3 patients with membranous (2 patients) and segmental (1 patient) obstruction of IVC were successfully treatedby percutaneous transvenous angioplasty using balloon catheter. Improvements of clinical and radiological findings could be obained after procedures. Relatively good patency was obtained in all cases without complications. This procedure can be applied safely to membranous or segmental obstructions of IVC and elsewhere in the venous systems.