Identification and localization of intracerebral vessels by microvascular doppler in stereotactic pallidotomy and thalamotomy: technical note.
Neurosurgery
; 40(4): 877-8; discussion 878-9, 1997 Apr.
Article
em En
| MEDLINE
| ID: mdl-9092867
ABSTRACT
OBJECTIVE:
To identify intracerebral vessels in proximity to the target for thermocoagulation in functional neurosurgery, we use a microvascular doppler sensor held in a special supporting needle that fits in the straightening cannula for the thermocoagulation needle. TECHNIQUE After insertion of the straightening cannula aimed at the stereotactic target, the microvascular doppler probe positioned at the tip of a supporting hollow needle is advanced through the cannula. The proximal micrometer gauge indicates the depth of the tip of the doppler probe. By setting the doppler device to the shortest focusing depth (0.1 mm), the maximum pulsatile vascular sound indicates the depth of the vessel. RESULTS ANDCONCLUSION:
A prominent vascular sound was identified in 3 of 13 cases. By adjusting the depth of the target, no major bleeding was experienced after thermocoagulation lesions were made. This technique secures and protects the fragile microvascular doppler and identifies any significant arterial vessels at the stereotactic target, thus avoiding vascular injury.
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Base de dados:
MEDLINE
Assunto principal:
Tálamo
/
Veias Cerebrais
/
Artérias Cerebrais
/
Ultrassonografia Doppler
/
Eletrocoagulação
/
Globo Pálido
Tipo de estudo:
Diagnostic_studies
Limite:
Humans
Idioma:
En
Ano de publicação:
1997
Tipo de documento:
Article