Objective To evaluate the effects of Catheter-directed Thrombolysis(CDT) and Systemic Thrombolysis(ST) on morphological changes of vein wall and late sequelae after acute Deep Vein Thrombosis(DVT).

• 目的 比较导管直接溶栓 (catheter -directedthrombolysis,CDT)和系统性溶栓 (systemicthrombolysis ,ST)治疗急性深静脉血栓形成后的静脉壁形态学变化及近期疗效。