Bell A H, McClure B G, McCullagh P J, McClelland R J
Royal Maternity Hospital, Belfast, Northern Ireland.
Biol Neonate. 1991;60(2):69-74. doi: 10.1159/000243390.
Spectral edge frequency (SEF) of the EEG was studied in 51 healthy neonates to assess its value as a measure of cerebral maturation. SEF was calculated as the frequency below which 95% of the power in the power spectrum resides. Summated SEF (sSEF) of 4 EEG channels correlated significantly with gestational age (r = 0.83). sSEF varied with behavioural state and with EEG derivation. Intra- and interindividual variability were both greater in preterm compared to term babies. We conclude that SEF is a useful measure of cerebral maturation in the newborn and may have a role in studying stressed newborns.
对51名健康新生儿的脑电图频谱边缘频率(SEF)进行了研究,以评估其作为大脑成熟度指标的价值。SEF被计算为功率谱中95%的功率所在频率以下的频率。4个脑电图通道的总合SEF(sSEF)与胎龄显著相关(r = 0.83)。sSEF随行为状态和脑电图导联而变化。与足月儿相比,早产儿的个体内和个体间变异性都更大。我们得出结论,SEF是新生儿大脑成熟度的一个有用指标,可能在研究应激新生儿方面发挥作用。