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[Disruptions of hemispheric blood flow and deep cerebral hematomas]
Cerebral blood flow measurements with single photon emission tomography and 133Xe inhalation was performed in 18 patients with hematomas, 14 thalamo-capsular, 4 capsulo-lenticular. In thalamo-capsular cases and in standard conditions, ipsilateral hemispheric C.B.F. and contralateral cerebellar C.B.F. were decreased; a concomitant depression of frontal and temporal C.B.F. was often noted. A similar change was found in capsulo-lenticular cases, the frontal C.B.F. being however less depressed. An attenuation of interhemispheric asymmetry was often found after acetazolamide intravenous injection. A significant correlation was demonstrated between interhemispheric asymmetry index (AI) and frontal and temporal AI.
Cerebral blood flow measurements with single photon emission tomography and 133Xe inhalation was performed in 18 patients with hematomas, 14 thalamo-capsular, 4 capsulo-lenticular. In thalamo-capsular cases and in standard conditions, ipsilateral hemispheric C.B.F. and contralateral cerebellar C.B.F. were decreased; a concomitant depression of frontal and temporal C.B.F. was often noted. A similar change was found in capsulo-lenticular cases, the frontal C.B.F. being however less depressed. An attenuation of interhemispheric asymmetry was often found after acetazolamide intravenous injection. A significant correlation was demonstrated between interhemispheric asymmetry index (AI) and frontal and temporal AI.