imaging
Nasal Cavity - physiopathology
Otolaryngology
Paranasal Sinuses - surgery
Postoperative Period
Radiology
Simulation
Sinuses
Software
Special Issue - Original Article
Studies
Surgery
Tomography, X-Ray Computed
Ultrasonography - methods
Young Adult
Three dimensional reconstruction
Nasal cavity
Computational fluid dynamics
Functional endoscopic sinus surgery
Laminar nasal airflow
ISSN:0140-0118, 1741-0444, 1741-0444
Online Access:Get full text
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Summary: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.
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ISSN:0140-0118
1741-0444
1741-0444
DOI:10.1007/s11517-008-0384-1