Sonographic ventriculography: a new potential use for sonographic contrast agents in neonatal hydrocephalus.
AJNR Am J Neuroradiol
; 19(10): 1931-4, 1998.
Article
em En
| MEDLINE
| ID: mdl-9874549
ABSTRACT
BACKGROUND AND PURPOSE:
Sonographic identification of communicating and noncommunicating forms of posthemorrhagic hydrocephalus can be difficult. This study evaluates the feasibility of using sonographic contrast agents to determine ventricular patency in a newborn animal model.METHODS:
A craniotomy was performed and a catheter was placed under sonographic guidance into the lateral ventricle in five anesthetized newborn piglets. Sonograms were obtained before and after intraventricular injection of 0.01 mL of a sonographic contrast agent (Imagent, formulation AF0150; Alliance Pharmaceutical Corp, San Diego, CA) diluted in 1 mL normal saline, and images were assessed for presence and location of echogenic contrast material.RESULTS:
Flow of contrast material was identifiable from the ipsilateral lateral ventricle into the contralateral lateral ventricle, and through the third and fourth ventricles into the basal cisterns during real-time sonography in every animal. Ventricular and cistern echogenicity remained increased for approximately 4 minutes after injection.CONCLUSION:
Contrast-enhanced sonographic ventriculography has the potential to identify patency of CSF pathways in newborns with hydrocephalus and an indwelling ventricular catheter.
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Ecoencefalografia
/
Ventrículos Cerebrais
/
Meios de Contraste
/
Hidrocefalia
Limite:
Animals
Idioma:
En
Revista:
AJNR Am J Neuroradiol
Ano de publicação:
1998
Tipo de documento:
Article
País de afiliação:
Estados Unidos