Perfluorocarbon (PFC) emulsions have been developed as oxygen carrying blood substitutes. High fluorine concentrations allow them to be used in 19F NMR imaging of blood vessels. Furthermore, 19F relaxation times in PFCs are dependent on oxygen tension (pO2) so that NMR imaging may provide a noninvas
19F 2-FDG NMR imaging of the brain in rat
โ Scribed by Tsutomu Nakada; Ingrid L. Kwee; Beatrice V. Griffey; Richard H. Griffey
- Publisher
- Elsevier Science
- Year
- 1988
- Tongue
- English
- Weight
- 867 KB
- Volume
- 6
- Category
- Article
- ISSN
- 0730-725X
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โฆ Synopsis
Images of the rat head reflecting glucose utilization were obtained using 2-fluoro-2-deoxy-D-glucose (2-FDG) and 19F nuclear magnetic resonance (NMR) imaging. Spatial heterogeneity of glucose utilization in the rat head was clearly demonstrated showing significantly higher glucose utilization in the brain as compared to the surrounding tissues. Although the potential adverse effects of the high doses of 2-FDG (400 mg/kg) needed to perform the study preclude immediate application of this technique to clinical quantitative glucose utilization studies, the present study shows potential for future development of glucose utilization imaging by NMR.
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The inhibitory effects of an aldose reductase inhibitor, sorbinil (Pfizer, NY), on cerebral glucose metabolism were investigated noninvasively in rat brain using 19F nuclear magnetic resonance (NMR) spectroscopy and 2-fluoro-2-deoxy-D-glucose (2-FDG). Sorbinil given orally in the daily recommended d
Metabolism of trifluorothymidine (TFT) and its transport across the blood-brain barrier (BBB) has been measured quantitatively in rats by fluorine-19 nuclear magnetic resonance spectroscopy ( 19 F NMR). It is demonstrated that TFT crosses the BBB in micromolar quantities and is metabolized in brain