A heart murmur is simply a noise caused by the turbulence of blood flowing through the obstruction from the right ventricle to the pulmonary artery.
心脏杂音是血流从左心室到升主动脉通过狭窄的主动脉瓣口时产生的湍流引起的噪音。
Conclusion: Using color Doppler ultrasonography for detecting the feature of hepatic artery blood stream obstruction syndrome is beneficial for the early diagnosis of hepatic artery complication.
结论：彩色多普勒超声可监测肝动脉血流障碍综合征，掌握其特征，有助于肝动脉并发症的早期诊断。
A carotid bruit is a sound that blood makes when it passes over an obstruction in the carotid artery, the main passageway for supplying blood to the head and neck.
颈动脉是头颈部供血的主要通路，颈动脉杂音是血液流过颈动脉狭窄所产生的声音。
The incidence of obstruction of retinal vein was six times as high as that of the retinal artery.
视网膜静脉阻塞较视网膜动脉阻塞多六倍。
CMRI suggests that the occlusion of the single coronary artery may induce more severe myocardial microvascular obstruction than the stenosis of multiple coronary arteries.
单支冠状动脉闭塞的患者较多支冠状动脉狭窄的患者更容易发生心内膜下的微血管床闭塞。
Angiographic evidence of significant coronary artery obstruction must be provided and the the procedure medically necessary by a consultant cardiologist.
但必须提供血管造影以证实冠状动脉阻塞情况严重，及经心脏专家证实手术必须进行。
Obstruction of an artery to the brain May cause stroke.
若向脑供血的血管被堵塞，可引起中风。
Objective: to evaluate color Doppler ultrasound in the early diagnosis of hepatic artery blood stream obstruction syndrome after orthotopic liver transplantation.
目的：探讨肝移植后超声对肝动脉血流障碍的早期诊断。
If the obstruction is related to kinking rather than intravascular lesions, invasive interventions such as iliac-artery-bypass surgery may not be needed.
如果这种阻塞是与血管的扭曲有关，而不是与血管内的损伤有关，采用侵入性的治疗方法，例如髂骨动脉绕道手术就没有必要了。
If the obstruction is related to kinking rather than intravascular lesions, invasive interventions such as iliac-artery-bypass surgery may not be needed.
如果这种阻塞是与血管的扭曲有关，而不是与血管内的损伤有关，采用侵入性的治疗方法，例如髂骨动脉绕道手术就没有必要了。
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