Abstract:
:Otosclerosis (otospongiosis) is a primary focal disease of the labyrinthine capsule. The stapes footplate is fixed when the spongiotic focus expands and invades the oval window. Persons with stapedial otosclerosis experience a progressive conductive hearing loss. In many cases, cochlear degeneration is observed, in which a mixed hearing loss occurs. Using computed tomography (CT), we studied the ears of 45 selected patients with conductive or mixed hearing loss. CT proved valuable in determining otosclerotic changes of the oval window and otic capsule. Spongiotic changes of the otic capsule are better appreciated by CT than complex motion tomography. The usefulness of CT in diagnosing other causes of conductive or mixed hearing loss is also described.
journal_name
Radiologyjournal_title
Radiologyauthors
Mafee MF,Henrikson GC,Deitch RL,Norouzi P,Kumar A,Kriz R,Valvassori GEdoi
10.1148/radiology.156.3.4023230subject
Has Abstractpub_date
1985-09-01 00:00:00pages
709-14issue
3eissn
0033-8419issn
1527-1315journal_volume
156pub_type
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