The nasal cavity structure of one patient was reconstructed by the method of surface rendering based on his CT images. In a respiratory period the change of air flux in the nasal cavity was supposed based on the tidal volume and the respiratory period gained by statistical method. The digital simulation and the analysis of the airflow in the nasal cavity was made by the FEA method and the result was compared with the data from literatures. The comparison indicates that the result is confident. From the result we can observe the airflow distribution quantitatively in the nasal cavity in the period of respiration.
Adult ; Computer Simulation ; Humans ; Imaging, Three-Dimensional ; Male ; Models, Biological ; Nasal Cavity ; anatomy & histology ; physiology ; Numerical Analysis, Computer-Assisted ; Respiration ; Tomography, Spiral Computed