论文部分内容阅读
多普勒超声心动图能够及时、准确地显示心脏和大血管的形态结构、血流动力学变化,为确定诊断,选择手术,随诊观察提供了无创性诊断手段,尤其对先天性心脏病分流量与肺血管改变的定量分析是当前临床上瞩目的问题。一、测量方法 (一)血流速度指标测量血流速度是以多普勒速度频谱来反映流经取样容积的红细胞速度分布。主要测量;
Doppler echocardiography can timely and accurately display the morphological structure of the heart and large blood vessels, hemodynamic changes, to determine the diagnosis, choice of surgery, follow-up observation provides a non-invasive diagnostic tools, especially for congenital heart disease points Quantitative analysis of flow and pulmonary vascular changes is currently a clinically significant issue. First, the measurement methods (A) the measurement of blood flow velocity Blood flow velocity is based on the Doppler velocity spectrum to reflect the flow rate of red blood cells flow through the sampling volume. Main measurement