Advancing Cochlear Implant Programming: X-ray Guided Anatomy-Based Fitting.

Autor:	Alahmadi A; King Abdullah Ear Specialist Center (KAESC), College of Medicine, King Saud University Medical City (KSUMC), King Saud University, Riyadh, Saudi Arabia., Abdelsamad Y; Research Department, MED-EL GmbH, Riyadh, Saudi Arabia., Thabet EM; King Abdullah Medical City, Makkah, Saudi Arabia., Hafez A; Electrophysiology Department, MED-EL GmbH, Riyadh, Saudi Arabia., Alghamdi F; King Abdullah Medical City, Makkah, Saudi Arabia., Badr KM; King Abdullah Medical City, Makkah, Saudi Arabia., Alghamdi S; King Abdullah Medical City, Makkah, Saudi Arabia., Hagr A; King Abdullah Ear Specialist Center (KAESC), College of Medicine, King Saud University Medical City (KSUMC), King Saud University, Riyadh, Saudi Arabia.
Jazyk:	angličtina
Zdroj:	Otology & neurotology : official publication of the American Otological Society, American Neurotology Society [and] European Academy of Otology and Neurotology [Otol Neurotol] 2024 Feb 01; Vol. 45 (2), pp. 107-113.
DOI:	10.1097/MAO.0000000000004069
Abstrakt:	Background: Anatomy-based fitting (ABF) is a new research area in the field of cochlear implants (CIs). Despite the reported benefits and acceptable levels of ABF among CI recipients, some limitations remain, like the postoperative computed tomography (CT) scan, which is preferred for confirming electrode array insertion. Objective: This study aimed to investigate the feasibility of using plain film radiography (X-ray) for postoperative electrode detection and for building ABF as an alternative to CT. Methods: A total of 53 ears with CI were studied. All cases had routine post-insertion X-rays in the cochlear view and additionally underwent postoperative CT. The insertion angles and center frequencies measured by two independent observers were compared for each imaging modality. The angular insertion depth and center frequencies resulting from the X-ray and CT scans were then compared. Results: No significant differences were observed between the X-ray- and CT-measured angles for the electrode contacts. Radiographic measurements between the two readers showed an almost perfect (≥0.8) or substantial (0.71) intraclass correlation coefficient along the electrode contacts. X-ray images showed a mean difference of 4.7 degrees from CT. The mean semitone deviation of the central frequency between the CT and X-ray images was 0.6. Conclusions: X-ray imaging provides a valid and easy-to-perform alternative to CT imaging, with less radiation exposure and lower costs. The radiographs showed excellent concordance with the CT-measured angular insertion depth and consequently with the central frequency for most electrode contacts. Therefore, plain X-ray could be a viable alternative in building ABF for the CI recipients. Competing Interests: The authors disclose no conflicts of interest. (Copyright © 2024, Otology & Neurotology, Inc.)
Databáze:	MEDLINE
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