Eustachian Tube Three-dimensional Reconstruction of Secretory Otitis Media

Obejective To study relationship between Eustachian tube and secretory otitis media and to explore the pathogeny of secretory otitis by three-dimensional reconstruction of Eustachian tube.Methods Thirty cases of secretory otitis media(male 19、female 11) were selected randomly.Everyone was checked by otoscope and audiometry.Their bilateral Eustachian tubes were scanning by helix CT while making Valsalva's action.All images were passed on to work station to make three-dimensional reconstruction.Results Four patients were found have Eustachian tube diseases,while most of patients'Eustachian tubes ventilated normally.Conclusions Threedimensional reconstruction of Eustachian tube can open out some pathogens of some secretory otitis medias.It will be helpful to diagnosis and therapy of secretory otitis media.