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Ingolf Menn, Walter Wild

Exertion of the Principle of Spatial Filtering at the Measuring of the Human Blood Flow Velocity

Keywords: optical velocity measurement, spatial filtering, microcirculation, blood cell velocity

For the examination of the microcirculation and in particular the blood flow conditions, cutaneous capillary microscopy is an approach that has gained significance in the last years. It is a non-invasive method, gentle on patients, which makes the capillary shape visible in the microcirculation area of interest. A convenient area for observation is the nail fold of a finger. An improved method for the examination of the microcirculation by measuring the blood cell velocity in the capillaries at the nail fold is presented in this paper. The new sensor technique performs in-vivo measurements at the nail fold in realtime. To found a correlation between surface temperature and flow rate, the temperature distribution at the nail fold is measured simultaneously.

tm – Technisches Messen, Oldenbourg Wissenschaftsverlag

Print ISSN: 0171-8096
Volume: 73, 04/2006
Pages: 230 - 236

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