An optical coherence tomography study for imaging the round window niche and the promontorium tympani
Tympanosclerosis may involve the tympanic membrane, the ossicles, as well as the oval and round window niche, respectively. The surgical treatment of the obliterated oval window niche is most challenging. Beside stapesplasty, vibroplasty with coupling the floating mass transducer (FMT) onto the round window niche and into a new, so-called third window is indicated.
In the latter situation, drilling a hole into the
promontorium is necessary to couple the FMT close to the membranous endosteum. Any damage of the membranous
inner ear needs to be avoided. The question
was whether OCT is useful to identify the endosteum and to provide ...
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