摘要
对２４例正常儿童及８８例先天性心脏病患儿的肺静脉血流动力学特征，进行了脉冲多普勒超声和彩色多普勒血流显像（ＣＤＦＩ）指标与手术指标的相关性研究。发现：房间隔缺损（ＡＳＤ）者肺静脉血流频谱（ＰＶＦ）呈单峰形特征，其峰值流速（Ｖｐ）与手术实测ＡＳＤ径高度正相关；其ＣＤＦＩ呈收缩期为著的五彩信号。室间隔缺损与动脉导管未闭者均呈高Ｄ峰的双峰形ＰＶＦ，Ｄ峰Ｖｐ与两病的手术实测径呈高度正相关；ＰＶＦ的ＣＤＦＩ呈舒张期为著五彩信号。表明小儿先天性心脏病时肺静脉血流动力学有不同的特征性改变。
In 24 cases of normal subjects and 88 cases of congenital heart disease (CHD), the spectrum profile,velocity peak(Vp) and Colour Doppler Flow Imagine (CDFI) of pulmonary venous flow was measured,as well as the anatomic type and diameter of defect were determined by operation. Linear correlation and regression analysis was taken between Vp and anatomic diameter of defect. The results were that: 1. The spectrum and CDFI of PVF was satisfactory in normal children; 2. In ASD the single peak PVF spectrum was obviously characteristic and there was a positive correlation between SVp and anatomic diameter of ASD (r=0.965,p<0.01); and colour confused CDFI of PVF in systolic duration was obvious. 3. In VSD or PDA, the two peaks and more high D peak of PVF spectrum was characteristic and there was an obvious positive correlation between DVp and anatomic diameter of VSD or PDA (r=0.94,p<0.01),and colour confused CDFI of PVF whith returned to left atrium was more obvious in diastolic duration. Conclusion suggested the character of PVF spectrum and CDFI could be used as a new method for diagnosis and evaluation of hemodynamic state of CHD.
出处
《基础医学与临床》
CSCD
1997年第4期61-63,共3页
Basic and Clinical Medicine
关键词
肺静脉
儿童
先天性心脏病
血流动力学
Pulmonary Venous Flow Doppler echocardiography Children Congenital heart disease
