Comparison of 96-kV and 120-kV cone-beam CT for the assessment of cochlear implants

Autor: Iris Burck, Ibrahim Yel, Simon Martin, Moritz H. Albrecht, Vitali Koch, Christian Booz, Daniel Pinto dos Santos, Benjamin Kaltenbach, Hanns Ackermann, Juha Koivisto, Silke Helbig, Timo Stöver, Thomas J. Vogl, Jan-Erik Scholtz
Jazyk: angličtina
Rok vydání: 2024
Předmět:
Zdroj: BMC Medical Imaging, Vol 24, Iss 1, Pp 1-10 (2024)
Druh dokumentu: article
ISSN: 1471-2342
DOI: 10.1186/s12880-024-01322-4
Popis: Abstract Background To compare the diagnostic value of 120-kV with conventional 96-kV Cone-Beam CT (CBCT) of the temporal bone after cochlear implant (CI) surgery. Methods This retrospective study included CBCT scans after CI surgery between 06/17 and 01/18. CBCT allowed examinations with 96-kV or 120-kV; other parameters were the same. Two radiologists independently evaluated following criteria on 5-point Likert scales: osseous spiral lamina, inner and outer cochlear wall, semi-circular canals, mastoid trabecular structure, overall image quality, metal and motion artefacts, depiction of intracochlear electrode position and visualisation of single electrode contacts. Effective radiation dose was assessed. Results Seventy-five patients (females, n = 39 [52.0%], mean age, 55.8 ± 16.5 years) were scanned with 96-kV (n = 32, 42.7%) and 120-kV (n = 43, 57.3%) protocols including CI models from three vendors (vendor A n = 7; vendor B n = 43; vendor C n = 25). Overall image quality, depiction of anatomical structures, and electrode position were rated significantly better in 120-kV images compared to 96-kV (all p
Databáze: Directory of Open Access Journals