1·The objective is to explore the roles of color Doppler vena contracta in the evaluation of mitral regurgitation grading.
目的是探讨彩色多普勒静脉收缩术在评估二尖瓣反流分级中的作用。
2·Objective to probe into the value of CDFI in diagnosis of acute deep lower vena thrombosis.
目的探讨彩色多普勒超声在急性下肢深静脉血栓诊断中的应用价值。
3·This is the final level at which to recognize an inferior vena cava interruption with azygos or hemizygos continuation.
此切面是辨别上腔静脉连续性中断，而奇静脉或半奇静脉连续性正常。
4·When we perform a kidney transplantation from a cadaveric donor, this problem may be resolved by using the vena cava to create a venous duct.
当我们进行尸体供肾肾移植时，这个问题可以通过使用静脉腔建立一个静脉导管来解决。
5·Objectives Retention laying vena duct drainage is an effective method to treat pericardial effusion and tamponade. We try to study the pericardiocentesis complications.
目的留置静脉导管引流是治疗心包积液和心包填塞的有效方法，本文旨在探讨心包穿刺引流的并发症。