Functional magnetic resonance imaging (fMRI) has been applied to study rat focal brain activation induced by intravenous administration of the GABA(A) antagonist bicuculline. Using magnetite nanoparticles as a blood pool contrast agent, local changes in cerebral blood volume (CBV) were assessed with
✦ LIBER ✦
Cocaine-induced changes in time course of regional cerebral blood volume and transit time as determined by dynamic MR imaging
✍ Scribed by Ka-Loh Li; James N. Suojanen
- Publisher
- John Wiley and Sons
- Year
- 1995
- Tongue
- English
- Weight
- 411 KB
- Volume
- 5
- Category
- Article
- ISSN
- 1053-1807
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✦ Synopsis
Abstract
We examined cocaine‐mediated changes in regional cerebral blood volume (rCBV) and mean transit time (MTT) in central brain structures of rats using functional MR imaging techniques. Changes in MTT and rCBV in animals who had previously been given cocaine depended on the length of time between the last pretreatment injection and the acute injection and seemed to parallel cocaine‐mediated changes in extracellular dopamine concentrations.
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Regional brain activation by bicuculline
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2000
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John Wiley and Sons
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English
⚖ 511 KB