MRI of the petromastoid canal in children.
J Magn Reson Imaging
; 39(4): 966-71, 2014 Apr.
Article
em En
| MEDLINE
| ID: mdl-24783242
ABSTRACT
PURPOSE:
To characterize the MRI features of the petromastoid canal in children with sensorineural hearing loss (SNHL) and in normal infants. MATERIALS ANDMETHODS:
High resolution MRI examinations of 564 children who were evaluated for SNHL and brain MRI examinations of 112 infants who had normal studies were studied independently by two reviewers.RESULTS:
In SNHL group, visibility of the PMC decreased for right and left PMC (P < 0.001). The width of the right PMC significantly decreased as age increased (P < 0.0001). There was no relation between abnormalities of membranous labyrinth and cochlear nerve and PMC visibility in children with SNHL (p > 0.05). In the normal group, the PMC visibility decreased with increasing age (right P = 0.0001, left P = 0.001). In the normal group also, as age increased, the PMC width decreased for both PMCs (right, P = 0.0006; left, P = 0.03).CONCLUSION:
The PMC is more frequently visualized in young children. Its visibility and width are not associated with abnormalities of membranous labyrinth and cochlear nerves.
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Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Osso Petroso
/
Envelhecimento
/
Imageamento por Ressonância Magnética
/
Nervo Coclear
/
Fossa Craniana Posterior
/
Perda Auditiva Neurossensorial
/
Orelha Interna
/
Processo Mastoide
Limite:
Child
/
Child, preschool
/
Female
/
Humans
/
Infant
/
Male
/
Newborn
Idioma:
En
Revista:
J Magn Reson Imaging
Assunto da revista:
DIAGNOSTICO POR IMAGEM
Ano de publicação:
2014
Tipo de documento:
Article