PT - JOURNAL ARTICLE AU - Cronqvist, S E AU - Kullberg, G TI - Stereotaxic lesion as a model of brain edema. DP - 1983 May 01 TA - American Journal of Neuroradiology PG - 722--724 VI - 4 IP - 3 4099 - http://www.ajnr.org/content/4/3/722.short 4100 - http://www.ajnr.org/content/4/3/722.full SO - Am. J. Neuroradiol.1983 May 01; 4 AB - Repeated computed tomographic (CT) examinations after thalamotomy showed a lesion vrying in size over time. This variation was interpreted as indicating presence of an edema. The effect of steroid treatment upon such an edema was tested in a pilot study of 28 patients, 16 of whom were given betamethasone. The diameter of the lesion as observed on CT was used as a measure of the amount of edema. The mean diameter was significantly lower in the steroid-treated group as compared with controls (p less than 0.01, Mann-Whitney U test). The groups were comparable with respect to other variables that might influence lesion size. It is concluded that steroid treatment has an edema-preventing effect.