[A new method for imaging intracranial cerebral arteries--3-dimensional transcranial duplex ultrasonography with image enhancement]. / Ein neues Verfahren zur Darstellung der intrakraniellen Hirnarterien--die dreidimensionale transkranielle Duplexsonographie mit Signalverstärkung.
Ultraschall Med
; 18(3): 110-5, 1997 Jun.
Article
en De
| MEDLINE
| ID: mdl-9340736
ABSTRACT
AIM:
A new data acquisition system for transcranial 3 D-ultrasonography was used. The present study examines the evaluation of intracranial cerebral arteries by 3 D-ultrasound and echo contrast agents in comparison to cerebral angiography.METHODS:
Ten patients, who underwent diagnostic cerebral angiography, were examined without knowledge of the angiographic results. Data acquisition through the transtemporal acoustic bone window was performed with a magnetic sensor system to track the spatial orientation of the ultrasound probe while scanning the volume of interest. We used a transcranial duplex system with power mode and stored a 3 D-data set before injection of transpulmonary stable contrast medium and afterwards.RESULTS:
Ipsilateral to the transducer anterior cerebral artery (ACA) in 90%, middle cerebral artery (MCA) in 90%, three or more branches of MCA in 60% and posterior cerebral artery (PCA) in 40% were analysed without injecting an echo contrast agent. After the contrast injection ACA, MCA, branches of MCA and PCA in 100% were visible. In 70% of cases the posterior and anterior communicating arteries were visualised only by means of a contrast agent.CONCLUSION:
Application of a transpulmonary stable ultrasound contrast agent in combination with 3 D transcranial duplex ultrasonography significantly enhances the visualisation of intracranial arteries.
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Colección:
01-internacional
Banco de datos:
MEDLINE
Asunto principal:
Procesamiento de Imagen Asistido por Computador
/
Ecoencefalografía
/
Aumento de la Imagen
/
Enfermedades Arteriales Cerebrales
/
Ultrasonografía Doppler Transcraneal
Tipo de estudio:
Diagnostic_studies
Límite:
Adult
/
Female
/
Humans
/
Male
/
Middle aged
Idioma:
De
Revista:
Ultraschall Med
Año:
1997
Tipo del documento:
Article