Physiologic implications of adding small amounts of carbon dioxide to the gas mixture during inhalation of xenon.
Neuroradiology
; 34(4): 297-300, 1992.
Article
em En
| MEDLINE
| ID: mdl-1528437
ABSTRACT
In addition to being a physiologically active tracer of CBF, xenon (Xe) in subanesthetic concentrations produces a relatively mild lowering of carbon dioxide (CO2) in the blood and elevation of transcranial Doppler (TCD) velocity. The addition of small concentrations of CO2 (0.4-1.2%) to the inhaled mixture produced no measurable effect on end tidal (P(et)) CO2 or TCD velocity. Cerebral blood flow (CBF) alterations induced by Xe are minimized by allowing P(et)CO2 to fall, permitting quantitative measurement of CBF by the Xe/CT CBF method.
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Base de dados:
MEDLINE
Assunto principal:
Xenônio
/
Encéfalo
/
Dióxido de Carbono
/
Hemodinâmica
Limite:
Adult
/
Aged
/
Female
/
Humans
/
Male
/
Middle aged
Idioma:
En
Revista:
Neuroradiology
Ano de publicação:
1992
Tipo de documento:
Article