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Assessment of Inter- and Intra-Rater Reliability of Tablet-Based Software to Measure Cochlear Duct Length.
Cooperman, Shayna P; Aaron, Ksenia A; Fouad, Ayman; Tran, Emma; Blevins, Nikolas H; Fitzgerald, Matthew B.
Afiliación
  • Cooperman SP; Department of Otolaryngology-Head and Neck Surgery, Stanford University, Stanford, California, USA.
  • Aaron KA; Department of Otolaryngology-Head and Neck Surgery, Stanford University, Stanford, California, USA.
  • Fouad A; Department of Otolaryngology-Head and Neck Surgery, Stanford University, Stanford, California, USA.
  • Tran E; Otolaryngology Department, Tanta University, Tanta, Egypt.
  • Blevins NH; Department of Otolaryngology-Head and Neck Surgery, Stanford University, Stanford, California, USA.
  • Fitzgerald MB; Department of Otolaryngology-Head and Neck Surgery, Stanford University, Stanford, California, USA.
Otol Neurotol ; 42(4): 558-565, 2021 04 01.
Article en En | MEDLINE | ID: mdl-33492059
OBJECTIVE: The objective of this study is to build upon previous work validating a tablet-based software to measure cochlear duct length (CDL). Here, we do so by greatly expanding the number of cochleae (n = 166) analyzed, and examined whether computed tomography (CT) slice thickness influences reliability of CDL measurements. STUDY DESIGN: Retrospective chart review study. SETTING: Tertiary referral center. PATIENTS: Eighty-three adult cochlear implant recipients were included in the study. Both cochleae were measured for each patient (n = 166). INTERVENTIONS: Three raters analyzed the scans of 166 cochleae at 2 different time points. Each rater individually identified anatomical landmarks that delineated the basal turn diameter and width. These coordinates were applied to the elliptic approximation method (ECA) to estimate CDL. The effect of CT scan slice thickness on the measurements was explored. MAIN OUTCOME MEASURES: The primary outcome measure is the strength of the inter- and intra-rater reliability. RESULTS: The mean CDL measured was 32.84 ±â€Š2.03 mm, with a range of 29.03 to 38.07 mm. We observed no significant relationship between slice thickness and CDL measurement (F1,164 = 3.04; p = 0.08). The mean absolute difference in CDL estimations between raters was 1.76 ±â€Š1.24 mm and within raters was 0.263 ±â€Š0.200 mm. The intra-class correlation coefficient (ICC) between raters was 0.54 and ranged from 0.63 to 0.83 within raters. CONCLUSIONS: This software produces reliable measurements of CDL between and within raters, regardless of CT scan thickness.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Conducto Coclear / Implantación Coclear Tipo de estudio: Observational_studies / Prognostic_studies Límite: Adult / Humans Idioma: En Revista: Otol Neurotol Asunto de la revista: NEUROLOGIA / OTORRINOLARINGOLOGIA Año: 2021 Tipo del documento: Article País de afiliación: Estados Unidos Pais de publicación: Estados Unidos
Texto completo
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Conducto Coclear / Implantación Coclear Tipo de estudio: Observational_studies / Prognostic_studies Límite: Adult / Humans Idioma: En Revista: Otol Neurotol Asunto de la revista: NEUROLOGIA / OTORRINOLARINGOLOGIA Año: 2021 Tipo del documento: Article País de afiliación: Estados Unidos Pais de publicación: Estados Unidos