Airway ventilation state calibration system and airway deformation prediction system during sleep

摘要

The nasal cavity model generation unit (41) extracts pixels having a pixel density value in a specific range from the three-dimensional image data of the subject's nasal cavity included in the DICOM data (21), and includes the extracted pixels. A nasal cavity model (50), which is a three-dimensional model of the nasal cavity, is generated based on the three-dimensional image data. The nasal cavity resistance calculating section (42) obtains a nasal cavity resistance value (51) by fluid analysis using the nasal cavity model (50) generated by the nasal cavity model generating section (41). The adjusting unit (43) adjusts the nasal cavity resistance value (51) obtained by the nasal cavity resistance value calculating unit (42) to the nasal cavity resistance value (52) measured by the nasal aspirometer so that the nasal cavity model generating unit ( In 41), the range of pixel density values extracted to generate the nasal cavity model (50) is adjusted.