This progressive decompression design conforms to the venous flow principle, is conducive to the smooth flow of venous blood.
这种循序减压设计符合人体静脉流动原理，有利于静脉血液的顺畅回流。
Pulsed Deppler echocardiography was used to detect the pulmonary venous flow pattern (PVFP) in 40normal children.
应用脉冲式多普勒超声心动图检测40例正常儿童肺静脉血流频谱。
Femoral arterial blood flow's speed was increased, and improvement in venous flow was also found after interventional treatment.
显示治疗后动脉血流增快，静脉血流情况改善。
The results were: (l)After TAE, portal venous flow and velocity were increased, but portal venous diameter had no significant change.
结果为：①TAE后门静脉血流速度及血流量均较栓塞前增加，而门静脉的内径无明显改变；
This instrument is made according to the principle of photoplethysmography. It can be used in diagnosis of arterial disease and venous flow reflux.
本文介绍一种用于无损伤诊断动脉系统疾病和静脉倒流性疾病的外周血管功能测定仪。
Objective To investigate correlation of abnormal sublingual collaterals in patients with primary hepatic carcinoma and portal venous flow alteration.
目的：探讨原发性肝癌异常舌下络脉的特征与门静脉血流动力学变化的相关性。
Conclusion The morphology and hemodynamics of liver and spleen in patients with BCS greatly changed due to the retardation of the venous flow from the liver.
结论BCS肝脏血液回流受阻，肝脾形态及血流动力学发生了相应改变；
Objective To evaluate the clinical value of tissue Doppler imaging(TDI) and pulmonary venous flow spectrum in the assessment of left ventricular diastolic function by E/A ratio.
目的通过组织速度图舒张时间、肺静脉频谱及二尖瓣环E/A比值评价冠心病患者左室舒张功能。
Methods 49 patients with venous valvular insufficiency were examined using 2-D color Doppler flow imaging to observe the anatomic structures of valves and hemodynamics of venous flow in legs.
方法应用二维彩色多普勒血流显像检查下肢静脉瓣功能不全49例，观察下肢静脉血管及瓣膜的解剖结构和血流动力学的改变。
Methods 49 patients with venous valvular insufficiency were examined using 2-D color Doppler flow imaging to observe the anatomic structures of valves and hemodynamics of venous flow in legs.
方法应用二维彩色多普勒血流显像检查下肢静脉瓣功能不全49例，观察下肢静脉血管及瓣膜的解剖结构和血流动力学的改变。
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