Mobile Application-based Approach for the Measuring of Internal Nasal Structures

The internal nasal valve (INV) is one of the main causes of the nasal airflow obstruction. Minor changes in the cross-sectional area of the nasal valve region may have a significant impact on airflow, which in turn affects nasal function and the perception of airway patency. In recent years, the measurement of INV based on CT data has been widely used, but not all patients can be promptly performed CT. 111 patients who underwent endonasal surgery from September 2018 to January 2020 measured the cross-sectional area of the internal nasal valve and sphenoid sinus ostium using a new method. In all cases, we used the mobile application. The medium cross-sectional area of the internal nasal valve prior to septoplasty was 20–40 mm2, In the long term, we used this mobile App to measure the cross-sectional area and estimate the increase in the area after procedures. It easily showed a dynamic for sphenoid sinus ostium obturation. The new mobile App proved to be a fast and easily performed method. This application is useful for determining the cross-sectional area as well as to analyze this area in the dynamics.