Is CT necessary for imaging paediatric congenital sensorineural hearing loss?
Cochlear Implants Int
; 21(2): 75-82, 2020 03.
Article
en En
| MEDLINE
| ID: mdl-31547783
Objectives: To determine if MRI alone is adequate for pre-operative assessment of paediatric congenital sensorineural hearing loss (SNHL). While aberrant intratemporal facial nerve anatomy is usually occult on MRI, we postulate that the majority of cases have no adverse bearing on surgical outcomes.Methods: MRI and CT of the temporal bones were analysed in 240 children who underwent both on the same day for SNHL. Only children under the age of 5 years with no reported clinical syndrome or dysmorphic external ear anatomy were included.Results and discussion: 169 patients satisfied the inclusion criteria. MRI detected 32/54 cases of cochleovestibular dysplasia, with the majority of the additional CT findings comprising subtle incomplete partition type 2 (IP2) anomalies. Of the 22 cases not evident on MRI, 13 patients also had large vestibular aqueduct syndromoe (LVAS), which would have prompted evaluation with CT due to the near universal co-existence of these entities. Only one patient exhibited aberrant intratemporal facial nerve anatomy that may have conferred surgical risk and was occult on MRI.Conclusion: In a defined paediatric SNHL cohort, the addition of routine temporal bone CT to MRI offers limited additional yield but confers a significant radiation burden on a young population.
Palabras clave
Texto completo:
1
Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Imagen por Resonancia Magnética
/
Tomografía Computarizada por Rayos X
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Imagen Multimodal
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Toma de Decisiones Clínicas
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Pérdida Auditiva Sensorineural
Tipo de estudio:
Evaluation_studies
/
Observational_studies
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Prognostic_studies
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Risk_factors_studies
Límite:
Female
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Humans
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Infant
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Male
Idioma:
En
Revista:
Cochlear Implants Int
Asunto de la revista:
AUDIOLOGIA
Año:
2020
Tipo del documento:
Article
País de afiliación:
Australia
Pais de publicación:
Reino Unido