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- W2394198352 abstract "Objective To investigate the value of high-resolution computed tomography(CT) densitometry in the diagnosis of otosclerosis.Methods CT scanning and pure tone test results of 34 patients(34 ears,the otosclerosis group) with surgically confirmed otosclerosis and 33 patients(33 opposite normal ears,the control group) with facial paralysis diagnosed at the same period were analyzed retrospectively.Seven regions of interest(ROI) were set manually around the otic capsule on the axial slice of 0.75-mm thick.The mean Hounsfieldunit(HU) values of the seven regions were measured.Based on the CT imaging,the ears with otosclerosis were classified into group A(no pathological CT findings) and group B(low density around the cochlea).In each ROI,the difference of mean HU values between the otoscerosis group and the control group was compared.In the otosclerosis group,the relationship between the findings of CT and the results of the audiometry was analyzed.Results The mean HU values in the area posterior and anterior to the oval window were significantly lower in the otosclerosis group than in the control group(the former: t=-2.030,P=0.046;the latter: Z=-4.979,P0.01).The patients(30 cases in group A and 4 cases in group B) showed a conductive hearing loss[9 cases(30%) in group A and 1 case(25%) in group B] or a mixed hearing loss[21 cases(70%) in group A and 3 cases(75%) in group B].Conclusions The bone density around the oval window might change in patients with otosclerosis." @default.
- W2394198352 created "2016-06-24" @default.
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- W2394198352 date "2009-01-01" @default.
- W2394198352 modified "2023-09-24" @default.
- W2394198352 title "Observation of osseous labyrinth high-resolution computed tomography densitometry in patients with otosclerosis" @default.
- W2394198352 hasPublicationYear "2009" @default.
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