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Cerebral Blood Volume Measured with Inhaled C15O and Positron Emission Tomography
Abstract
Local cerebral blood volume (CBV) has been measured previously with inhaled 11 CO and positron emission tomography (PET). The model used assumes that equilibrium in tracer concentration has occurred between arterial and systemic venous blood before the PET measurement is made. To verify that this model may be used with the much shorter half-lived C 15 O, we have simultaneously measured arterial and venous blood radioactivity following C 15 O inhalation. Equilibrium occurred 95 ± 39 s after inhalation (n = 7). If the PET measurement is commenced prior to arteriovenous equilibrium, significant errors occur in calculated CBV. These data indicate that C 15 O may be used as a tracer for CBV measurement provided that emission data collection commences at ∼120 s after inhalation. Strict quality control measures must be maintained to minimize the contamination of administered C 15 O with 15 O-labeled CO 2.
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Metadata
- Authors
- Martin, W. R. W., Powers, W. J., & Raichle, M. E.
- Venue
- Journal of Cerebral Blood Flow & Metabolism
- Publisher
- SAGE Publications
- Published
- 1987-08
- Volume
- 7
- Issue
- 4
- Pages
- 421-426
- ISSN
- 0271-678X (ISSN-L)
- 1559-7016
- OpenAlex
- W1991707478
- Cited by
- 193
- References
- 0
- FWCI
- 6.62
- Type
- journal article
- Language
- en
- Open access
- closed
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- Martin, W. R. W., Powers, W. J., & Raichle, M. E. (1987). Cerebral Blood Volume Measured with Inhaled C15O and Positron Emission Tomography. Journal of Cerebral Blood Flow & Metabolism. https://doi.org/10.1038/jcbfm.1987.85
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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
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