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Estimating volumes of intra-abdominal blood using electrical impedance imaging

Sadleir, R.J., Fox, R.A., van Kann, F.J. and Attikiouzel, Y. (1992) Estimating volumes of intra-abdominal blood using electrical impedance imaging. In: 14th Annual International Conference of the IEEE Engineering in Medicine and Biology Society, 29 October - 1 November, Paris, France pp. 1750-1751.

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Electrical Impedance Imaging is a non-invasive method of imaging which we intend to apply to the problem of detecting intraabdominal bleeding in Emergency Centre patients. Experiments performed using a cylindrical saline-gel phantom show that as little as 25 ml of free blood within the abdomen may be detected. We also find a strong linear correlation between the total resistivity change created by the anomaly and the volume of the equivalent blood anomaly; thus enabling us to easily quantify the volume of blood perfused into the abdomen over a period of time directly from a reconstructed image. The total resistivity change produced by an anomaly is also observed to be independent of its radial position within the phantom.

Item Type: Conference Paper
Publisher: IEEE
Copyright: © 1997 IEEE
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