Fig. 3From: Infrainguinal inflow assessment and endovenous stent placement in iliofemoral post-thrombotic obstructionsExamples of classification of deep femoral vein inflow.0 a, b Good inflow with a grade 3 axial transformation. c, d Fair inflow with a grade 3 axial transformation and post-thrombotic obstruction caudal to lower stent border. 0 e, f, g Poor inflow with grade 2 axial transformation and post-thrombotic obstruction of both the femoral and deep femoral vein caudal to lower stent border. 0 a, b and e, f, g With contrast injection into the deep femoral vein and no opacification of the femoral vein. * indicates the level of the lower stent border in the deep femoral vein. {indicates post-thrombotic segment caudal to lower stent borderBack to article page