Relationship Between Clinical Test Results and Morphologic Severity Demonstrated by Sitting 3-D CT in Patients With Patulous Eustachian Tube

Abstract

Under resting conditions, the lengths of the closed area of the ETs in PET groups are clearly shorter than in groups without PET based on sitting position CT scans in resting condition. Among the symptoms and clinical test findings including the ET function test results, the presence of tympanic membrane movement induced by respiration, the high degree of EAC pressure change in TTAG, as well as the positive results of sonotubometry are significantly correlated with the positive findings of sitting CT revealing the open ET.