REGIONAL CEREBRAL BLOOD-FLOW MEASUREMENTS WITH XENON-CT IN THE PREDICTION OF DELAYED ENCEPHALOPATHY AFTER CARBON-MONOXIDE INTOXICATION

Reported evaluations of CBF with Xe/CT were performed in 11 patients d uring the lucid interval following CO intoxication. Results were compa red with clinical and SPECT data. Two patients developed neuropsychiat ric behavior (delayed encephalopathy) one month following the initial recovery. The symptoms persisted in one of them 15 months later. Their CBF values as well as those in most of the other patients, monitored al the basal ganglia and while matter areas, were in relation with the clinical outcome. However, further studies with a larger number or pa tients, are needed to confirm the predictive significance of Xe/CT mea surements for the long term sequelae of CO poisoning.