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  • Title: Non-invasive glycaemia blood measurements by electromagnetic sensor: study in static and dynamic blood circulation.
    Author: Gourzi M, Rouane A, Guelaz R, Alavi MS, McHugh MB, Nadi M, Roth P.
    Journal: J Med Eng Technol; 2005; 29(1):22-6. PubMed ID: 15764378.
    Abstract:
    In this paper, we present the results of non-invasive blood glycaemia measurements. The blood used in the measurements was calf blood. The measurement method uses an electromagnetic sensor based on eddy currents, which allows the detection of blood glycaemia levels through the variation of the dielectric parameters of the blood. A change in blood glucose concentration causes a variation in the dielectric parameters, in particular conductivity. Detection is only possible at a resonant frequency. The measurements were taken in a static and dynamic state (with and without circulation of blood). The blood is inside a plastic tube placed within the sensor and is surrounded by gelatine, which simulates muscular tissue. The plastic tube simulates the vein where blood circulation occurs. The in vitro results in both cases (static and dynamic) are provided. Under unfavourable conditions we can detect a change of +/- 2 g/l of glucose. We present and discuss these results.
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