Objective To evaluate the feasibility and clinical value of color Doppler flow imaging(CDFI) guided inferiorvenacaval filter insertion(IVCFI).
目的探讨超声引导经皮穿刺下腔静脉滤器置入（IVCFI）术的可行性、安全性和临床实用价值。
2
Objective To investigate the feasibility and efficacy of high dose urokinase thrombolysis for treating lower limb deep venous thrombosis (DVT) after inferiorvenacaval (IVC) filter placement.
目的探讨下腔静脉滤器置入后大剂量尿激酶溶栓治疗下肢深静脉血栓形成的可行性。
3
Objective To find out the possibility of omni-liver blood stream interruption blocking the inferiorvenacaval pericardium inter-portion by incisioning diaphragma central tendon through the abdomen.