Transcranial evaluation of blood flow velocity in the basilar artery in rats by high frequency ultrasonic Doppler technique
| Autor: | I. L. Konorova, M. A. Lebedeva, D. D. Matsievskiy |
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| Rok vydání: | 2010 |
| Předmět: |
Male
Materials science Epinephrine Ultrasonography Doppler Transcranial Blood Pressure General Biochemistry Genetics and Molecular Biology medicine.artery Occlusion Basilar artery medicine Pulse wave Animals Vasoconstrictor Agents Rats Wistar Mean Blood Flow Velocity General Medicine Blood flow Anatomy Rats Blood pressure Transducer Regional Blood Flow Cerebrovascular Circulation Bandage Blood Flow Velocity Biomedical engineering |
| Zdroj: | Bulletin of experimental biology and medicine. 148(4) |
| ISSN: | 1573-8221 |
| Popis: | The possibility of recording the blood flow velocity in the basilar artery (a. basilaris) in rats through the occipital membrane by a two-channel ultrasonic Doppler system with single-element transducers was demonstrated. A. basilaris was located with a contact transducer working at a frequency of 33 MHz in two modes: pulsed and permanent. The mean blood flow velocity in narcotized male Wistar rats was 4.93+/-0.78 cm/sec. Functional loading tests (acute elevation of blood pressure and occlusion of the common carotid arteries) showed that this method allows recording dynamic characteristics of the blood flow reactions in a. basilaris with evaluation of its pulse wave pattern and analyzing their correlations with blood flow parameters in the carotid arteries using simultaneously the second (bandage) transducer. |
| Databáze: | OpenAIRE |
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