Rhinomanometry

The rhinomanometry is the manometry (from Greek manos for " thin, permeable" and the Greek suffix -metry for " dimension" ) of the nose (Greek rhis ). In other words, the rhinomanometry is a measurement method for determining the air resistance when breathing through the nose.

By using a special breathing mask is measured during the inhalation and exhalation of the differential pressure between the space in front of the nostril and oral cavity.

Due to the turbulent flow inside the nose resulting in a non-linear relationship between the differential pressure and volume flow:

Development of rhinomanometry to Rhinoresistometry

The Rhinoresistometry is a computerized measurement to objectification of nasal obstruction based on the principles of rhinomanometry.

On the basis of laws of flow dynamics software for the calculation of relevant parameters of the logical rhino rhinomanometry measured values ​​has been developed which allows the determination of the pressure difference and the narinochoanalen tidal volume velocity. The investigation process is the same for a rhinomanometry.

The inspiratory and expiratory resistance as a function of the volume velocity of both sides of the nose are calculated before and after decongestion and plotted in a graph. Compared to normal values ​​, the physician may ( deviated septum, etc. ) distinguish a swelling- induced nasal obstruction by a structural. Information may also be collected about the behavior of turbulence in the nose and the suction of the alar cartilage.

Others

The German Research Foundation ( DFG) in 1992, the projects Rhinological functional diagnostics by means of computer simulation of respiratory flow in the nose and combination of Rhinoresistometry using Acoustic rhinometry, headed by Prof. Dr. hab. Gunter Mlynski and Prof. Dr. -Ing. José Luis Encarnação promoted, which contributed significantly to the development of Rhinoresistometry.