Xenonenhanced computed tomography

This technique employs relatively high concentrations (15-35 per cent) of stable xenon in association with computed X-ray transmission tomography. The resolution is higher than that obtained with isotope techniques, and if the dose is increased further and the period of monitoring prolonged it is possible to calculate the partition coefficients of various tissues on a point-to-point basis. However, xenon is not totally inert at higher concentrations. Its anesthetic properties will decrease cerebral metabolism and hence modify cerebral blood flow.

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