左心室衰竭导致左心房扩张，肺静脉充盈。
Left ventricular failure results in distention of the left atrium, engorgement of the pulmonary veins.
目的探讨手背静脉充盈方法，提高静脉穿刺成功率。
Objective To explore the method of superficial vein turgidity in the dorsum of hand and increase the accuracy of venepuncture.
CTV由于静脉系统充盈欠佳，以MIP，MPR显示为佳，后者不仅可显示栓子的存在，而且可显示栓子的性质。
In CTV, due to venous filling was unsatisfactory while the technique of (MIP), multiplanar reformation (MPR) was good for demonstrating both the embolus and its nature.
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