摘要
本文报道二维Doppler超声测量Q_p/Q_s的新方法。揭示了Qp与二尖瓣血流积分与瓣环内径乘积(MVID)呈正相关,Qs与三尖瓣血流积分瓣环乘积(TVID)呈正相关,即可用MVID/TVID代表Q_p/Q_s,用之测量正常人Q_p/Q_s接近1(0.93±0.083),15例四联症为0.656±0.167,与血红蛋白浓度负相关。结果表明Doppler技术常规测量二尖瓣血流量与三尖瓣血流量(Q_p/Q_s比值方法能够简化。
It was developed that a new method for measuring the ratio of pulmonary blood flow to systemic blood flow by two-dimensional Doppler echocardiography. Qp and Qs blood flow were considered to be propotional to the mitral and tricuspid Doppler flow velocity time integral multipled respectively by mitral or tricuspid valve ring diameters(MVID or TVID), i.e. MVID / TVID was equal to Q_p/Q_s. With the method, we calculated the Qp/Qs ratio close to 1:1 (0.939+/-0.083) in 18 normal persons, 0.656+/-0.167 in 15 patients with Tetralogy of Fallot. Q_p/Q_s in TOF corrected negativly with hemoglobin. Our results demonstrated that conventional Doppler mdthod to calculate the Qp / Qs ratio can be simplified.
出处
《中华超声影像学杂志》
CSCD
1993年第1期8-10,共3页
Chinese Journal of Ultrasonography
关键词
超声波诊断
四联症
肺循环
血流量
two-dimensional Doppler echocardiography, Tetralogy of Fallot
pulmonary blood flow
systemic blood flow
