Quantitative temporal profiles of penumbra and infarction during permanent middle cerebral artery occlusion in rats
| Autor: | Brent Barbe, T. Kevin Hitchens, Gutti Rao, Chien Ho, Feng Zhang, Edwin M. Nemoto, Lesley M. Foley |
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| Rok vydání: | 2011 |
| Předmět: |
medicine.medical_specialty
Pathology Neurology medicine.diagnostic_test business.industry General Neuroscience Penumbra Infarction Magnetic resonance imaging computer.software_genre medicine.disease Neuroprotection Article Cerebral blood flow Voxel Internal medicine FOS: Biological sciences medicine Cardiology Effective diffusion coefficient Neurology (clinical) Cardiology and Cardiovascular Medicine business computer 69999 Biological Sciences not elsewhere classified |
| Zdroj: | Translational stroke research. 1(3) |
| ISSN: | 1868-4483 |
| Popis: | The basic premise of neuroprotection in acute stroke is the presence of salvageable tissue, but the spatio-temporal volume profiles of the penumbra and infarction remain poorly defined in preclinical animal models of acute stroke used to evaluate therapies for clinical application. Our aim was to define these profiles using magnetic resonance imaging (MRI) quantitative cerebral blood flow (CBF) and apparent diffusion coefficient (ADC) for dual-parameter voxel analysis in the rat suture permanent middle cerebral artery occlusion (pMCAO) model. Eleven male Sprague Dawley rats were subjected to pMCAO with MRI measurements of quantitative CBF and ADC at baseline, over the first 4 h (n = 9) and at 7, 14, and 21 days (n = 4). Voxel analysis of CBF and ADC was used to characterize brain tissue ischemic transitions. Penumbra, core, and hyperemic infarction volumes were significantly elevated (P |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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