Methods The implantation of vena caval filter was performed in 30 patients with DVT of lower extremities.A permanent filter was used in 14 cases, and temporary filter in 16.

• 方法30例下肢深静脉血栓形成的病人，14例植入永久性腔静脉滤器，16例植入临时性腔静脉滤器；