[Conductive hearing loss caused by eustachian tube dysfunction according to the data of functional computed tomography].
The paper deals with computed tomography (CT) diagnosis of Eustachian tube dysfunction. A functional multislice spiral (MS) CT protocol has been first elaborated for the Eustachian tube. Twenty-three patients with unilateral conductive hearing loss and Eustachian tube dysfunction were examined. The normal functional anatomy of the Eustachian tube was evaluated on the side without evidence of pathology in 23 patients. Functional MSCT showed that the cartilaginous portion of the Eustachian tube opened partially and closed completely in 9 patients. Ten patients were found to have steady changes in the cartilaginous portion of the Eustachian tube. The developed method could confirm the cause of conductive hearing loss and optimally define a treatment policy.
I V
IV
Bodrova
V E
VE
Dobrotin
L A
LA
Kulakova
E V
EV
Fominykh
I Iu
IIu
Pokoziĭ
A S
AS
Lopatin
D005064:Eustachian Tube / Q000033:anatomy & histology / Q000503:physiopathology*; D005260:Female; D006314:Hearing Loss, Conductive / Q000503:physiopathology*; D006801:Humans; D008297:Male; D014057:Tomography, X-Ray Computed / Q000379:methods*