Automated detection of electrically evoked stapedius reflexes (eSR) during cochlear implantation.
Eur Arch Otorhinolaryngol
; 278(6): 1773-1779, 2021 Jun.
Article
in En
| MEDLINE
| ID: mdl-32748185
ABSTRACT
INTRODUCTION:
In cochlear implantation, objective fitting methods are needed to optimize audiological results in small children or patients with poor compliance. Intraoperatively measured electrically evoked stapedius reflexes (eSR) can be used as a marker for the patient's discomfort level. The aim of this study was to develop and evaluate an automated detection method for eSR and to compare it to the detection rate of the surgeon and independent observers.METHODS:
Cochlear implantation using a fully digital surgical microscope was performed. Movements of the stapedius tendon were recorded and analyzed by means of computer vision technique. Differences in eSR elicited by stimulating electrodes at different cochlear locations (basal, middle and apical) were analyzed. The eSR detection rate of the image processing algorithm was compared to the surgeon's detection rate and to those of two less experienced observers.RESULTS:
A total of 387 electrically impulses were applied. The stimulation of middle turn electrodes showed significantly higher detection rates (50.4%) compared to the basal (40.0%; p = 0.001) and apical (43.6%; p = 0.03) turn. The software identified significantly more of the applied stimuli (58.4%) compared to the surgeon (46.3%; p = 0.0007), the intermediate observer (37.7%; p < 0.0001) and the unexperienced observer (41.3%; p < 0.0001).CONCLUSION:
The feasibility of an automated intraoperative software-based detection of eSR is demonstrated. By improving the eSR detection methods and their clinical applicability, their utility in objective cochlear implant fitting may be substantially increased.Key words
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Main subject:
Cochlear Implants
/
Cochlear Implantation
Type of study:
Diagnostic_studies
Limits:
Child
/
Humans
Language:
En
Journal:
Eur Arch Otorhinolaryngol
Journal subject:
OTORRINOLARINGOLOGIA
Year:
2021
Document type:
Article
Affiliation country:
Germany