In the second phase group it was in a state of normal systolic flow velocity, low diastolic flow velocity and high renal vascular resistance.
第二组处于收缩期正常流速，舒张末期低流速，肾血管高阻状态。
ObjectiveTo evaluate the efficiency of heparin on the ratio of peak systolic to least diastolic flow velocity (S/D) of umbilical artery flow velocity waveforms at second-trimester pregnancies.
目的评价肝素对改善妊娠中晚期脐动脉收缩期最大血流速度（S）与舒张末期血流速度（D）的比值异常的临床效果。
Objective This paper is to investigate the ratio of the systolic peak value and the end-diastolic velocity of blood flow (S/D value) and its clinical value, which can predict fetal anoxia.
目的探讨脐动脉收缩期血流峰值（S）与舒张末期血流速度（D）的比值（S/D）对预测胎儿宫内缺氧的临床价值。
Objective to assess the diastolic function of right ventricle of patients with heart disease on the strength early diastolic velocity of blood flow in the right ventricle.
目的：探讨右室舒张早期血流传播速度评价心脏右室舒张功能的价值。
Objective To investigate the effects of diltiazem on left ventricular early diastolic flow propagation velocity (VP) in patients with hypertrophic cardiomyopathy (HCM).
刘丽华 王志斌 聂晶 李艳摘要目的 检测硫氮卓酮对肥厚型心肌病（HCM）左心室舒张早期血流传播速度（VP）的影响。
Conclusions The increase trend of pulmonary venous reversal flow velocity can reflect indirectly the worsening of LV diastolic disfunction;
结论肺静脉反流速度的增大趋势可以间接地反映左室舒张功能的恶化趋势；
Conclusions The increase trend of pulmonary venous reversal flow velocity can reflect indirectly the worsening of LV diastolic disfunction;
结论肺静脉反流速度的增大趋势可以间接地反映左室舒张功能的恶化趋势；
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