| 摘要 |
The invention relates to a method and device for determining the flow in a blood vessel, comprising the determining the relation between the shear rate and the impedance of flowing blood, measuring the impedance in the blood in a cross-section of the blood vessel, determining the shear rate from this relation and the measured impedance, determining the size of the cross-section of the blood vessel, selecting a theoretical relative flow distribution over the blood vessel cross-section, determining the average flow speed on the basis of the average shear rate and the relative flow distribution, and determining the flow volume from the determined average flow speed and the cross-section.
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