Oedema detection

A - Human Necessities – 61 – B

Patent

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A61B 5/053 (2006.01)

Patent

CA 2578106

A method of detecting tissue oedema in a subject. The method includes determining a measured impedance for first and second body segments. An index indicative of a ratio of the extra-cellular to intra-cellular fluid is then calculated for each body segment, with these being used to determine an index ratio based on the index for the first and second body segments. The index ratio can in turn be used to determine the presence, absence or degree of tissue oedema, for example by comparing the index ratio to a reference or previously determined index ratios.

L'invention concerne une méthode de détection d'un oedème tissulaire chez un sujet. La méthode consiste à déterminer une impédance mesurée pour un premier et un second segments corporels. Un indice d'un taux de liquide extracellulaire relativement à un taux de liquide intracellulaire est ensuite calculé pour chaque segment corporel, et le résultat est exploité pour déterminer un rapport d'indice sur la base de l'indice du premier et du second segments corporels. Le rapport d'indice peut, à son tour, être exploité pour déterminer la présence, l'absence ou le degré d'évolution de l'oedème tissulaire, par exemple par comparaison du rapport d'indice à des rapports d'indice de référence ou à des rapports d'indice établis antérieurement.

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