CFD Analysis of Virtual Surgery for Patient with Chronic Sinusitis
This paper focuses on performing virtual surgery on pre-operation nasal cavity model of patient with chronic
sinusitis and evaluate the effects of virtual surgery on the patient’s nasal airflow. Advancement in Computational Fluid
Dynamics (CFD) allows better observation of human nasal airflow and opens up various opportunities for treatment
planning. The application of CFD was used to construct numerical simulations of nasal airflows for the pre and post virtual
surgical models. Patient with chronic sinusitis was selected and three-dimensional nasal model was constructed based on CT
scans. A virtual surgery was performed via manual modifications on the disease nasal model using CATIA V5 software. The
results and effects of the virtual surgery on the nasal airflow were analyzed and compared with standardized nasal model. Pre
and post virtual surgery conditions of the patient can be studied through various data collections such as cross sectional
areas, average velocity magnitudes, velocity contours and streamlines. The analysis of the virtual surgery model shows
satisfying results as the average velocity magnitudes match closely with standardized model with the differences of less than
30% at middle region. The findings highlight the potential usefulness of CFD-generated numerical simulation as a preoperative
assisting tool in surgical treatment planning for chronic diseases.
Keywords— CFD, Computational Analysis, Chronic Sinusitis, Nasal Airflow & Virtual Surgery.