Shigeru Nishimaki

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We present a case of Dandy-Walker malformation associated with occipital meningocele, microphthalmia, and cleft palate. Small numbers of cases of Dandy-Walker malformation with occipital meningocele have been described in the literature, but to our knowledge, non of these also had microphthalmia or cleft palate. This association suggests that time of(More)
OBJECTIVE The aim of this series was to determine whether cerebral blood flow velocities (CBFVs) in the anterior cerebral artery (ACA) and basilar artery (BA) correlate with the severity of asphyxia in infants and whether these velocity measures can be useful for predicting early developmental prognosis. METHODS We measured CBFVs in the ACA and BA by(More)
Cerebral blood flow velocity was measured in the middle cerebral artery of two patients who exhibited unilateral neonatal cerebral infarction during the neonatal period. Doppler studies demonstrated increases in cerebral blood flow velocity but decreases in the resistance index on the affected side of the middle cerebral artery in the neonate who developed(More)
We studied the value of Pourcelot's index of resistance in the anterior cerebral arteries (RI-ACA) and basilar artery (RI-BA) in 69 measurements of term infants on days 1, 5, 10, 15, 20, 30 and 60. The mean value of RI-ACA (0.723 +/- 0.038, +/- SD) was significantly lower than that of RI-BA (0.750 +/- 0.041) (p less than 0.001). RI-ACA values were higher(More)
We studied the values of the Pourcelot's index of resistance in the anterior cerebral artery (RI-ACA) and basilar artery (RI-BA) in very low birth weight infants weighing less than 1,500 g at birth. At the time of measurements, their postconceptional ages were 32, 34, 36, 38, 40 and 42 weeks. The mean value of RI-ACA (0.744 +/- 0.026, +/- SD) was(More)
We made 10 measurements of Pourcelot's index of resistance (RI) in the anterior cerebral artery (RI-ACA) and basilar artery (RI-BA), and RI ratio (= RI-ACA/RI-BA) in seven cases of hydrocephalus before and after treatment. The mean values of RI-ACA (0.831 +/- 0.050, mean +/- SD), RI-BA (0.800 +/- 0.053) and RI ratio (1.039 +/- 0.030) before treatment were(More)
We studied Pourcelot's index (PI), which shows cerebral vascular resistance, in the anterior cerebral arteries and basilar artery, and the PI ratio (Pourcelot's index in the anterior cerebral artery/Pourcelot's index in the basilar artery) in 11 measurements of hydrocephalus. The mean values of PI in the anterior cerebral artery, basilar artery, and the PI(More)
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