Abstract
The average maximal blood flow (A/L) and late cardiac diastolic blood flow (d) of right and left internal carotid arteries were measured on the patients with moya-moya disease by the Doppler Ultra-sound method percutaneously. All patients has been diagnosed as moya-moya disease previously by the cerebral angiography. They were two males and three females and their ages were between 6 years 10 months and 9 years 6 months, averaging 8 years a month. The blood flows were measured at the time from 6 months to 4 years 6 months after the diagnosis by cerebral angiography, and all patients did not show any significant neurological abnormality. The blood flow of thirteen epileptic patients with grandmal episodes were measured as control and their average age was 8 years 3 months. Comparing with the control, low values of both A/L and d were shown in the moya-moya patients. But d value was more useful for the diagnosis of the moya-moya disease than A/L value. The control children showed higher values of A/L than that of healthy adults.