Electromanometric function test of the nasofrontal duct
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Abstract:
An electromanometric methods for the quantitative measurement of the ventilation of the frontal sinus is described which also measures the resistance of the nasofrontal duct to an experimentally produced hydrodynamic current. The biophysical basis as well as typical results of the examination are demonstrated and the field of clinical application in the differential diagnosis of frontal sinus affections is outlined.