摘要
作者应用二维脉冲多普勒，对２４例正常新生儿在生后２４ｈ、４８ｈ、７２ｈ以内及１周，连续４次测定大脑前动脉最大血流过度（Ｖｍａｘ），舒张末血流速度（Ｖｅｄ）和升主动脉峰值血流速度（ＰＦＶＡＯ）。发现Ｖｍａｘ，Ｖｅｄ，Ｖｍａｘ／ＰＦＶＡＯ和Ｖｅｄ／ＰＦＶＡＯ随着时间推延而逐渐增高，提示颅内灌注随日龄的增加而逐渐增加。其生后前７天的平均值分别为２８．００～４３．４０ｃｍ／ｓ，１０．６０～１６．８０ｃｍ／ｓ，０．４０～０．６２和０．１６～０．２４。ＰＦＶＡＯ和大脑前动脉阻力指数（ＰＩ）则保持稳定，其平均值分别为６８～７１ｃｍ／ｓ和０．６０。
The maximum velocity(Vmax) and end-diastolic velocity(Ved) of the anterior cerebral arteries(ACA) and the peak flow velocity of the ascending aorta (PFVAO)in 24 normal-termed newborns were serially measured on the 1st,2nd,3rd and 7th day of life by the use of two dimensional pulsed doppler echocardiography. It was demonstrated that Vmax,Ved,Vmax/PFVAO,and Ved / PFVAO increased with the increae of age. Mean values increased respectively from 28.0 to 43.4 cm/s,10.6 to 16,8 cm/s,0.40 to 0.62 and .16 to.24 in the first 7 days after birth.the PFVAO and pulsatility indices(PI)in ACA remained were stable,mean values were 68～71 cm/s and 0.6 respectively.
出处
《浙江大学学报（医学版）》
CAS
CSCD
1995年第4期162-163,共2页
Journal of Zhejiang University(Medical Sciences)
关键词
新生儿
颅内灌注
升主动脉血流
测定
超声心动图
Blood flow velocity,cerebral arteries
Blood flow velocity ,thoracic aorte
Echocardiography,doppler effect
Infant,newborn
